Cool Reader
v3.2.55-1 · 12.7 MB · code 32556
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File information
UpdatedNov 3, 2023
PublishedJul 26, 2020
Packageorg.coolreader
Versionv3.2.55-1 (32556)
Size12.7 MB
MD5dedc861f67b3e569743680b346bdb694
Min SDK4
ABIsarm64-v8a
Malware scanTRUSTED
Signature SHA159:40:E0:EA:C5:E5:02:2B:C9:04:FE:58:A2:0D:02:9B:C2:4C:59:3B
SignerCN=Vadim Lopatin, OU=development, O=coolreader.org, L=Nizhny Novgorod, ST=Nizhny Novgorod, C=RU
Total downloads10,000,000
This version10,000,000
DeveloperVadim Lopatin
Age ratingEveryone
What's new in v3.2.55-1
Text-to-speech improvements.
Cloud synchronization fixes.
Stability fixes.
Onyx e-ink readers support.
Cloud synchronization fixes.
Stability fixes.
Onyx e-ink readers support.
Security scan
TRUSTED
- Developer signature verified 2023-11-03
- Signature SHA1 59:40:E0:EA:C5:E5:02:2B:C9:04:FE:58:A2:0D:02:9B:C2:4C:59:3B
- File MD5 dedc861f67b3e569743680b346bdb694
How to install Cool Reader v3.2.55-1 on Android API 4+
Takes about 2 minutes. You'll need roughly 12.7 MB of free storage.
- Grab org.coolreader_32556.apk — hit the Download button above (12.7 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 dedc861f67b3e569…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find org.coolreader_32556.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=Vadim Lopatin, OU=development, O=coolreader.org, L=Nizhny Novgorod, ST=Nizhny Novgorod, C=RU. 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 Cool Reader — tap Open on the install screen, or find the Cool Reader icon in your app drawer (this build targets arm64-v8a devices).
Common install errors for Cool Reader
- "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 API 4 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 arm64-v8a native code. Devices with a different CPU will reject it.