
At a glance
- Latest version
- v1.2.4 (27)
- Updated
- Jan 27, 2026 (8 months ago)
- APK size
- 12.7 MB
- Requires
- Android 6.0+ (API 23)
- CPU support
- x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
- Category
- Business (app)
- Listed since
- Oct 26, 2020 (at least)
- Permissions
- 45 (12 sensitive)
- Website
- ajnet.co.kr
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
AJ 그룹웨어 is an app by AJ IT센터 in the Business category, listed since at least October 2020. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.
Since version 1.2.2, the minimum Android version rose from 4.1 to 6.0. It asks for 45 permissions, 12 of them sensitive, including camera, read contacts and call phone. It asks for the same permissions as version 1.2.3.
What's new in v1.2.4
Description
From the listing uploaded by “appupdater”.
Version history
3 versions are listed, going back to v1.2.2. Since v1.2.4 it requires Android 6.0+.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jan 27, 2026.
- Certificate issued to “IT CENTER” 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 Jan 27, 2026
- Validated against Google Play Jan 27, 2026
- Signed byCN=ALPHA, OU=center, O=IT CENTER, L=Songpa_gu, ST=SEOUL, C=ko
- Signing certificate (SHA-1)E8:48:F6:E1:50:A8:8E:74:C5:C3:F3:1B:25:88:87:C4:CF:FC:99:45
- File MD5cb4640cf7b7813dc5af9e603de4f53dc
- 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 (45)
AJ 그룹웨어 requests 45 permissions, 12 of them sensitive.
- Call phone Sensitive android.permission.CALL_PHONE
- Camera Sensitive android.permission.CAMERA
- Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read calendar Sensitive android.permission.READ_CALENDAR
- Read contacts Sensitive android.permission.READ_CONTACTS
- Read media images Sensitive android.permission.READ_MEDIA_IMAGES
- Read media video Sensitive android.permission.READ_MEDIA_VIDEO
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Write calendar Sensitive android.permission.WRITE_CALENDAR
- Write contacts Sensitive android.permission.WRITE_CONTACTS
- Badge read (custom) com.sec.android.provider.badge.permission.READ
- Badge write (custom) com.sec.android.provider.badge.permission.WRITE
- Badger badge count read (custom) me.everything.badger.permission.BADGE_COUNT_READ
- Badger badge count write (custom) me.everything.badger.permission.BADGE_COUNT_WRITE
- Control vibration android.permission.VIBRATE
- Flashlight android.permission.FLASHLIGHT
- Full network access android.permission.INTERNET
- Get tasks android.permission.GET_TASKS
- Home broadcast badge (custom) com.sonyericsson.home.permission.BROADCAST_BADGE
- Home provider insert badge (custom) com.sonymobile.home.permission.PROVIDER_INSERT_BADGE
- Launcher change badge (custom) com.huawei.android.launcher.permission.CHANGE_BADGE
- Launcher read settings (custom) com.htc.launcher.permission.READ_SETTINGS
- Launcher read settings (custom) com.huawei.android.launcher.permission.READ_SETTINGS
- Launcher read settings (custom) com.oppo.launcher.permission.READ_SETTINGS
- Launcher update badge (custom) com.majeur.launcher.permission.UPDATE_BADGE
- Launcher update count (custom) com.anddoes.launcher.permission.UPDATE_COUNT
- Launcher update shortcut (custom) com.htc.launcher.permission.UPDATE_SHORTCUT
- Launcher write settings (custom) com.huawei.android.launcher.permission.WRITE_SETTINGS
- Launcher write settings (custom) com.oppo.launcher.permission.WRITE_SETTINGS
- Manage accounts android.permission.MANAGE_ACCOUNTS
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Read app badge android.permission.READ_APP_BADGE
- Read sync settings android.permission.READ_SYNC_SETTINGS
- Read sync stats android.permission.READ_SYNC_STATS
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Request ignore battery optimizations android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Show notifications android.permission.POST_NOTIFICATIONS
- Use credentials android.permission.USE_CREDENTIALS
- View network connections android.permission.ACCESS_NETWORK_STATE
- Write sync settings android.permission.WRITE_SYNC_SETTINGS
- Write sync stats android.permission.WRITE_SYNC_STATS
AJ 그룹웨어 APK: questions and answers
Is there a version of AJ 그룹웨어 for older Android phones?
The current version needs Android 6.0 or later. Version 1.2.3 is the newest listed build that installs on Android 4.4 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 1.2.3 · All versions
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 the AJ 그룹웨어 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 cb4640cf7b7813dc5af9e603de4f53dc.