How long does it take to develop an app? A 2026 timeline guide.
- Typical timelines
- Updated for 2026
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App timelines at a glance
These are typical end-to-end US studio timelines from discovery to launch, not a quote on the calendar. Where your project lands depends on the drivers covered below. Going cross-platform with React Native or Flutter shortens a dual-OS timeline versus building two separate native apps, and remember that App Store reviewis its own step - usually a day to two weeks - that sits between “done” and “live.”
| App complexity | Typical timeline |
|---|---|
| Simple app / MVPCore features, few screens | 2 - 4 months |
| Medium-complexity appCustom backend, integrations | 4 - 7 months |
| Complex appReal-time, AI, scale | 7 - 12 months+ |
| Cross-platform (both OS)One codebase | shortens dual-OS |
| App Store reviewApple / Google approval | 1 day - 2 weeks |
Source: 2026 typical US studio app delivery timelines
The phases of an app project
Discovery and specs(about 2 to 4 weeks) is where you decide what you’re actually building. UX and UI design (3 to 6 weeks) turns that into screens and a real flow. Development is the bulk of the timeline and runs in sprints, with working builds you can try along the way. QA and device testing (2 to 4 weeks) overlaps the later sprints rather than waiting for the end. Finally, App Store review and launch take a few days to about two weeks before the app is live.
- Discovery & specs - 2 to 4 weeks
- UX / UI design - 3 to 6 weeks
- Development in sprints - the bulk of the timeline
- QA & device testing - 2 to 4 weeks, overlaps development
- App Store review - a few days to ~2 weeks
- Launch & first release
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What affects the timeline
Backend complexity is the biggest driver: a thin app on top of a simple data store moves fast, while a custom backend with accounts, real-time sync, or AI is real, separate work. Third-party integrations - payments, maps, messaging, analytics - each add their own surface to wire up and test. Design iteration stretches the timeline when the look and flow are still being figured out mid-build, which is why discovery up front pays off.
App Store review sits outside your control and can add a day or two weeks, and a rejection resets that clock. Scope changes - new features added once development is underway - are the most common reason a date slips. Finally, choosing cross-platform over two native apps shortens a dual-OS launch, since one codebase serves both platforms instead of two teams building twice.
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Common questions
It depends on complexity. A simple app or MVP - core features and a handful of screens - typically takes 2 to 4 months. A medium-complexity app with a custom backend and a few integrations runs 4 to 7 months. A complex app with a custom backend, real-time features, AI, or scale needs usually takes 7 to 12 months or more. These are typical end-to-end timelines from discovery to launch, not a guarantee for your specific build.
A typical app moves through five phases. Discovery and specs (about 2 to 4 weeks) nails down what you're building. UX and UI design (3 to 6 weeks) turns that into screens. Development is the bulk of the timeline and runs in sprints. QA and device testing (2 to 4 weeks) overlaps the later sprints. App Store review and launch take a few days to about 2 weeks. The phases overlap rather than running strictly one after another.
An MVP is deliberately scoped to the core flow so you can ship and learn fast - that's why it lands in the 2 to 4 month band. A full app adds more screens, deeper functionality, a richer backend, and more edge cases to test, which pushes it into the 4 to 7 month range or beyond. Starting with an MVP and growing it in later releases is usually the faster, lower-risk path to a real product.
For a dual-platform launch, usually yes. Building two native apps (Swift for iOS, Kotlin for Android) means two codebases. A cross-platform framework like React Native or Flutter lets one codebase serve both, which shortens a dual-OS timeline. The trade-off is that some deeply platform-specific or performance-critical work can still need native code. For a single platform, native and cross-platform timelines are much closer.
Apple's App Store review and Google Play review typically take anywhere from a day to about two weeks. Most submissions clear in a few days, but a rejection - for a metadata issue, a policy question, or a bug - resets the clock for the resubmission. We plan for review as its own line item rather than assuming an instant approval, so it doesn't surprise the launch date.
Sometimes, yes - by tightening scope to a true MVP, parallelizing design and development, or adding people to the team. Cutting scope is the cleanest lever and often costs less. Adding people or compressing the timeline usually costs more and has limits, since some work is sequential. The honest answer for your build comes from a scoped plan, not a generic number - tell us what you're building at /start and we'll map a realistic timeline.