Proj4
v1.1.23 · 2 MB · code 10123
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File information
UpdatedMay 18, 2024
PublishedFeb 16, 2021
Packagecom.topodroid.proj4
Versionv1.1.23 (10123)
Size2 MB
MD513d456f67626e0db7b9767d432b1adba
Min SDK8
ABIsx86-64, armeabi, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1DF:C1:71:48:6F:87:A8:C0:BE:E2:1D:F2:7F:B8:F2:4C:77:51:04:FA
SignerCN=marco corvi, OU=none, O=none, L=recco, ST=genova, C=it
Total downloads1,000
This version1,000
Developermarco.corvi
Age ratingEveryone
What's new in v1.1.23
Simplified the interface of the coordinates conversion for TopoDroid
Security scan
TRUSTED
- Developer signature verified 2024-05-18
- Signature SHA1 DF:C1:71:48:6F:87:A8:C0:BE:E2:1D:F2:7F:B8:F2:4C:77:51:04:FA
- File MD5 13d456f67626e0db7b9767d432b1adba
How to install Proj4 v1.1.23 on Android API 8+
Takes about 2 minutes. You'll need roughly 2 MB of free storage.
- Grab com.topodroid.proj4_10123.apk — hit the Download button above (2 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 13d456f67626e0db…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.topodroid.proj4_10123.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=marco corvi, OU=none, O=none, L=recco, ST=genova, C=it. 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 Proj4 — tap Open on the install screen, or find the Proj4 icon in your app drawer (this build targets x86-64/armeabi/armeabi-v7a/arm64-v8a devices).
Common install errors for Proj4
- "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 8 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 x86-64/armeabi/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.