The app development cost calculator on shrabon.net gives a ballpark budget and timeline in under a minute. It is built for Flutter projects shipping to both iOS and Android. This guide explains how to use it effectively — and what the numbers mean.
Step 1: Count your screens
A "screen" is a distinct view — login, home feed, profile, settings each count. Modals and simple dialogs usually do not. When unsure, count user-facing states you designed in Figma. The slider ranges from 1 to 25; most MVPs land between 5 and 12.
Base pricing assumes each screen includes layout, navigation hooks, and basic polish — not empty placeholders.
Step 2: Select features
Toggle chips for capabilities beyond static screens:
- User accounts: Registration, login, profiles
- Payments: Stripe, IAP, or checkout flows
- Maps & location: GPS, pins, optional routing
- Chat / messaging: Real-time or async messaging
- Push notifications: FCM/APNs integration
- Works offline: Local cache or sync
- AI features: LLM or ML integrations
- Admin dashboard: Operator-facing web or in-app tools
Select only what version one needs — the total updates live as you click.
Step 3: Backend and web toggles
Needs a server / backend: Enable if data persists across users/devices, you need auth server-side, or admin tools manage content. Adds API design, hosting, and security work.
Also a web version: Enable if you need a browser client alongside mobile — marketing site alone does not count; this is a functional web app.
Reading the estimate
The calculator shows a range (low–high) reflecting scope uncertainty and testing/polish variance. Timeline estimates assume one experienced Flutter developer, weekly feedback, and reasonable scope stability — not a committee approving every pixel.
It is a starting point for conversation, not a binding quote. Complex integrations, custom animations, or regulatory compliance may sit outside the model.
Next step: get a scoped quote
Click "Get a detailed quote" to email a pre-filled summary of your selections. Add a paragraph about your idea — I respond with clarifying questions and a fixed-price scope when we are a fit.
For deeper pricing context, read How much does a Flutter app cost in 2026?