Mobile app development company in St. Petersburg
You get a mobile app shaped around the tasks your customers or staff need to complete. For your St. Petersburg business, we build screens for iOS and Android, connect accounts and data through a backend, and handle store listings and submission. At MSH Technologies, we are a studio in India and work with you remotely from the initial brief through to launch.
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What happens next
- 01Tell us what you need, in the form or on WhatsApp.
- 02Sohail replies within 1 working day (Mon–Sat, IST).
- 03We agree the scope together, then send your quote.
- Projects delivered
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- Years building for the web
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- Live and in use
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What you get
What’s included in mobile app development
App design
Screens and flows designed for iOS and Android conventions.
Cross-platform build
One React Native codebase for both platforms, with native modules where needed.
Backend & APIs
Accounts, data, notifications and admin tools behind the app.
Push notifications
Timely, targeted notifications that bring people back.
Payments & subscriptions
In-app purchases and subscriptions on both stores.
Store launch
App Store and Google Play listings, submission and release.
Tools we use: React Native, Expo, Swift, Kotlin, Firebase, Node.js.
Choosing
Should you build a cross-platform app or go native?
Start with the tasks your app needs to support. A cross-platform build shares most of its code across iOS and Android and suits common flows such as accounts, forms, bookings, maps and payments. We use React Native for most apps, with native development when deeper device features call for it.
A native build uses Swift for iPhone and Kotlin for Android. It fits work involving heavy graphics, complex background tasks or new platform features needed at launch. The trade-off is maintaining separate codebases, so changes need attention on each platform.
A progressive web app is another option, especially for staff tools. It avoids store review, though it needs packaging to appear in app stores; on iPhone, it can request notification permission only after someone adds it to their Home Screen. If your plan is to put an existing website inside an app shell, consider what people will actually do in the app: a repackaged site risks rejection during Apple's review.
Local
What St. Petersburg businesses need from an app
Health care is among the city's largest industries. A clinic considering an app needs a clear booking flow, appointment reminders and a way to take payments, alongside a staff view of the day's schedule. These are useful tasks to put in front of staff when deciding what the first release must contain.
The Sundial shopping complex includes restaurants and retail shops. A shop or restaurant there serving repeat customers could use an app for reordering, loyalty and saved payment details. Keep checkout quick, and decide when a notification is useful to the customer before adding it to the flow.
The arts contribute to the region's tourism. For an arts organisation whose visitors already use its website frequently, an app can reuse the same accounts and data, giving visitors access to familiar information without creating a separate account.
Rules
What a United States app project needs to handle
For a state or local government app, the US accessibility rule calls for WCAG 2.1 Level AA. We plan the screens and testing against that standard, so accessibility is part of the build from the start.
Checkout needs to match what you sell. Apple and Google require their in-app purchase systems for digital goods and subscriptions, while physical goods and services need another payment method. Stripe is available to businesses in the United States; we set up the checkout route around the goods or services in your scope.
How it runs
How an app project runs with us
We work remotely over video calls, WhatsApp and shared project boards. India is 10h30m ahead of Eastern time in winter, and 1 hour less during daylight saving time. The shared board gives you a place to leave decisions and feedback between calls.
- 01
Discover
We learn about your business, audience and goals, then agree the scope with you. Bring the tasks people need to complete and the decisions your staff will need to make.
- 02
Design
We refine iOS and Android screens with your feedback before writing code. Put the clickable prototype in front of customers or staff; a screen is cheaper to change at this stage than after it has been built.
- 03
Build and test
We share test builds for your phone through TestFlight or Google Play testing tracks. Use them for the actual tasks you expect customers or staff to complete, and tell us where a flow is awkward.
- 04
Submit
We handle the store listings, submission and review under your own developer accounts. You retain access to those accounts while we work through the release.
Checklist
What to have ready before we talk
Write down the tasks users must complete in the first release, in the order they would do them.
- List your website, booking, CRM or payment systems, noting available APIs and who holds admin access.
- Start registering developer accounts in your company's name; organisation verification needs a D-U-N-S number.
- Check whether a new personal Google Play account needs a closed test before production release.
- Plan a working demo account and live backend for submission if the app has a login.
- Keep developer accounts, signing access and the code repository in your business's name.
Cost & time
What affects app development cost and time
The work grows with the systems and behaviour the app has to support.
Integrations
A booking system, payment gateway or hardware connection needs setup, testing and a way to handle failures.
Live features
Chat, tracking and presence need persistent connections and more backend work than screens that load data on request.
Screen design
Custom animation, extra languages and tablet layouts add design and testing across the screens they affect.
User content
Posts or other submissions need moderation flows, including reporting, blocking and published contact details for Apple's requirements.
Questions
Asked by businesses in St. Petersburg
Page updated 5 November 2026
How much does it cost to develop an app?
There is no fixed price: the scope determines the quote. A documented existing backend can reduce the work, while a new backend and admin panel add substantially to it. Offline editing and later synchronisation add more work than showing the last data loaded without a signal. Push notifications also need a sending service, delivery rules and user settings.
How do I choose an app development company?
Look for a team that discusses the complete user flow and how it will assess the first release. Ask how it will handle analytics and crash reporting, and whether people need to sign in before seeing useful content. Apps without significant account-based features should let people use them without a login.
What is included in the app build?
The work includes the app screens, a backend for accounts and data, and the tools needed to administer them. Staff may need to edit content, look up customers or block abusive accounts without calling a developer. We also build in-app purchases and subscriptions where they are part of the agreed scope.
Will I own the app code?
Yes. You own your code, content and domain, with no lock-in. That gives you control over the materials you need to maintain the product after launch. When agreeing the scope, make sure you know which content your staff will maintain and which work needs changes to the code.
What support is available after launch?
Ongoing support covers bug fixes, updates for new iOS and Android versions, and new features. We can also review how often people return, where they leave the main task and the crash-free rate. Some JavaScript and content fixes can use an over-the-air update; native code changes and new permissions still need a store release.
Tell us what you need
Sohail, Founder, replies within 1 working day (Mon–Sat, IST). Free and no obligation.