At a glance
- Latest version
- v2.6.6 (228)
- Updated
- Jun 25, 2026 (3 months ago)
- APK size
- 10.3 MB
- Requires
- Android 4.1+ (API 16)
- CPU support
- Any (no native code)
- Category
- Communication (app)
- Listed since
- May 10, 2021 (at least)
- Permissions
- 21 (7 sensitive)
- Website
- otocall.com
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
OTO Free International Call is an app by openvacs in the Communication category, listed since at least May 2021. It has no native code, so it runs on any Android processor.
It asks for 21 permissions, 7 of them sensitive, including camera, read contacts and call phone.
What's new in v2.6.6
Description
From the listing uploaded by “appupdater”.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jun 25, 2026.
- Certificate issued to “Openvacs” This is the certificate of the Google Play version.
Store checks and file details
- Developer signature verified Jun 25, 2026
- Validated against Google Play Jun 25, 2026
- Antivirus scan result not available
- Signed byCN=Jong-Hyun Hwang, OU=Openvacs, O=Openvacs, L=Seoul, C=kr
- Signing certificate (SHA-1)CF:B6:DF:35:1F:EF:29:0E:DE:D5:FB:4E:48:D8:4A:EE:8B:12:54:49
- File MD5ab10e417691a1704910f3bbd30c6f7d4
- 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. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (21)
OTO Free International Call requests 21 permissions, 7 of them sensitive.
- Call phone Sensitive android.permission.CALL_PHONE
- Camera Sensitive android.permission.CAMERA
- Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- 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
- Call privileged android.permission.CALL_PRIVILEGED
- Control vibration android.permission.VIBRATE
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- Modify phone state android.permission.MODIFY_PHONE_STATE
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Push messaging (app-defined) com.openvacs.android.oto.permission.C2D_MESSAGE
- Read privileged phone state android.permission.READ_PRIVILEGED_PHONE_STATE
- 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
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Camera android.hardware.camera
- Basic touch input android.hardware.faketouch
- Telephony (SIM) android.hardware.telephony
- Wi-Fi android.hardware.wifi
OTO Free International Call APK: questions and answers
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 OTO Free International Call 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. After downloading, check that the file's MD5 is ab10e417691a1704910f3bbd30c6f7d4.
