Safety update for your funds: the fee you type is now capped, so a slip of a digit can no longer hand your coins to a miner — a sweep can never pay more than 5% of what it sweeps. Addresses are checked for real now (not just their shape) when you send, when you follow an address and when you buy, so a typo that keeps the right length no longer passes.
Install AppVerifier (open-source), open it, pick PyBLØCK and confirm it shows this SHA-256 certificate fingerprint. Unlike the file hash below, the signing certificate is identical across every PyBLØCK release — it’s the strongest sideload check.
Open the file. Android will ask to allow “Install unknown apps” for your browser/files app — enable it (Settings → Apps → Special access → Install unknown apps).
Verify the hash (optional but recommended): the APK’s SHA-256 must match the one above.
On a PC: sha256sum pyblock-1.1.21.apk.
Tap Install. Open PyBLØCK. Done — your node, your keys.
Updates are checked in-app. No store account, no tracking, no commission.