The Sentry
v2.1.7 · 19 MB · code 240
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File information
UpdatedApr 23, 2026
PublishedMar 11, 2021
Packageuk.co.thesentry.sentry
Versionv2.1.7 (240)
Size19 MB
MD5c5725d6dcb4a388ab9f8da657799048c
Min SDK26
Malware scanTRUSTED
Signature SHA12A:81:04:1C:36:76:58:5A:8A:31:BD:E7:BF:B8:57:A9:68:EE:CD:7A
SignerCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Total downloads100
This version100
DeveloperSAJEvans
Age ratingEveryone
What's new in v2.1.7
Performance updates
Security scan
TRUSTED
- Developer signature verified 2026-04-23
- Signature SHA1 2A:81:04:1C:36:76:58:5A:8A:31:BD:E7:BF:B8:57:A9:68:EE:CD:7A
- File MD5 c5725d6dcb4a388ab9f8da657799048c
How to install The Sentry v2.1.7 on Android 8.0 Oreo+
Takes about 2 minutes. You'll need roughly 19 MB of free storage.
- Grab uk.co.thesentry.sentry_240.apk — hit the Download button above (19 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches c5725d6dcb4a388a…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find uk.co.thesentry.sentry_240.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open The Sentry — tap Open on the install screen, or find the The Sentry icon in your app drawer.
Common install errors for The Sentry
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 8.0 Oreo or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.