Event App Development Company

With 10+ years in the game and brands like Eventbrite in our corner, we craft event apps that hit your goals like they’re our own.
  • badge.name
    Top Software Development Company, 2025
  • badge.name
    Listed Among Top 1000 Companies Globally
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    Top Software Development Company for Small Businesses
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    Top Software Development Company in Ukraine for Startups

Dylan Serota
Dylan Serotausa

Head of Platform at Eventbrite

The Clockwise team was excellent. We are thrilled with the final product.

$580M

in cash reserves as of late 2024

65.8M

tickets facilitated per quarter in 2024

54.2M

visits per month

Jeremy Irish
Jeremy Irishusa

Co-Founder at Geocaching

The team comes up with solutions and has excellent ideas to improve the project.

3,3M

users around the world

$500k+

spent with us

Rachel Efron
Rachel Efronusa

Founder & CCO at Muzi

They excel at project management; they're very diligent and reliable.

5-star

rating on App Store

500+

downloads in the first months

Wouter Dijkstra
Wouter Dijkstranetherlands

Co-Founder at WijnSpijs

A great agency! They do what they say.

1k+

restaurants collaborated with

25k+

food enthusiasts engaged annually

01 | 04

Fortune #40 Global Health Leader

1886-founded | 131K employees | $16B in R&D

NYSE: EB

850k creators | 300M tickets sold in 2023

8th GPS App in the US

3M+ in 2023 | 10M+ Google Play downloads

Cultural Exchange Led by 2K+ Team

Est. 1980 | 500K+ Alumni | 100+ Countries

$12M Revenue Tech Co.

MBE Certified by NMSDC

Trusted Logistics Co. Since 1979

ISO9001 Certified Systems Integrator

3rd in Retail Inc. 5000

$6M+ raised | #1 ranked company in CT

UCSF-Trusted Health App

with 50K+ users in 60+ countries

Google-Funded Green Tech

144K Ha Monitored | Featured by Reuters

Telecom Experts Est. 2005

Google, Proximus & Orange partners

NASA-Trusted Workflows Builder

Est. in 2007 | PCI, GDPR & HIPAA certified

Top Swiss Agency

Awarded #1 Swiss App in 2025

#2 SMM Agency in Australia

Serves 1k+ Australian B2B across 20+ domains

Google Cloud Partner

Trusted by Fortune 5 UHG

F&B Startup with 25K+ Guests/Y

4.5 on TripAdvisor | 600+ Dining Partners

Fortune #40 Global Health Leader

1886-founded | 131K employees | $16B in R&D

NYSE: EB

850k creators | 300M tickets sold in 2023

8th GPS App in the US

3M+ in 2023 | 10M+ Google Play downloads

Cultural Exchange Led by 2K+ Team

Est. 1980 | 500K+ Alumni | 100+ Countries

$12M Revenue Tech Co.

MBE Certified by NMSDC

Trusted Logistics Co. Since 1979

ISO9001 Certified Systems Integrator

F&B Startup with 25K+ Guests/Y

4.5 on TripAdvisor | 600+ Dining Partners

Google Cloud Partner

Trusted by Fortune 5 UHG

#2 SMM Agency in Australia

Serves 1k+ Australian B2B across 20+ domains

Top Swiss Agency

Awarded #1 Swiss App in 2025

NASA-Trusted Workflows Builder

Est. in 2007 | PCI, GDPR & HIPAA certified

Telecom Experts Est. 2005

Google, Proximus & Orange partners

Google-Funded Green Tech

144K Ha Monitored | Featured by Reuters

UCSF-Trusted Health App

with 50K+ users in 60+ countries

3rd in Retail Inc. 5000

$6M+ raised | #1 ranked company in CT

Trusted Logistics Co. Since 1979

ISO9001 Certified Systems Integrator

$12M Revenue Tech Co.

MBE Certified by NMSDC

Cultural Exchange Led by 2K+ Team

Est. 1980 | 500K+ Alumni | 100+ Countries

8th GPS App in the US

3M+ in 2023 | 10M+ Google Play downloads

NYSE: EB

850k creators | 300M tickets sold in 2023

Fortune #40 Global Health Leader

1886-founded | 131K employees | $16B in R&D

F&B Startup with 25K+ Guests/Y

4.5 on TripAdvisor | 600+ Dining Partners

Google Cloud Partner

Trusted by Fortune 5 UHG

#2 SMM Agency in Australia

Serves 1k+ Australian B2B across 20+ domains

Top Swiss Agency

Awarded #1 Swiss App in 2025

NASA-Trusted Workflows Builder

Est. in 2007 | PCI, GDPR & HIPAA certified

Telecom Experts Est. 2005

Google, Proximus & Orange partners

Testimonials

Dylan Serota
Dylan Serotausa

Head of Platform at Eventbrite

The Clockwise team was excellent. We are thrilled with the final product. They struck a perfect balance of being autonomous in their work and communicative at critical junctures.

Jeremy Irish
Jeremy Irishusa

Co-Founder at Geocaching

Clockwise Software has exceeded our expectations regarding the quality of their work. They deliver on time and within budget. They’re very responsive to issues. The team comes up with solutions and has excellent ideas to improve the project. Overall, it’s an excellent partnership.

Rachel Efron
Rachel Efronusa

Founder & CCO at Muzi

Clockwise Software excels at project management; they're very diligent and reliable. We can count on them. We've worked with a couple of organizations before, and this is the first time we know that if we send a list of things, the team will pay attention to every item. We don't have to worry about missing details. Clockwise is invested in realizing our vision and is willing to share their feedback.

Nicolas Slatiner
Nicolas Slatinerusa

Lead Front-end Developer at Orthodox Union

The Clockwise Software developers always help us achieve our goals. Communication is always excellent and deadlines are met most of the time. They’re very transparent. So, It was easy for us to plan ahead whenever there was a complicated task.

They have a very impressive tech understanding. They are very good with all the technologies they work with.

01 | 0401 | 02

Event app types we can build for you

Event app development process

Here’s how we bring your product to life:

1. Discovery: Define your event app blueprint

We start by understanding exactly what your event app needs to achieve — how it will support organizers, engage attendees, and integrate with the overall event experience.

At this stage, we focus on planning; our project managers, business analysts, designers, and engineers work with you to outline essential features, attendee interaction flows, integrations such as ticketing or live streaming, and the ideal technology stack.

Backed by 10+ years of experience and 200+ delivered products, we create a detailed, risk-aware blueprint and scalable architecture that will guide the entire development phase with clarity and precision.

Learn more

2. Design: Create engaging event interfaces

During the design phase, we turn your event app concept into an engaging, user-friendly interface. Every screen is crafted to guide attendees effortlessly — registration, agenda browsing, interactive networking spaces, and so on.

We prioritize versatile design so your app looks and works perfectly across all devices, regardless of screen size or platform. Throughout the process, from wireframes to polished layouts, we collaborate closely with you to maintain brand consistency and deliver a design that truly connects with your audience.

Learn more

3. Development: Build with agility and precision

As an event app development company, we create high-performance applications that handle the fast pace and high demands of live events. Development runs in focused 2–4 week sprints, with regular check-ins and live demos. Guided by Agile practices and PMI-backed standards, we remain flexible to adapt to last-minute changes. We track timelines and budgets with SPI & CPI metrics, sending weekly reports for complete transparency.

4. Testing: Guarantee a flawless attendee experience

For event apps, reliability is non-negotiable. Our QA process is tailored to your app’s complexity and audience size. Depending on your project, we discard unnecessary testing that only inflates costs and focus on the activities that guarantee your app meets requirements.For simpler apps, we run regular manual checks. For large-scale events, we implement rigorous testing, covering cross-device compatibility, load handling for peak traffic, data security, and user experience across varied network conditions. Plus, we can simulate real event-day scenarios to make sure check-in, live streaming, and notifications run smoothly.

Learn more

5. Deployment: Launch with confidence

Before launch, we carefully check all environments, data flows, and key integrations to keep the attendee experience smooth. We set up monitoring, prepare your team if needed, and keep contingency plans ready so any issue can be fixed quickly.

As an event app management development company, we coordinate closely with you on the release schedule to avoid clashes with critical event timelines. Your app can be deployed to cloud infrastructure or distributed via private channels, with the entire process managed for a smooth, controlled, and reliable event-day rollout.

6. Growth: Enhance and evolve post-event

If you plan to bring future development in-house, we provide your team with complete documentation, knowledge transfer sessions, and all necessary access so they can manage the app confidently.

Prefer to keep working with us? We'll continue enhancing your platform with features that improve attendee engagement, strengthen sponsor visibility, and optimize performance. We also ensure your technology scales smoothly to handle larger audiences or more complex functionality.

Risk-free event app development

Reliable timelines

Budgets that stay on track

Complete transparency

Risk management

Timelines you can count on

We have delivered over 200 projects, so we know how to set schedules that hold. Our team uses Agile planning and sprint-based delivery, tracking progress with precision to keep variance under 10%. You receive regular updates, progress demos, and clear reports, so every milestone is predictable and stress-free.

on-time development

Core event app features your app will get

Why choose us?

  • Flexible, cost-effective solutions without in-house hiring hassles or long-term commitments.
  • Full transparency — you get detailed reports, complete access to code and documents, and regular updates.
  • Skilled Eastern European engineers that follow PMI standards and apply refined QA for consistent excellence.
  • We continuously track CPI & SPI and actively manage scope to keep your project on course.
  • You benefit from deep expertise built over years, saving you time and investment.
  • Tailored communication plans keep collaboration clear and efficient from day one.

200+

digital products

<10%

CPI & SPI variance

99.89%

acceptance rate

30+

mobile apps

10+

event apps built

Let’s talk

Turn your idea into a powerful event app. With over 10+ years of expertise, we craft event apps that engage and inspire. Start the conversation now.

  • Experts involved - BA, engineers, designers
  • Straight answers, no sales pitches
  • Hear back within one business day
Serhii

Head of Client Relations

Eugene

Account Executive

Serhii photoEugene photo

Got questions? We’ve got answers

Can you develop a web version of my application?

Absolutely. We build event app solutions that run seamlessly on both mobile and web. This can include a full-featured attendee portal, an interactive dashboard for organizers, and an admin panel for your team. Using React Native together with modern web technologies, we deliver high-performance, cross-platform experiences from a single codebase. The result is a consistent user experience, faster updates, and effortless data syncing across all devices.

Can the event app be customized with my branding?

Of course. As an event management app development company, we design and build apps that reflect your brand in every detail. Our team customizes the visual design like colors, logos, fonts, imagery, and also tailors the functionality to match your event’s needs. From personalized user flows and interactive features to branded navigation and layouts, we ensure your app feels like a natural extension of your event. Personalized user flows, interactive features, branded navigation, and unique layouts create a cohesive, engaging experience that reinforces your brand at every interaction.

Can the app integrate with ticketing, CRM platforms, and other platforms?

Yes. We can connect your event app with ticketing, CRM, and other systems so registrations, ticket purchases, and check-ins sync automatically. At the start of each project, we review the API documentation and map out what is possible. This helps us identify limits early, avoid bottlenecks later, and choose the integrations that add true value for your event app type.

Will my event app work offline?

Yes. As an experienced event app development company, we can design your app to retain essential functionality even without an internet connection. Attendees can access schedules, maps, speaker details, and downloaded resources offline, so they’re never left without key information. For venues with poor connectivity, this approach ensures uninterrupted access to critical event content, while the app automatically updates once the device reconnects to the internet.

Can you meet our quality standards?

We match your quality benchmarks with proven talents and structured approach. We start by agreeing on the scope and requirements for each feature. During development, we run regular demos so you can see progress, give feedback, and make sure everything matches your vision.

You’ll have full transparency with real-time access to boards, wireframes, and code, so you can track progress at every stage. 

How do you keep us in control throughout the process?

You’ll always know exactly where things stand. During event management app development, we set up a communication flow that matches your preferences — Slack channels, weekly check-ins, live demos, or structured status reports.

Scope, milestones, and progress are tracked in real time. If priorities change, we share the impact before it affects your budget or timeline. From estimates vs. actuals to risk flags and sprint goals, every detail is communicated early, clearly, and with full context so you stay in control from start to finish.

How will you help us retain expertise over the parts we outsource?

You stay informed and in control at every stage. We create clear documentation and, if needed, a final product guide so your team can maintain and build on the work. Knowledge transfer is built into our process; we work closely with your team to share insights and ensure nothing is lost. You have real-time access to boards, code, and documentation, plus regular demos and Agile updates so the product evolves exactly as you envision.

How can we be sure you’ll deliver exactly what’s agreed on?

Our event mobile app development services are built to avoid surprises and keep everything aligned. We start by confirming and documenting wireframes, designs, and feature requirements, helping you shape them if they’re not fully defined. Hands-on demos and prototypes let you review progress in real time and adjust as needed.

Using Agile, we adapt to new insights, ensuring the final product matches your vision. After launch, we stay involved, refining features, and guiding enhancements, so your app continues to meet evolving needs long after release.

Will the team be consistent so they understand our product and code?

Team stability is a core strength. Our average employee tenure is 3.8 years (well above the industry average), and our churn rate is just 5.5%. This means you work with dedicated professionals who stay on your project long term. We keep retention high with competitive salaries, growth opportunities, and ongoing learning. If a change does happen, our documentation and knowledge-sharing practices ensure new members onboard quickly without disruption. With us, your event management mobile app development project stays in steady, experienced hands.

How will we fully understand the outsourced code for internal maintenance?

We make sure you fully understand the codebase so your team can handle maintenance confidently. Knowledge transfer begins once the core of the project is in place. Our developers work closely with your team, walking through workflows and architecture as features take shape, so your team is ready to take over smoothly.. During transition, we provide detailed documentation and a structured handover so nothing is left unclear. If you move development in-house, our process ensures a smooth changeover. Our approach to event management app development services is built on transparency and collaboration, so you always stay in control.

Will language barriers affect communication?

No. Almost all of our clients (98%) are from the US and UK, and we communicate daily in clear, fluent English. Our team is comfortable with both technical terminology and business discussions. You can expect smooth, efficient communication throughout the project, with no misunderstandings slowing things down.

Will we retain full IP ownership of the product?

Yes. Everything we develop for you is 100% yours, as clearly stated in our contract. We respect your ownership rights completely and make sure there’s no ambiguity.

How do you handle continuity and stability given the situation in Ukraine?

Our operations are structured for resilience. Teams are distributed across safe locations, including areas outside Ukraine, and we’re energy-independent to avoid downtime. Since the conflict began, we’ve maintained uninterrupted delivery, scaled teams, and signed new long-term clients. This setup ensures your project continues smoothly, even in challenging conditions.

How do you keep estimates accurate and our budget on track?

Our estimates come from our experience. Using PMI standards, we keep variance below 10%, ensuring reliable timelines and budgets. We also identify risks early and plan for contingencies to avoid delays. Any change in scope is discussed and approved with you, keeping the project focused and spending predictable.

Rough event app development costs

Discovery and prototype

$15,000 to $50,000

Refine your event app concept and validate it with a small-scale prototype.

Features

  • Clear objectives and target audience definition
  • Clickable app prototype with basic event navigation
  • Proof of concept (PoC) for core event interactions 
  • Feature list and functional specifications
  • Time and cost estimates

Minimum viable product

$50,000 to $100,000

Build a functional event app with core features for quick launch, often for a single event or conference.

Features

  • Custom design 
  • Advanced session management with filters and personalized agendas
  • Live polling and Q&A
  • Networking features (chat, meeting booking)
  • Advanced analytics and reporting
  • Third-party integrations 
  • Enhanced security

Solid web portal

$100,000 to $500,000

Develop a robust, scalable app for recurring or multi-event management.

Features

  • Fully branded event pages, tickets & mobile app
  • Advanced ticketing with seating charts, tiers & secure payments
  • Vendor & sponsor portals with contract, booth & lead tools
  • Real-time attendee engagement: Q&A, chat, matchmaking

Market-leading portal

$500,000+

Create a premium, feature-rich platform for large-scale, multi-day, multi-venue events or an enterprise-level event series.

Features

  • Fully custom brand-focused UI/UX design
  • AI-driven recommendations
  • AR venue navigation
  • Multi-module architecture for different event types
  • Dedicated app for different event tracks or departments
  • Complex integrations

Factors influencing the cost:

  • Complexity of features
  • Design requirements (brand identity, custom animations).
  • Required integrations (ticketing, CRM, video conferencing).
  • Security requirements 
  • Supported platforms and devices 
  • Product development team composition .
  • Event scale (number of attendees, venues, sessions).

 

Key people

Andrii
Andrii
Founder & CEO
Clockwiser from Day 1 | Led Clockwise to Top Ukrainian IT Company
Andrii
🎤 Karaoke champion
🧠 Quiz monster
🐈 Cat team
Bogdan
Bogdan
Head of Delivery
10 y. of experience | Set up delivery with 99.88% acceptance rate
Bogdan
🏂 Snowboarder
💿 DJ
🥁 Drummer
☕ Coffeeholic
Serhii
Serhii
Head of Client Relations
11 y. of experience | 98% client satisfaction rate
Serhii
🚞 Traveller
Gym rat
☕ Coffeeholic
Natalia
Natalia
Head of People
10 y. of experience | 100+ hired talents
Natalia
Hyggeist
Wanderlust Soul
🏊‍♀️ Swimmer
🕯️ Detail Aesthete
Mike
Mike
Solution Architect
15 y. of experience | 50+ projects with 99,99% uptime reliability
Mike
🧑‍🍼Father of 3
Pavlo
Pavlo
Tech Lead
15 y. of experience | Managed 40+ developers as Tech Lead
Pavlo
💨 Motorhead
🧰 Tinkerer
Andrii
Andrii
Founder & CEO
Clockwiser from Day 1 | Led Clockwise to Top Ukrainian IT Company
Andrii
🎤 Karaoke champion
🧠 Quiz monster
🐈 Cat team
Bogdan
Bogdan
Head of Delivery
10 y. of experience | Set up delivery with 99.88% acceptance rate
Bogdan
🏂 Snowboarder
💿 DJ
🥁 Drummer
☕ Coffeeholic
Serhii
Serhii
Head of Client Relations
11 y. of experience | 98% client satisfaction rate
Serhii
🚞 Traveller
Gym rat
☕ Coffeeholic
Natalia
Natalia
Head of People
10 y. of experience | 100+ hired talents
Natalia
Hyggeist
Wanderlust Soul
🏊‍♀️ Swimmer
🕯️ Detail Aesthete
Mike
Mike
Solution Architect
15 y. of experience | 50+ projects with 99,99% uptime reliability
Mike
🧑‍🍼Father of 3
Pavlo
Pavlo
Tech Lead
15 y. of experience | Managed 40+ developers as Tech Lead
Pavlo
💨 Motorhead
🧰 Tinkerer
Dmytro
Dmytro
Tech Lead
15 y. of experience | 10+ AWS projects led
Dmytro
🏎️ F1 Fan
🍻 Beer connoisseur
☕ Coffee aficionado
Yana
Yana
Design Lead
12 y. of experience | 100% UI/UX acceptance rate after user tests
Yana
👩‍🎨 Local artist
🧘‍♀️ Yoga practitioner
🦻Hearing Accessibility Advocate
📚 Bibliophile
Bogdan
Bogdan
QA Lead
17 y. of experience | QA Lead on 10+ multi-domain projects
Bogdan
🎓 Nerd
⛷️ Ski fan
Strong Spirits expert
Andrii
Andrii
Project Manager
8 y. of experience | 30+ projects delivered
Andrii
🏎️ Junior Car Drifter
🧳 Traveller
☕ Coffee enthusiast
Tetiana
Tetiana
Business Analyst
5 y. of experience | Saves $30K on avg./client with discovery
Tetiana
🧠 Braving the unknown
💬 Empathy-driven communicator
🏖️ Passionate traveler
Yelyzaveta
Yelyzaveta
Tech Lead
9 y. of experience | 10+ React projects led, 1.5+ years each
Yelyzaveta
⛸️ Figure skater
🏔️ Explorer at heart
🪴 Bonsai & bloom keeper
📖️ Avid reader
01 | 04

Technologies we use

Frontend
50+ skilled devs
1M+ app users/mo.
React
Vue JS
Angular
Next JS
Backend
70+ highloaded systems developed
100+ API integrations with global systems
Node JS
Laravel
Ruby
Mobile
30+ apps 4.7+ rated
50+ interfaces with NPS>85%
React Native
Kotlin
Infrastructure
90+ cloud hosted apps
99.99% uptime reached
CI/CD: 30% release speed up
AWS
Google Cloud
Azure
Docker
LLM
40+ hrs/month saved by AI assistant
Models trained with 95% accuracy
GPT-4
Claude
Llama-AI
Gemini
Generative AI APIs
Processing up to 1TB of generative data per day
Midjourney
GPT-4
Stable Diffusion
AI languages and frameworks
100+ models for data analysis and predictions
Python
R
PyTorch
Tensor Flow

Awards

Show more
Top Software Development Company, 2025
Top Software Development Company, 2025
Top IT Services Company, 2025
Top IT Services Company, 2025
Listed Among Top 1000 Companies Globally
Listed Among Top 1000 Companies Globally
Top NodeJS Developers, 2025
Top NodeJS Developers, 2025
Top Managed Service Provider in 2025
Top Managed Service Provider in 2025
Top Software Development Company, 2025
Top Software Development Company, 2025
Top IT Services Company, 2025
Top IT Services Company, 2025
Listed Among Top 1000 Companies Globally
Listed Among Top 1000 Companies Globally
Top NodeJS Developers, 2025
Top NodeJS Developers, 2025
Top Managed Service Provider in 2025
Top Managed Service Provider in 2025
Top Ukrainian Cloud Server Migration Company, 2025
Top Ukrainian Cloud Server Migration Company, 2025
Top Ukrainian Hosting and Cloud Service Company, 2025
Top Ukrainian Hosting and Cloud Service Company, 2025
Top Ukrainian IT Services Company for Real Estate
Top Ukrainian IT Services Company for Real Estate
Top Software Developers for Advertising and Marketing, 2025
Top Software Developers for Advertising and Marketing, 2025
Top IT Services Company for GPS Navigation and GIS, 2025
Top IT Services Company for GPS Navigation and GIS, 2025
Top Software Development Company in Ukraine for Startups
Top Software Development Company in Ukraine for Startups
Top Software Development Company for Small Businesses
Top Software Development Company for Small Businesses
Top React Development Company
Top React Development Company
Top B2B Company Globally, Fall 2024
Top B2B Company Globally, Fall 2024
Top B2B Company Globally, Spring 2024
Top B2B Company Globally, Spring 2024
Top Software Development Company, 2023
Top Software Development Company, 2023
Top IT Services Company, 2023
Top IT Services Company, 2023
Most Reviewed Software Developers on Clutch
Most Reviewed Software Developers on Clutch
Top NodeJS Development Company, 2023
Top NodeJS Development Company, 2023
Top Software Development Company for Marketing and Advertising, 2023
Top Software Development Company for Marketing and Advertising, 2023
Top Ukrainian IT Services Company for Advertising and Marketing
Top Ukrainian IT Services Company for Advertising and Marketing
Top Ukrainian Development Company, 2021
Top Ukrainian Development Company, 2021
Top Ukrainian Development Company, 2020
Top Ukrainian Development Company, 2020
Top Ukrainian B2B Company, 2019
Top Ukrainian B2B Company, 2019
Top Ukrainian Development Company, 2018
Top Ukrainian Development Company, 2018
01 | 25

Build your app with the team trusted by Eventbrite

We combine 10+ years of expertise with 99.89% work acceptance rate to give you complete project confidence.
By submitting this form, you agree to Clockwise Software Privacy Policy.
Event app development services we provide
Case studies
Testimonials
Event app types we can build for you
Event app development steps
No-surprise development
Core event app features
What sets us apart?
FAQ
Development costs
Technologies we use
Contact us