How long to build a mobile app depends on what version one must do — not on a generic “3 months” promise. Use the ranges below by app type, then adjust for integrations, design depth and how fast you answer questions.
Direct answer
A focused MVP often takes roughly 8–16 weeks after discovery when design, platforms and a limited feature set are agreed. A simple companion app can be faster; marketplaces and multi-role products take longer. Complex enterprise apps are measured in multiple releases, not one big-bang date.
Timeline by app type
| App type | Typical duration after discovery | What is in version one |
|---|---|---|
| Companion / brochure app | ~4–8 weeks | Few screens, content, forms, optional push |
| MVP product app | ~8–16 weeks | Auth, one core journey, basic admin/API |
| eCommerce / booking app | ~12–20 weeks | Catalogue/slots, payments, orders |
| Marketplace / multi-role | ~4–9+ months | Two+ user types, matching, wallets/chat |
| Enterprise / regulated | Phased (months+) | SSO, audits, integrations, staged rollout |
Phase breakdown (typical MVP)
| Phase | Duration | What happens |
|---|---|---|
| Discovery | 1–2 weeks | Users, features, platforms, success criteria |
| UX/UI design | 2–4 weeks | Flows, screens, prototype review |
| Build | 4–10+ weeks | App + API + admin as needed |
| Test and launch | 1–3 weeks | QA, store assets, publishing |
What stretches the timeline
- Building Android and iOS as two fully separate native apps without a shared plan.
- Payments, maps, offline sync or complex role permissions.
- Waiting on content, legal copy or third-party API access.
- Changing scope every week without freezing an MVP.
How to go faster without cutting quality
- Ship an MVP that proves one core journey.
- Reuse an existing backend when you already have a web system.
- Decide store accounts and branding assets early.
- Agree a change process so new ideas become phase two.
Stack choice also affects calendar — see native vs cross-platform vs Flutter. For cost bands in India, read mobile app development cost in India.
Planning an app timeline? See mobile app development or request a timeline estimate.
