Use Wi-Fi if you can. The app is a large download and mobile data can cut it off midway. If the download stops or fails, tap the download button again — it will resume where it stopped, not restart.
Allow installs from your browser. The first time you install, Android asks to allow your browser to install unknown apps. Tap Settings in that prompt, toggle Allow from this source, then install.
The Google Play Protect warning is normal. iSmile is not on the Play Store yet, so Android shows a scan warning. Tap More details → Install anyway. The app is safe.
"App not installed" at the end? That almost always means the download was cut short. Delete the partial file, connect to Wi-Fi, and download again in one go.
Updating from an old version? Uninstall the old iSmile first, then install fresh — you sign back in with your phone number, nothing is lost.
Follow these steps
1
Downloading… about 58 MB (47 MB on 32-bit phones). Watch the
progress bar in your notification panel — you don't need to do anything yet.
2
When it finishes, tap “Open” on the download notification
(ismile-latest.apk). First time only, your phone asks to
allow installs from your browser — allow it.
3
The iSmile installer opens — tap Install. That's all.
Tap Install above — the app downloads automatically.
When the download finishes, tap Open on the notification. The first time,
your phone asks permission to install from your browser — allow it (one time only).
The iSmile installer opens — tap Install and the app installs immediately.