Cool Reader GL
v3.3.75 · 4.7 MB · code 75
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File information
UpdatedJun 7, 2024
PublishedNov 9, 2022
Packageorg.coolreader.newui
Versionv3.3.75 (75)
Size4.7 MB
MD54a30c0b4053859248d4c0058d393205e
Min SDK7
ABIsx86-64
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 downloads500,000
This version500,000
DeveloperVadim Lopatin
Age ratingEveryone
What's new in v3.3.75
Fast book reopening
Dictionaries support
Switch to previous book action in menu and tap zone
Table of Contents current position fix
External .ttf fonts from SD/fonts or SD/.cr3/fonts can be used
External .png or .jpeg backgrounds from SD/.cr3/backgrounds can be used
Dictionaries support
Switch to previous book action in menu and tap zone
Table of Contents current position fix
External .ttf fonts from SD/fonts or SD/.cr3/fonts can be used
External .png or .jpeg backgrounds from SD/.cr3/backgrounds can be used
Security scan
TRUSTED
- Developer signature verified 2024-06-07
- Signature SHA1 59:40:E0:EA:C5:E5:02:2B:C9:04:FE:58:A2:0D:02:9B:C2:4C:59:3B
- File MD5 4a30c0b4053859248d4c0058d393205e
How to install Cool Reader GL v3.3.75 on Android API 7+
Takes about 2 minutes. You'll need roughly 4.7 MB of free storage.
- Grab org.coolreader.newui_75.apk — hit the Download button above (4.7 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 4a30c0b405385924…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find org.coolreader.newui_75.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 GL — tap Open on the install screen, or find the Cool Reader GL icon in your app drawer (this build targets x86-64 devices).
Common install errors for Cool Reader GL
- "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 7 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.