Number System: Learn & Convert
v2.6 · 4.5 MB · code 17
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File information
UpdatedSep 24, 2024
PublishedApr 22, 2021
Packagecom.rocky.numbersystemforstudent
Versionv2.6 (17)
Size4.5 MB
MD5dbf919899aa08846291000dc5b6ca9e3
Min SDK21
Malware scanTRUSTED
Signature SHA1E8:C6:92:B9:4F:4D:35:73:7A:45:48:2A:CD:BA:1E:1C:9C:71:5B:1A
SignerCN=rocky das, OU=android, O=01736066474, L=brahmanbaria, ST=east paikpara, C=BD
Total downloads100,000
This version100,000
DeveloperRocky Das
Age ratingEveryone
What's new in v2.6
** Supported Android Version 14+
** Remove Exit Dialog
** Optimized function & better experience
** Remove Exit Dialog
** Optimized function & better experience
Security scan
TRUSTED
- Developer signature verified 2024-09-24
- Signature SHA1 E8:C6:92:B9:4F:4D:35:73:7A:45:48:2A:CD:BA:1E:1C:9C:71:5B:1A
- File MD5 dbf919899aa08846291000dc5b6ca9e3
How to install Number System: Learn & Convert v2.6 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 4.5 MB of free storage.
- Grab com.rocky.numbersystemforstudent_17.apk — hit the Download button above (4.5 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 dbf919899aa08846…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.rocky.numbersystemforstudent_17.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=rocky das, OU=android, O=01736066474, L=brahmanbaria, ST=east paikpara, C=BD. 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 Number System: Learn & Convert — tap Open on the install screen, or find the Number System: Learn & Convert icon in your app drawer.
Common install errors for Number System: Learn & Convert
- "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.