Bellows Factor
v2.50 · 2.6 MB · code 250
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File information
UpdatedJun 5, 2024
PublishedAug 18, 2021
Packagecom.rdq.photocalc
Versionv2.50 (250)
Size2.6 MB
MD52f7a8408f3409d5aeb8c4eeb76c50a66
Min SDK21
Malware scanTRUSTED
Signature SHA17C:AF:1A:DE:63:D9:3E:33:CD:0C:AB:45:86:7C:C6:F3:1F:62:F0:B0
SignerO=rdq
Total downloads1,000
This version1,000
Developerrdq - smart productivity tools
Age ratingEveryone
What's new in v2.50
- Storage access permission removed
- Fixes & improvements
- Fixes & improvements
Security scan
TRUSTED
- Developer signature verified 2024-06-05
- Signature SHA1 7C:AF:1A:DE:63:D9:3E:33:CD:0C:AB:45:86:7C:C6:F3:1F:62:F0:B0
- File MD5 2f7a8408f3409d5aeb8c4eeb76c50a66
How to install Bellows Factor v2.50 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 2.6 MB of free storage.
- Grab com.rdq.photocalc_250.apk — hit the Download button above (2.6 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 2f7a8408f3409d5a…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.rdq.photocalc_250.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 O=rdq. 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 Bellows Factor — tap Open on the install screen, or find the Bellows Factor icon in your app drawer.
Common install errors for Bellows Factor
- "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 5.0 Lollipop 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.