JJ Corner

Ullaallaa · com.ullaallaa.jjcorner

Not rated yet 1+ downloads v1.0.1 29.4 MB Android 5.0+ PEGI 3 · Everyone

Download APK 29.4 MB All versions

At a glance

Latest version: v1.0.1 (2)
Updated: Sep 16, 2025 (1 year ago)
APK size: 29.4 MB
Requires: Android 5.0+ (API 21)
CPU support: Any (no native code)
Category: Education (app)
Listed since: Sep 15, 2020 (at least)
Permissions: 10 (4 sensitive)
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

JJ Corner is an app by Ullaallaa in the Education category, listed since at least September 2020. It has no native code, so it runs on any Android processor.

It asks for 10 permissions, 4 of them sensitive, including read contacts, find accounts on the device and read shared storage.

What's new in v1.0.1

Initial Release

Description

From the listing uploaded by “catappult”.

JJ Corner App is a mobile application software is intended for both JJCET faculties and Students. About Ullaallaa Inc - https://bit.ly/32xFrml Copyrights © 2020 Little Princess Foundation, Ullaallaa Inc.

Security & authenticity

Security rating: Trusted

Signing certificate

Certificate with Google's generic name Google Play App Signing gives the keys it manages this name, but anyone can put it in a certificate, so this alone proves nothing.

Store checks and file details

Developer signature verified Nov 9, 2021
Antivirus scan result not available
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)56:E8:01:46:77:1B:4B:6E:E5:2D:74:6C:83:08:A8:82:2C:A1:6C:43
File MD565aa84d8a1f55e67064fd70e3a0d3787
Uploaded by “catappult” Platinum tier · 1,377 followers · uploading since 2018

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

Permissions (10)

JJ Corner requests 10 permissions, 4 of them sensitive.

Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Read contacts Sensitive android.permission.READ_CONTACTS
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
Full network access android.permission.INTERNET
Prevent the device from sleeping android.permission.WAKE_LOCK
Push messaging (app-defined) com.ullaallaa.jjcorner.permission.C2D_MESSAGE
Read profile android.permission.READ_PROFILE
Receive push notifications com.google.android.c2dm.permission.RECEIVE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait

JJ Corner APK: questions and answers

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

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the JJ Corner APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. After downloading, check that the file's MD5 is 65aa84d8a1f55e67064fd70e3a0d3787.