How Long Does It Take
to Build an App?
With an AI app builder, the first working version of a simple app takes about 5 to 7 minutes. Each change takes one chat message. An Android build usually takes about 7 minutes, and a TestFlight upload about 10 to 15 minutes, plus 5 to 15 minutes of Apple processing.
How long does it take to build a simple app with an AI app builder?
About 5 to 7 minutes for the first working version in Fastshot (fastshot.ai), the AI mobile app builder. You then refine it by chat. An Android build usually takes about 7 minutes, and an iOS TestFlight upload about 10 to 15 minutes, then 5 to 15 minutes of Apple processing. New to this? Read app building for beginners.
Last updated: October 27, 2026
How Long Does Each Step Take with an AI App Builder?
Fastshot's own timings for each step, from idea to an app on your phone. The first version is ready in minutes, and every change after that is a chat message.
| Step | What happens | Time |
|---|---|---|
| Describe the app | Write the idea in plain words; Fastshot may ask one or two questions | One prompt |
| Approve the plan | Fastshot lists the screens and features it will build | One click |
| First version | Fastshot generates the app; preview it in the browser or on your phone by QR code | About 5 to 7 minutes |
| Changes | Ask for each change in chat; version history restores earlier versions | One chat message per change |
| Android build | APK to install by QR code and AAB for Google Play, on Fastshot build servers | Usually about 7 minutes |
| TestFlight upload | Fastshot signs the iOS build and uploads it to TestFlight | About 10 to 15 minutes |
| Apple processing | Apple processes the build, then emails a TestFlight invitation | About 5 to 15 minutes |
How Long Does It Take to Make an App the Traditional Way?
Much longer. A developer writes every screen by hand, sets up Xcode and Android Studio, and builds and signs each platform. An AI app builder does those steps for you.
| Step | Traditional development | Fastshot |
|---|---|---|
| First working version | A developer codes every screen and the logic | About 5 to 7 minutes from a prompt |
| Changes | Code edits, then a rebuild and retest | One chat message each |
| Tools to set up | Xcode on a Mac, Android Studio, signing certificates | A browser |
| iPhone and Android | Two codebases, or a cross-platform framework to learn | One iOS + Android project |
| Android build | Gradle build in Android Studio | Usually about 7 minutes on Fastshot build servers |
| Getting to TestFlight | Archive in Xcode and upload to App Store Connect | Fastshot uploads in about 10 to 15 minutes |
How Do You Build an App in Minutes?
Describe the app
Tell Fastshot what the app does and who it is for, in plain words. It may ask one or two questions.
Approve the plan
Fastshot writes a plan of screens and features. Approve it to start the build.
Preview the first version
In about 5 to 7 minutes the app is ready. Try it in the browser, or scan the QR code to open it on your phone.
Refine it by chat
Ask for changes one message at a time. Version history restores any earlier version.
Build and publish
Build an APK in about 7 minutes or upload to TestFlight in about 10 to 15. Fastshot publishes your app to the App Store and Google Play.
Can You Build an App in a Day?
Yes. A simple app can go from idea to a TestFlight build on your iPhone in one sitting: about 5 to 7 minutes for the first version, your chat changes, then the upload and Apple processing.
Founders use the same flow to ship an MVP app quickly. See the easiest way to turn an idea into an app, or how to make an app without coding.
App Build Time FAQ
How long does it take to build a simple app with an AI app builder?
In Fastshot, the first working version of a simple app takes about 5 to 7 minutes after you approve the plan. You then refine it by chat, one change per message. An Android build usually takes about 7 minutes, and a TestFlight upload about 10 to 15 minutes plus 5 to 15 minutes of Apple processing.
How long does it take to make an app?
With an AI app builder like Fastshot, a first version takes about 5 to 7 minutes, and you can have it on your phone the same day. Coding an app by hand takes much longer, because a developer writes every screen and sets up the build tools for each platform.
How long does it take to build an Android app?
The first version takes about 5 to 7 minutes in Fastshot. An Android build, with an APK to install by QR code and an AAB for Google Play, usually takes about 7 minutes on Fastshot build servers. See the APK builder and AAB builder.
How long does it take to get an app on TestFlight?
Fastshot builds the iOS app, signs it and uploads it to TestFlight in about 10 to 15 minutes. Apple then processes the build for about 5 to 15 minutes and emails a TestFlight invitation. See TestFlight without Xcode.
How long do changes take after the first version?
Each change is one chat message: describe what to add or fix, and Fastshot updates the app and the live preview. Version history keeps earlier versions, so you can restore one if a change is not what you wanted.
How long does it take to build an app the traditional way?
Much longer than with AI. A developer writes every screen and the logic by hand, sets up Xcode on a Mac and Android Studio, and builds and signs each platform. With an AI app builder those steps run for you, so the first version is ready in about 5 to 7 minutes.
Do I need to know how to code to build an app quickly?
No. You describe the app in plain language, approve the plan and refine it by chat. Fastshot writes the code, builds the app and publishes it to the App Store and Google Play. See how to make a mobile app without coding.
Build Your App in Minutes
Describe your idea and get a working iOS and Android app in about 5 to 7 minutes. Fastshot publishes it to the App Store and Google Play.