OCA v10.3.30

APK · 74.4 MB · version code 1430706963 · Android 5.1+ · uploaded Nov 3, 2023

MD5 31305ca6e97ad6314e257b1fcba4a56c TRUSTED

  • Signature matches the Google Play version Details

Quick check before downloading

Answer this to unlock the download. It keeps automated downloaders away.

Compared with the latest version

The latest version is v10.3.36, uploaded Nov 24, 2025 — about 2 years after this one.

  • Size: this file is 74.4 MB; the latest is 81.8 MB (7.4 MB larger).
  • Android: this version needs Android 5.1+; the latest needs Android 7.0+. Use this one if your device runs an older Android release.
  • The latest version asks for 3 more permissions: Location in the background, Foreground service location, Internal broadcast protection (app-defined).
  • The latest version no longer asks for: Read shared storage, Schedule exact alarms, Modify shared storage, Google Play install referrer, Advertising ID.

File information

Version
v10.3.30 (1430706963)
Uploaded
Nov 3, 2023
Size
74.4 MB
Requires
Android 5.1+ (API 22)
CPU support
x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit
Screen
Small screens and larger
MD5
31305ca6e97ad6314e257b1fcba4a56c
Signing certificate (SHA-1)
41:9A:1D:FE:8C:1A:9A:46:55:08:44:B3:99:5B:82:57:81:4A:30:5B
Signed by
O=Noggin
File name
com-noggin-oca-1430706963-66326538-31305ca6e97ad6314e257b1fcba4a56c.apk
Package
com.noggin.oca
Downloads (all versions)
5K+
Age rating
PEGI 3 · Everyone

What's new in v10.3.30

Update Android API target, remove REQUEST_INSTALL_PACKAGES permission

Permissions (41)

This version requests 41 permissions, 9 of them sensitive.

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Nov 3, 2023.
  • Certificate issued to “Noggin” This is the certificate of the Google Play version.
  • Same certificate as the 3 other versions checked

Store checks

  • Developer signature verified Nov 3, 2023
  • Validated against Google Play Nov 3, 2023
  • Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (3 other versions compared). AAPKs doesn't scan files itself.

How to install OCA on Android 5.1+

You'll need about 148.9 MB of free space.

  1. Download the APK — tap Download APK above (74.4 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
  2. Open the file — tap the download notification, or open Files › Downloads and tap com-noggin-oca-1430706963-66326538-31305ca6e97ad6314e257b1fcba4a56c.apk.
  3. Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
  4. Check the file (optional) — the MD5 of the downloaded file should be 31305ca6e97ad6314e257b1fcba4a56c. If it differs, the file is damaged or was changed: delete it and download again.
  5. Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
  6. Open OCA — tap Open on the install screen, or find it in your app drawer.
Common install problems
  • “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
  • “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 5.1+). Download it again, or pick an older version.
  • “App not compatible with your device” — this build contains native code for x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit only. Devices with other processors can't install it.
  • Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.

Other versions (4)

Back to all versions