PumpSizer
v1.5 · 16.4 MB · code 6
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File information
UpdatedJun 9, 2024
PublishedMar 19, 2021
Packagecom.cybob.android.pumpsizer
Versionv1.5 (6)
Size16.4 MB
MD52aea4d96dbcca28b22e5ed11e795e68a
Min SDK24
Malware scanTRUSTED
Signature SHA146:58:3C:E8:67:9F:C6:19:5C:51:57:A0:B0:98:FF:81:F7:33:5C:C3
SignerCN=Martin Holke, O=cybob communication GmbH, L=Osnabrück, ST=Niedersachsen, C=DE
Total downloads1,000
This version1,000
Developercybob communication GmbH
Age ratingEveryone
What's new in v1.5
General adjustments
Security scan
TRUSTED
- Developer signature verified 2024-06-09
- Signature SHA1 46:58:3C:E8:67:9F:C6:19:5C:51:57:A0:B0:98:FF:81:F7:33:5C:C3
- File MD5 2aea4d96dbcca28b22e5ed11e795e68a
How to install PumpSizer v1.5 on Android 7.0 Nougat+
Takes about 2 minutes. You'll need roughly 16.4 MB of free storage.
- Grab com.cybob.android.pumpsizer_6.apk — hit the Download button above (16.4 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 2aea4d96dbcca28b…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.cybob.android.pumpsizer_6.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=Martin Holke, O=cybob communication GmbH, L=Osnabrück, ST=Niedersachsen, C=DE. 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 PumpSizer — tap Open on the install screen, or find the PumpSizer icon in your app drawer.
Common install errors for PumpSizer
- "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 7.0 Nougat 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.