Mobile app developers for Seattle businesses
Get an app for your Seattle customers or staff, with screens designed for iOS and Android, a backend for accounts and data, and store listings ready for submission. We handle the design, development and launch as a connected piece of work, so you can agree the scope with us and follow the same team from the first screens through to release.
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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
- 0+Years building for the web
- 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 choose native or cross-platform development?
Cross-platform development shares most of the code between iOS and Android. It fits apps built around accounts, forms, lists, maps, bookings, payments or content. For a product with those needs, a shared codebase gives you a single base to maintain while still covering both platforms. We usually use React Native and add native modules where a particular feature needs them.
Native development uses Swift for iPhone and Kotlin for Android. It suits an app built around deep device features, heavy graphics, complex background work or new platform features at launch. The trade-off is maintaining two codebases. That means considering the work on each platform when you plan changes after release.
Start with what people need to do in the app, then look at the device features those tasks require. A React Native build gives you a shared codebase with native modules where needed; a fully native approach gives you separate platform builds. The choice affects what your team maintains as the product changes.
Local
What Seattle businesses need from an app
Seattle has internet and technology companies, alongside industrial, service, design and clean technology firms. If your customers already use your web platform frequently, an app can give them another way to use the same accounts and data. A shared backend keeps those records in one place for the app, website and staff tools.
Seattle is also home to companies including Starbucks and Nordstrom. For a shop or restaurant serving repeat customers, useful app features include reordering, loyalty and saved payment details. A fast checkout and notifications sent at an appropriate moment give customers a clear route back to an order.
Rules
What a United States app project has to handle
If you are commissioning an app for a state or local government organisation, the accessibility requirement changes the screen design and checks. The applicable rule requires mobile apps to meet WCAG 2.1 Level AA. We design the app screens against that standard and include accessibility checks in the work, so those requirements are considered during the build.
For an appointment business, the app needs more than a booking screen: reminders, payments and a staff view of the day's schedule all need to work together.
How it runs
How a mobile app project runs with us
We are MSH Technologies, a studio in India, and we work remotely over video calls, WhatsApp and shared project boards. India is 13h30m ahead of Pacific time in winter, and 1 hour less during daylight saving time. The shared board gives you a place to follow the work and leave feedback across that difference.
- 01
Discover
We learn about your business, audience and goals. You help us agree what belongs in the scope.
- 02
Design
We prepare iOS and Android screens and refine them with your feedback before writing code. You can review the flows while changes are still on the screen designs.
- 03
Test the prototype
Put the clickable design in front of a few customers or staff. Their feedback can reveal changes while screens are cheaper to alter than built features.
- 04
Prepare submission
If the app has a login, provide a working demo account and a live backend for Apple's review. Leave room in the launch plan for a fix and resubmission.
- 05
Release
We handle the store listings, submission and review under your own developer accounts. You retain those accounts.
Checklist
What to have ready before we talk
Bring enough detail to make the first release and its connections clear.
- List what users must do in the first release, in the order they will do it.
- Note the website, booking system, CRM or payment provider involved, including API availability and who holds admin access.
- If you have a new personal Google Play developer account, plan for the required closed test before production release.
- Have a privacy policy that matches the data the app collects; Apple requires a link in the listing and inside the app.
- Decide if users will create accounts. If they do, the app needs a way to start account deletion inside it.
Cost & time
What affects the cost and timeline of an app?
The scope determines how much design, backend work and testing the project needs.
User roles
Customers, drivers and staff each need their own screens and permissions, even with a shared backend.
Live features
Tracking, chat and presence need persistent connections and more backend work than data loaded on request.
Screen variations
Custom animation, additional languages, right-to-left scripts and tablet layouts add design and testing across screens.
User-generated content
Moderation needs filtering, reporting, user blocking and published contact details for Apple's requirements.
Avoid
Mistakes to avoid when building an app
Asking for sign-up too early
Let people see value before requiring an account. Apple asks apps without significant account-based features to allow use without login.
Requesting notification permission at launch
Ask when the benefit is clear, such as after an order. On Android 13 and later, notifications stay off until the user allows them.
Adding an SDK without updating privacy answers
Check that Google Play's Data safety form covers data collected by third-party analytics or advertising tools in the app.
Questions
Asked by businesses in Seattle
Page updated 5 November 2026
How much does it cost to develop an app?
There is no fixed price: the scope determines the work. Each connection to a payment gateway, booking system or hardware adds setup, testing and failure handling. Offline editing also needs more work than showing previously loaded data, because changes must sync and conflicts need handling. We can discuss a quote once the scope is agreed.
How do I choose an app development company?
Choose a company that can explain how the app will fit the systems you already use and how you will assess it after release. Ask about a shared backend for your website, app and admin tools. Also ask how the team would track retention, task drop-off and the crash-free rate.
How do React Native and Flutter differ?
React Native renders each platform's interface components and uses JavaScript or TypeScript, which lets web developers contribute. Flutter uses Dart and draws its own interface, which suits a heavily branded, custom-designed app where screens need to look identical across platforms. Your choice also affects the skills needed to maintain the app.
What should be included in the first app release?
Plan for the app, the backend and the staff tools needed to operate it. An admin panel can let staff edit content, look up customers, issue refunds or block abusive accounts. Include analytics and crash reporting from the first release, so you can see screen use, drop-off points and device crashes.
Will I own the app and its code?
You own your code, content and domain, with no lock-in. Keep the developer accounts, signing access and code repositories in your business's name as well. That makes it easier to move the app later if you decide to change who maintains or develops it.
What support does an app need after launch?
After launch, support covers bug fixes, updates for new iOS and Android versions, and new features. Some JavaScript and content fixes can be sent with an over-the-air tool such as Expo EAS Update. Native code changes, new permissions and Expo SDK upgrades still need a store release.
Tell us what you need
Sohail, Founder, replies within 1 working day (Mon–Sat, IST). Free and no obligation.
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