Nautical Calculators
v4.8.5 · 46 MB · code 209
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File information
UpdatedMar 23, 2026
PublishedJul 12, 2021
Packagecom.vucongthe.naucal.plus
Versionv4.8.5 (209)
Size46 MB
MD5bb4c0745763833b63d1f03d11e5d4f61
Min SDK27
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1FC:83:AD:7A:ED:C8:03:DB:D9:7F:27:4B:D0:21:20:BD:A2:7A:3C:AA
SignerC=84
Total downloads10,000
This version10,000
DeveloperVu Cong The
Age ratingEveryone
What's new in v4.8.5
Improved:
+Additional Calculations (Distance by Vertical Angle);
+Nautical Maneuvering(Graphics);
+Location and Mapview;
+The Nautical Almanac (moon and the 2026 publication) ;
+Font and interfaces;
+Database for Celestial LOP.
+Plane Sailing and Traverse Sailing;
+Colregs(shapes and sound);
+Fixed bug in Plane Sailing section, thanks to Captain Noah Smith;
+Additional Calculations (Distance by Vertical Angle);
+Nautical Maneuvering(Graphics);
+Location and Mapview;
+The Nautical Almanac (moon and the 2026 publication) ;
+Font and interfaces;
+Database for Celestial LOP.
+Plane Sailing and Traverse Sailing;
+Colregs(shapes and sound);
+Fixed bug in Plane Sailing section, thanks to Captain Noah Smith;
Security scan
TRUSTED
- Developer signature verified 2026-03-23
- Signature SHA1 FC:83:AD:7A:ED:C8:03:DB:D9:7F:27:4B:D0:21:20:BD:A2:7A:3C:AA
- File MD5 bb4c0745763833b63d1f03d11e5d4f61
How to install Nautical Calculators v4.8.5 on Android API 27+
Takes about 2 minutes. You'll need roughly 46 MB of free storage.
- Grab com.vucongthe.naucal.plus_209.apk — hit the Download button above (46 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 bb4c0745763833b6…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.vucongthe.naucal.plus_209.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 C=84. 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 Nautical Calculators — tap Open on the install screen, or find the Nautical Calculators icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for Nautical Calculators
- "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 27 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/x86-64/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.