COLREGs Lights & shapes app icon

COLREGs Lights & shapes

ColRegs rules 20 to 31 and annex II

madeof.blue · com.xf.ripam

Not rated yet 100K+ downloads v7.1 37.8 MB Android 5.0+ PEGI 3 · Everyone

Download APK 37.8 MB All versions
  • Signature matches the Google Play version Details

At a glance

Latest version
v7.1 (71)
Updated
Nov 12, 2025 (11 months ago)
APK size
37.8 MB
Requires
Android 5.0+ (API 21)
CPU support
Any (no native code)
Graphics
OpenGL ES 2.0+
Category
Education (app)
Listed since
Feb 19, 2021 (at least)
Permissions
11 (2 sensitive)
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

COLREGs Lights & shapes is an app by madeof.blue in the Education category, listed since at least February 2021. It has no native code, so it runs on any Android processor.

It asks for 11 permissions, 2 of them sensitive: read shared storage and modify shared storage. It asks for the same permissions as version 6.9. The app offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

Description

From the listing uploaded by “appupdater”.

The app, features a light and shapes visual search engine, a thematic rule reference, and provides revision tests as well as a 3D rendering for Colreg rules 20 to 31. For each rule, you can change the observation point on the 3D rendering view by a touch/drag action. The visual search engine gives you the ability to find any Colreg rule in seconds. The app is free with premium content, ad-free, and does not require an internet connection.

Version history

3 versions are listed, going back to v6.5.

v7.1 LATEST Nov 12, 2025 37.8 MB TRUSTED v6.9 Nov 19, 2024 37.8 MB TRUSTED v6.5 Jun 25, 2024 37.8 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Nov 12, 2025.
  • Certificate issued to “x” This is the certificate of the Google Play version.
  • Same certificate as the 2 other versions checked

Store checks and file details

  • Developer signature verified Nov 12, 2025
  • Validated against Google Play Nov 12, 2025
  • Signed byCN=x, OU=x, O=x, L=x, ST=x, C=x
  • Signing certificate (SHA-1)28:9D:10:AB:56:24:0F:1A:F3:94:DB:05:98:D8:A5:BF:A9:B5:FA:5B
  • File MD5aa53350d1232c0667d190caf02b15024
  • Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (11)

COLREGs Lights & shapes requests 11 permissions, 2 of them sensitive.

Required hardware & features

COLREGs Lights & shapes APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is COLREGs Lights & shapes free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the COLREGs Lights & shapes APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is aa53350d1232c0667d190caf02b15024.

Tags

ripam education lights shapes vessels

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