Design and build
Touch-friendly screens that work on small phones and large tablets, in portrait and landscape.
Mobile app development
Apps for the phone in your customer’s pocket
Android and Windows apps with sign-in, cloud data, payments and store releases. We build them, ship them and keep them updated.
What’s included
Everything an app needs to ship
Accounts and cloud data
Sign-in, profiles and data that syncs across devices with Firebase.
Purchases
In-app purchases through Google Play billing, or Stripe for web and desktop.
Store release
Google Play signing, listing, testing tracks and the data safety forms, handled for you.
One codebase, several platforms
We build apps in C# with Unity and .NET, so one codebase can ship to Android, Windows and the web. That keeps the cost of adding a platform down, and fixes land everywhere at once.
Behind the app we use proven cloud services: Firebase Authentication for sign-in, Cloud Firestore for live data, and server-side rules so users can only read and change what they’re allowed to.
Shipped, not just built
Our own app, Euchre Player’s Network, runs on Android and Windows and in the browser, with live online tables, friends and invites, chat moderation, rankings and in-app purchases. We sign the releases, run automated tests on every build, and handle the store process ourselves.
How it works
From idea to app store
- 01
Discover
We map your goals, users and existing tools, then agree on scope and budget in writing.
- 02
Design
Screens and data flows you can click through before any production code is written.
- 03
Build & integrate
Short cycles with working builds you can try, backed by automated tests.
- 04
Launch & support
Hosting, store releases, monitoring and updates after go-live, so it keeps working.
Mobile app development FAQ
Which platforms do you build for?
Android and Windows today, including Google Play releases, plus web versions that run in any browser. We plan apps so iOS can be added when you need it.
Do you handle the Google Play release?
Yes: signing, store listing, testing tracks, privacy and data safety forms, and in-app purchases through Google Play billing.
Can the app work offline?
Yes. Apps can keep working without a connection and sync when they’re back online. Our own euchre app plays complete games against bots offline.
Do I need a mobile app or a web app?
If people use it often, need it offline, or want notifications, an app is worth it. If it’s used occasionally, a web app is cheaper and needs no install. We’ll recommend one in your quote.
Can you add accounts, payments and online features?
Yes. Sign-in, cloud data, live updates between users, chat and in-app purchases are all things we’ve built and run in production.
Related services
More ways we can help
Custom software development
Software designed around your process, your data and your people.
Learn more →Web app development
Portals, dashboards and booking or ordering systems that run in any browser.
Learn more →Case study: Euchre Player’s Network
How we built a live multiplayer app with accounts, rankings and purchases.
Learn more →Start a project
Have an app idea?
Tell us the services you need, your time frame and your budget. You’ll get a written quote with scope, timeline and price.
Get a free quote
support@graystonedevelopmentstudios.com
Graystone Development Studios, LLC
Geneva, IL 60134
Geneva, IL 60134