
Contacts Sync (requires ROOT)
Sync your address book contacts with HQ contacts photos !
AndroidDeveloperLB · com.lb.contacts_sync
- Signature matches the Google Play version Details
At a glance
- Latest version
- v3.81 (281)
- Updated
- Oct 2, 2026 (7 days ago)
- APK size
- 37.1 MB
- Requires
- Android 12L+ (API 32)
- CPU support
- x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
- Category
- Tools (app)
- Listed since
- Feb 5, 2021 (at least)
- Permissions
- 23 (6 sensitive)
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
Contacts Sync (requires ROOT) is an app by AndroidDeveloperLB in the Tools category, listed since at least February 2021. 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 3.18, the APK grew from 14.7 MB to 37.1 MB. Since version 2.79, the minimum Android version rose from 4.4 to 12L. It asks for 23 permissions, 6 of them sensitive, including read contacts, read phone status and identity and find accounts on the device. It asks for the same permissions as version 3.8. The app offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.
What's new in v3.81
Description
From the listing uploaded by “appupdater”.
Version history
8 versions are listed, going back to v2.79. New versions arrive here about every month. Since v3.55 it requires Android 12L+.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Oct 2, 2026.
- Certificate issued to “Liran” This is the certificate of the Google Play version.
- Same certificate as the 5 other versions checked
Store checks and file details
- Developer signature verified Oct 2, 2026
- Validated against Google Play Oct 2, 2026
- Signed byCN=Liran
- Signing certificate (SHA-1)69:8C:B9:CA:A9:71:1B:6B:78:1F:89:A4:80:E7:81:B5:23:3A:9A:4B
- File MD5ad8232e3e6c93d321b6c5f6b9efb3bec
- 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 (5 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (23)
Contacts Sync (requires ROOT) requests 23 permissions, 6 of them sensitive.
- Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
- Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
- Package usage stats Sensitive android.permission.PACKAGE_USAGE_STATS
- Read contacts Sensitive android.permission.READ_CONTACTS
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Write contacts Sensitive android.permission.WRITE_CONTACTS
- Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
- Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
- Advertising ID com.google.android.gms.permission.AD_ID
- Attest (custom) com.amazon.privacypass.ATTEST
- Dump android.permission.DUMP
- Foreground service special use android.permission.FOREGROUND_SERVICE_SPECIAL_USE
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Internal broadcast protection (app-defined) com.lb.contacts_sync.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Read basic phone state android.permission.READ_BASIC_PHONE_STATE
- Run foreground services android.permission.FOREGROUND_SERVICE
- Show notifications android.permission.POST_NOTIFICATIONS
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Basic touch input android.hardware.faketouch
- Wi-Fi android.hardware.wifi
Contacts Sync (requires ROOT) APK: questions and answers
Is there a version of Contacts Sync (requires ROOT) for older Android phones?
The current version needs Android 12L or later. Version 3.49 is the newest listed build that installs on Android 6.0 and later. Get version 3.49 · 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 Contacts Sync (requires ROOT) free?
The APK is free to download, but the app offers in-app purchases through Google Play.
Is the Contacts Sync (requires ROOT) 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 5 other versions checked. After downloading, check that the file's MD5 is ad8232e3e6c93d321b6c5f6b9efb3bec.