FREE APP BUILDER
Free App Builder — Build and Publish a Real App at No Cost
Updated July 23, 2026
What "free" actually means here
Your free build is a real app you install on your phone, not a preview locked inside another app. It carries the SaasToStore logo and opens your site with a thin address bar at the top: it's a test, made to show you the result. When you're ready to publish with your own logo and name, a one-time upgrade does it — no subscription required.
Build your free app in 3 steps
1. Paste your website or PWA URL
Any HTTPS URL works — built with a no-code tool or hand-coded.
2. Run the free build
We generate a test APK with the SaasToStore logo, no credit card needed.
3. Install it on your phone
Download the APK and test your app on any Android phone. Publishing needs a paid build.
Free vs paid — what changes
- Free: 1 Android test build (APK), SaasToStore logo
- SHIP (€39 one-time): your own logo on Android, iOS and desktop
- SHIP also covers 7 stores, 1,500 push notifications and 3 updates
- No subscription required — pay once, keep your artifacts
- SHIP: a keystore created at your first paid build, encrypted and reused for every update
Why most free app builders aren't really free
Most platforms advertising "free app builder" give you a preview that only runs inside their own app or a simulator. You can't download an installable file, you can't submit to a store, and the moment you want to do anything real, you hit a paywall. Some require a monthly subscription just to export. SaasToStore takes the opposite approach: your free build is a real Android test APK that you download and install on any Android phone, or send to a friend. It carries the SaasToStore logo and is made for testing: publishing on Google Play needs a paid build, which delivers the signed .aab Google Play asks for.
What your free build includes
- A test APK to install directly on any Android phone
- The SaasToStore logo as the app icon (your own logo comes with a paid build)
- Your app name and a valid package name (com.saastostore.yourapp)
- Signed with a temporary key: your app's real keystore comes with your first paid build
- AI-generated store description and screenshots
- 30-day download window for your build artifacts
When to upgrade — and when not to
If you're testing an idea, showing a prototype to a client, or building an internal tool for a small team, the free build may be all you need. Move to SHIP (€39) when you want your own logo and branding, desktop builds for Windows, macOS and Linux, publishing across 7 stores and push notifications to engage your users — it's a one-time payment, not a subscription. AGENCY (€79/month) is for studios shipping up to 10 apps for their clients.
Your keystore, kept safe for every update
When you run your first paid build, we generate a unique cryptographic keystore for your app and encrypt it with AES-256. This keystore is what Google Play uses to verify that updates come from the same publisher. We keep it safe and reuse it automatically for every update; its password is emailed to you once, with that first paid build. This means your users get seamless updates and you never lose publishing rights to your own app. The free test build is signed with a temporary key, so it never touches this keystore.
Related guides
Frequently asked questions
Is the free app builder really free?+
Yes. You get one Android test build at no cost and no credit card: an APK with the SaasToStore logo that you install on your phone to see your app. You only pay when you want to publish, with your own branding, desktop builds and more stores.
What are the limits of the free build?+
The free build is one Android test APK per account. It shows the SaasToStore logo and opens your site with a thin address bar. It gives no .aab and can't be published on Google Play: publishing needs a paid build.
Do I keep my app if I don't upgrade?+
Yes. The test APK keeps working on the phone where you installed it, and the file stays available to download for 30 days. Your app's keystore is only created with your first paid build.
Can I publish the free build to Google Play?+
No. The free build is a test APK signed with a temporary key, made to show you the result. A paid build delivers the signed .aab Google Play asks for, plus an APK. Google charges a one-time $25 developer fee on their side.
What does upgrading add?+
The signed files each store asks for (starting with the .aab for Google Play), your own logo and package name, desktop installers (Windows, macOS, Linux), publishing to 7 stores, and push notifications — all from one-time plans.
Is there a time limit on the free plan?+
There is no time limit on the free plan itself. Your test APK is available for 30 days to download. A free build has no keystore: your app's keystore is created and stored with your first paid build.
Can I use the free build for a commercial app?+
Not to publish it. The free build is a test APK with the SaasToStore logo and can't go on a store. SHIP (€39 one-time) gives you your own logo and the signed files each store asks for.
What happens to my app if SaasToStore shuts down?+
The files of a paid build, the signed .aab and the APK, are yours to download. They work independently of SaasToStore.
Build your app for free
Paste your URL and get a test app on your phone — no credit card.
Build free