Tumblebooks
v4.0.36 · 42 MB · code 437
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File information
UpdatedFeb 11, 2026
PublishedMay 16, 2023
Packagecom.perfectedtech.tumblebooks
Versionv4.0.36 (437)
Size42 MB
MD54e8ecffac0257aea048ef9c5a8a4c0e4
Min SDK19
ABIsx86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1EB:9C:E8:B9:B5:03:F4:F7:F9:08:32:AB:FF:90:BD:95:FE:A1:B0:04
SignerC=CA
Total downloads100,000
This version100,000
DeveloperTumbleweed Press Inc
Age ratingEveryone
What's new in v4.0.36
Updated release due to family policy
Security scan
TRUSTED
- Developer signature verified 2026-02-11
- Signature SHA1 EB:9C:E8:B9:B5:03:F4:F7:F9:08:32:AB:FF:90:BD:95:FE:A1:B0:04
- File MD5 4e8ecffac0257aea048ef9c5a8a4c0e4
How to install Tumblebooks v4.0.36 on Android 4.4 KitKat+
Takes about 2 minutes. You'll need roughly 42 MB of free storage.
- Grab com.perfectedtech.tumblebooks_437.apk — hit the Download button above (42 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 4e8ecffac0257aea…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.perfectedtech.tumblebooks_437.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 C=CA. 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 Tumblebooks — tap Open on the install screen, or find the Tumblebooks icon in your app drawer (this build targets x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for Tumblebooks
- "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 4.4 KitKat 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.
- Works on one phone but not another — this build ships x86-64/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.