Mobile apps that don't get deleted on day three

Mobile app development solutions: iOS, Android, React Native & Flutter

We design and build native iOS and Android apps - and cross-platform products in React Native and Flutter - from category-defining MVPs to apps with millions of monthly active users. Since 2008 we've shipped 800+ apps, including for Sony, Volkswagen and the British Council.

What you get

Not just a build.
A launchable product.

Most app development agencies hand you a binary and walk away. We go further: you get a fully tested, observable iOS or Android product - with a roadmap, an SLA, App Store launch support, and a 90-day warranty.

  • UX research that pays for itself

    5-day discovery sprint with real users from your target segment. We've prevented dozens of "build the wrong thing" disasters.

  • Native or cross-platform - your choice

    Swift/Kotlin when battery, performance or platform-feel matter. React Native or Flutter when speed-to-market does.

  • Observability from day one

    Sentry, Firebase, RevenueCat, Mixpanel - wired up before TestFlight. You see what users actually do.

  • App Store submission included

    Apple metadata, screenshots, App Store Connect setup, review-cycle handling. We've shipped 800+ submissions.

  • 90-day warranty, no questions

    Bug found in the first 90 days post-launch? We fix it. Free.

What we offer

Mobile app development services we offer

Comprehensive iOS, Android, and cross-platform app development services, in line with your business needs - whether you need a single-platform native app, a fast MVP, or a full cross-platform rollout with ongoing maintenance and support.

iOS app development

Create robust and advanced mobile apps for IOS platforms. Using the most suitable technologies and frameworks, our team can create smart mobile apps that are adept for the platform. These native apps rely on the platform’s unique capabilities to deliver immersive experiences to the users.

Android app development

Develop customizable and functional Android mobile apps for your users. We learn how similar apps satisfy the user intent and their pain points with industry analysis. These insights help us create feature-rich apps tailored to leverage the unique capabilities of Android to ensure top-notch performance.

React native development

Create a top-notch React native app for iOS or Android with the same code base. Our developers have worked on numerous React native app projects and understand how our clients can benefit from them. Share your app expectations and let our experienced team take care of the app for you.

Flutter app development

Save yourself the trouble of building separate apps for diverse platforms. With our flutter app development, enjoy the benefit of native apps without its limitations. With an advanced cross-platform development technology like Flutter, grow your business, whether you are a small, medium, or large business using our flutter app development services.

Xamarin app development

Create unique experiences for your end users on diverse platforms with our Xamarin app development services. Our user-centric Xamarin development delivers seamless performance for an immersive and unified experience for users across multiple platforms.

Mobile app maintenance & support

Developing an app is just the beginning. To keep your end users delighted, you need to keep improving your app with regular maintenance. Our app strategists can monitor your app regularly and update it as required. The app maintenance service also includes, security updates, feature updates, and more.

Mobile app in production

Apps that earned their home-screen spot.

Carefully crafted apps that deliver real value and seamless experiences - and stay installed.

Stack-neutral

The right tool for your job.

Whether you need native iOS and Android development or cross-platform apps in React Native or Flutter, we pick the mobile app development stack that fits your hiring market, your cloud bill and your timeline.

Native
Deep integrations.
Maximum performance.
Swift / SwiftUI
Kotlin
Jetpack Compose
Objective-C
Best for apps that need full device capabilities and native performance.
Cross-Platform
One codebase.
Many platforms.
React Native
Flutter
Expo
Xamarin
Ship faster across platforms with shared components and performance.
Backends We've Paired
Scalable. Secure.
Production-ready.
Node.js
Python / Django
Laravel
.NET
Firebase
AWS Amplify
Modern, reliable backends that scale with your product.
No vendor lock-in Pause, pivot or stop anytime.
Tailored to your goals Tech that fits your roadmap.
Built for speed & scale Deliver value, faster.
Secure by default Best practices, every time.
Mobile app development Process

Six sprints. App store on the seventh.

Our custom mobile app development process is built around weekly demos and working software - so you see your iOS or Android app take shape, sprint by sprint, with no surprises at launch.

SPRINT 1 / Discovery

User research + product brief

5 user interviews, competitive teardown, success metrics. You leave with a one-page brief and a Figma board.

SPRINT 2-3 / Design

UX flows + visual system

Wireframes, prototypes, motion specs, design system. Tested with users mid-sprint.

SPRINT 3-6 / Build

Engineering, weekly demos

Friday demo, Friday invoice. Pause anytime. TestFlight builds from sprint 3 onward.

SPRINT 6 / Beta

Closed beta + instrumentation

50-500 real users, structured feedback loop. Crash-free rate > 99.5% before submission.

SPRINT 7 / Launch

App Store + Google Play

We handle review cycles, store optimization, day-zero monitoring, and the inevitable hot-fix.

+ ONGOING

Operate or hand off

Stay with us under SLA, or take it home with full docs, runbooks and a 90-day warranty.

Industry expertise

We've shipped here. Many times over

Deep teams with industry context - not generalists googling compliance acronyms. Each industry below has 30+ shipped projects and a partner who knows the regulator.

Word of mouth

What clients tell their peers.

Real names, real companies, real numbers. Video on the left, written notes on the right - choose whichever feels more honest.

trieval

"They feel like our team — not a vendor."

RH
Ismail Abualsmah
CEO, Trieval
01:18
Repeat client
Although regulations prevented the site's launch, it met all requirements in terms of form and function. Fullestop's project plan charted a clear course to completion. The team's flexible, diverse talent pool enabled them to manage each stage of the project with consistent levels of skill.
Fast turnaround
Weekly demos, no surprises, and they push back when we're wrong. That last part is rare. Cut our cloud bill 47% in the first audit.

News & insights

Check Out the Latest Trends and Tech Discussions

We constantly come up with top-tier resources and breathtaking ideas that would help you stay informed about
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Frequently Asked Questions

The questions every founder asks us.

  1. Yes, we do offer mobile app maintenance and support services. As a top mobile app development company in India, Fullestop has always offered these services to our clients. Whether or not you develop your mobile app with us, you can confidently hire our app maintenance and support services.

    Our team of expert app developers is also adept at providing maintenance and support for apps that other businesses have developed. In addition, we also offer the support and maintenance services as part of our mobile app development package as well.

    You can choose one of our many packages, including the AMC package. To learn more about our offerings, you can contact our app development team.

  2. Well, it depends on what you want and the goals of the app you want to develop. Both hybrid and native apps have their own benefits.

    Native apps offer a better user experience. They can also better use the exclusive capabilities of the respective platform, the APIs, and all device features, which leads to a better experience on native apps. Further, if your app uses advanced animations, heavy processes, etc., then a native app is the best option. But native app development is expensive.

    On the other hand, hybrid apps are quick and more affordable to develop. You can develop an app suitable for multiple platforms at the cost of one app. These apps can also help you reach more audiences on different platforms. One huge challenge of hybrid apps is the performance limitations. Therefore, native apps are the best choice if you don’t mind the expense and want the best performance. Hybrid apps are ideal if you want to reach more audiences and save money.

  3. Different types of mobile app development projects can take different durations to complete. For example, a small mobile app with fewer features and less complexity can be finished faster. Typically, such apps can take anywhere between 2 and 3 months. If the app is a little more complex and has a lot of features, it can take 4 to 6 months. In the case of complex apps with extensive features, user and admin accounts, diverse integrations, etc, the time can be even longer. Typically, such enterprise apps can take nearly a year to complete.

    At the same time, the exact time can only be determined after looking at the project specifications and feature requirements. If you want a clearer picture of the duration, you can talk to our app development team.

  4. The cost of developing a mobile app depends on the type of the app, the platform it is developed for, the size and complexity of the app, etc. Therefore, without looking at the actual requirements and specifications of the app, it is impossible to give an exact figure about the cost.

    However, we can give an estimate of the cost of building a mobile app in 2024. If you are building a simple app, it can range from USD 5,000 to 10,000. For a medium-sized app with a few features, it can range from USD 20,000 to USD 45,000. If the app is huge and complicated, it can take anywhere from USD 70,000 to 100,000. For enterprise mobile apps, the cost can even go higher from USD 120,000 and above.

  5. At Fullestop, we primarily develop applications for IOS and Android. We also develop hybrid mobile apps that are compatible with both these platforms. Our focus is on delivering high-quality mobile apps for all types of mobile platforms as needed by our clients.

  6. Fullestop has a detailed mobile app development process for faster development and app delivery. Typically, we start with interacting with the client and understanding their requirements. The second stage is market and industry analysis. After collecting the required insights, we then strategize the development. It includes the technologies that we would choose, whether we want to go with a native or hybrid app approach, etc. After the strategy, we will then work on designing the UI/UX part of the app.

    Once the developmental and design elements are finalized, we will start prototyping. In the next step, we develop the actual application. Our approach to the project can change depending on the app and client requirements.

    After development, the app is tested for performance, reliability, compatibility, etc., and then it is deployed. While that marks the end of the development process, we also offer continuous monitoring and support services to ensure that the app keeps performing as expected.

  7. Native apps are designed for a particular mobile platform, such as iOS or Android. For example, a mobile app developed for iOS cannot be used on Android, and vice versa.

    Mobile app development companies often use programming languages and technologies native to a particular platform to develop native apps. For example, IOS mobile app development requires Swift or Objective-C, while Android app development requires Kotlin or Java. These apps also offer better performance and responsive feedback as they are tailored to one platform. Native apps can also use mobile phone features, like GPS, camera, sensors, etc., better than hybrid apps.

    Hybrid apps are limited in terms of performance. But they still can offer users similar performance to native apps. It is cost-effective to develop and can reach more people than native apps. Hybrid apps are also easy to design and develop without compromising user features.

  8. Yes, we can integrate your mobile app with third-party services. This is a great opportunity to expand your app’s functionality. Here is what we do when working to integrate your app with third-party services.

    • Evaluate your requirements and goals.
    • Choose the right provider for API integration.
    • Review the documentation for accurate integration.
    • Register with the service and obtain the API keys.
    • Implement the API integration with your app.
    • Check for errors and security to address them.
    • Test the integration for performance.
    • Assess and maintain the integration.
  9. Yes, of course. You can always update the app even after it is launched. In fact, providing updates to a mobile app based on the user feedback after it is launched is a great way to improve your app’s performance. This will help users love your app. At Fullestop, our mobile app maintenance services can help you with your app update requirements.

  10. Yes, we offer post-launch app support and maintenance support to all our clients. Some clients may not require such support. However, those who wish to have such maintenance and support services after launching their apps can hire our services. Our application maintenance and support services are also available as part of the app development service or as independent services.

  11. We have different communication channels and systems in place to communicate with our clients. Often, we have a client account manager to keep the communication seamless between you and our team. This is often the single point of contact to make it easier to talk to us.

    In addition, we use different project management systems and software tools for communication. We add our clients to the tool, and you can participate in the team's communications, get regular updates, share feedback, etc.

    We also hold virtual meetings with our clients using Zoom or Google Meet to discuss important project milestones.

  12. Yes, we do. We sign a Non-Disclosure Agreement with all our clients when starting a project. This agreement ensures that the client's business details, data, and ideas are protected using the best systems and technologies. It also helps us enjoy the client's full confidence so that we can get all the data and insights from the client to make the project a great success.

Pick your starting line

Three ways to get your app built.

Back-of-napkin idea or a live app that needs a rebuild we have a low-risk first step for both.