Concentration Tool
The power of concentration comes by practising. This tool will help you a lot.
gustar-droid · com.prashantsj.apps.concentrationtool
- Signature matches the Google Play version Details
At a glance
- Latest version
- v1.0.5 (13)
- Updated
- Aug 30, 2025 (1 year ago)
- APK size
- 7.8 MB
- Requires
- Android 7.0+ (API 24)
- CPU support
- Any (no native code)
- Category
- Personalization (app)
- Permissions
- 9
- Website
- gustar-droid.blogspot.com
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
Concentration Tool is an app by gustar-droid in the Personalization category. It has no native code, so it runs on any Android processor.
It asks for 9 permissions, none of them sensitive. The app can read the advertising ID that ad and analytics services use.
What's new in v1.0.5
Description
From the listing uploaded by “appupdater”.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Aug 30, 2025.
- Certificate issued to “Gustar” This is the certificate of the Google Play version.
Store checks and file details
- Developer signature verified Aug 30, 2025
- Validated against Google Play Aug 30, 2025
- Signed byCN=Prashant Jadhav, O=Gustar, L=Pune, ST=Maharashtra, C=411047
- Signing certificate (SHA-1)32:8B:14:F5:8A:5C:4C:98:E8:59:EE:06:10:9D:4B:1C:88:B0:41:FA
- File MD5a02e808ec672bebd44ac22d6c68f0c93
- 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 (9)
Concentration Tool requests 9 permissions, none of them sensitive.
- 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
- Full network access android.permission.INTERNET
- Internal broadcast protection (app-defined) com.prashantsj.apps.concentrationtool.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run foreground services android.permission.FOREGROUND_SERVICE
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Basic touch input android.hardware.faketouch
Concentration Tool 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 Concentration Tool 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 a02e808ec672bebd44ac22d6c68f0c93.
