Transfer Contacts v4.2.1
APK · 9.8 MB · version code 54 · Android 4.2+ · uploaded Jan 11, 2026
- 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 v4.8.1, uploaded Sep 2, 2026 — about 8 months after this one.
- Size: this file is 9.8 MB; the latest is 11.3 MB (1.5 MB larger).
- Android: this version needs Android 4.2+; the latest needs Android 8.0+. Use this one if your device runs an older Android release.
- The latest version asks for 7 more permissions: Approximate location, Precise location, Bluetooth connect, Bluetooth scan, Foreground service connected device, Advertising ID, Internal broadcast protection (app-defined).
File information
- Version
- v4.2.1 (54)
- Uploaded
- Jan 11, 2026
- Size
- 9.8 MB
- Requires
- Android 4.2+ (API 17)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- ea2d6007bba1190564f968baa5beeefa
- Signing certificate (SHA-1)
- E4:11:88:E0:EE:91:B6:92:84:F9:FE:9D:76:5B:AE:95:B2:D3:A1:94
- Signed by
- O=Maine Avenue Technologies SL
- File name
- com-maineavtech-android-grasshopper-54-73064590-ea2d6007bba1190564f968baa5beeefa.apk
- Package
- com.maineavtech.android.grasshopper
- Downloads (all versions)
- 1M+
- Age rating
- PEGI 3 · Everyone
Permissions (18)
This version requests 18 permissions, 3 of them sensitive.
- Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
- Read contacts Sensitive android.permission.READ_CONTACTS
- Write contacts Sensitive android.permission.WRITE_CONTACTS
- Authenticate accounts android.permission.AUTHENTICATE_ACCOUNTS
- Bluetooth android.permission.BLUETOOTH
- Bluetooth admin android.permission.BLUETOOTH_ADMIN
- Change wifi state android.permission.CHANGE_WIFI_STATE
- Full network access android.permission.INTERNET
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Manage accounts android.permission.MANAGE_ACCOUNTS
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Read sync settings android.permission.READ_SYNC_SETTINGS
- Read sync stats android.permission.READ_SYNC_STATS
- Run foreground services android.permission.FOREGROUND_SERVICE
- Use credentials android.permission.USE_CREDENTIALS
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
- Write sync settings android.permission.WRITE_SYNC_SETTINGS
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jan 11, 2026.
- Certificate issued to “Maine Avenue Technologies SL” This is the certificate of the Google Play version.
- Same certificate as the 3 other versions checked
Store checks
- Developer signature verified Jan 11, 2026
- Validated against Google Play Jan 11, 2026
- 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 Transfer Contacts on Android 4.2+
You'll need about 19.6 MB of free space.
- Download the APK — tap Download APK above (9.8 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-maineavtech-android-grasshopper-54-73064590-ea2d6007bba1190564f968baa5beeefa.apk.
- 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.
- Check the file (optional) — the MD5 of the downloaded file should be ea2d6007bba1190564f968baa5beeefa. If it differs, the file is damaged or was changed: delete it and download again.
- 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).
- Open Transfer Contacts — 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 4.2+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.