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take it with you
Full platform as a phone app — install from your browser or download the signed APK. Free, no signup.
take it with you
Full platform as a phone app. Free, no signup.
On an Android phone with Chrome/Edge? Open browser menu → “Install app”(or “Add to Home screen”) — that's the full app, same install, auto-updates.
This installs the exact same app as the APK below — but it updates itself automatically and never triggers “unknown sources” warnings. Browser on a desktop? Scan the QR in the footer instead.
For phones where you prefer sideloading (works on any Android 8+):
Verify it's authentic — the signed package certificate (SHA-256):
1F:E5:2A:CC:EE:AB:B0:F5:B5:28:D9:A1:75:A1:4A:8A:FC:F7:E0:65:03:7A:F8:E0:29:6C:7E:81:09:FD:1B:E2Everything is free to practice — no signup needed. Prefer the full keyboard? Use it right in the browser.
Is the APK safe?
It's the official SqlInt package signed with our released key (fingerprint above). It only connects to sqlint.com — no ads, no analytics on-device tracking, no third-party SDKs in the package.
How will I get updates?
Browser-installed users update automatically. The APK file at this URL is replaced whenever a new version ships — just re-download and install it over the old one; your progress stays.
Do I need internet?
Not after first launch — the shell and your recent pages load offline; new questions and puzzles stream in when you're back online.
iPhone?
Not a separate app — open sqlint.com in Safari and use Share → Add to Home Screen for the same full-screen experience.