Download the APK
On the Android phone, open itellapp.com/download and tap Download APK.
iTell's Android app comes from our website, not from a store, so Android asks a few extra questions. Here's every screen you might see and what to tap.
Only install iTell downloaded from itellapp.com. On the download page, open “Check that the file is ours” and compare the SHA-256. Never install an iTell file someone sent you in a chat.
Most phones need only this.
On the Android phone, open itellapp.com/download and tap Download APK.
Tap the finished download in the notification, or open it from Files → Downloads.
If Android says it isn't allowed to install unknown apps from this source, tap Settings, switch on “Allow from this source”, then go back.
Then open iTell. Its setup takes it from there.
“App scan recommended” or “Unsafe app blocked”, with a More details link.
The warning folds out and shows more options.
The name differs a little between Android versions. iTell then installs normally.
“App blocked to protect your device”, with only a Got it button. In some countries Google does this to any app from outside a store that asks for SMS access. Only in that case:
Open the Play Store, tap your profile picture at the top, then Play Protect, then the gear icon at the top.
Confirm with Turn off.
Open the APK again from Downloads and tap Install, as in part 1.
Go back to Play Store → profile → Play Protect → gear and switch “Scan apps with Play Protect” on again.
One UI 6 and later have one more lock.
If Samsung says Auto Blocker stopped the install, open Settings → Security and privacy → Auto Blocker and switch it off for now. Install iTell, then switch it back on.
Write to support@itellapp.com with a screenshot of what you see. A real person on our team answers.
Next: set up the Android phone