One Calculator - scientific calculator
Calculator, Graphing calculator, Converter and Matrix calculator: all in one app
Pierfrancesco Soffritti · it.onecalculator
- The source store's developer-signature check failed Details
At a glance
- Latest version
- v3.0.22 (129)
- Updated
- May 21, 2024 (2 years ago)
- APK size
- 2.6 MB
- Requires
- Android 4.0.3+ (API 15)
- CPU support
- Any (no native code)
- Category
- Tools (app)
- Listed since
- Jun 17, 2021 (at least)
- Permissions
- 8
- Developer contact
- [email protected]
About this APK
One Calculator - scientific calculator is an app by Pierfrancesco Soffritti in the Tools category, listed since at least June 2021. It has no native code, so it runs on any Android processor.
It asks for 8 permissions, none of them sensitive. The app offers in-app purchases through Google Play.
What's new in v3.0.22
Description
From the listing uploaded by “appupdater”.
Security & authenticity
Signing certificate
- Certificate issued to “none” The developer's name — though anyone can put any name in a certificate.
Store checks and file details
- Developer signature check failed Mar 11, 2025
- Antivirus scan result not available
- Signed byCN=Pierfrancesco Soffritti, OU=none, O=none, L=Mirabello, ST=Ferrara, C=44043
- Signing certificate (SHA-1)67:AB:60:AF:81:1C:25:44:F0:4C:1A:25:2A:C1:B1:E4:B6:ED:BC:CF
- File MD5bcac5d9bb4d013f5ada6cddfb2f57030
- 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 (8)
One Calculator - scientific calculator requests 8 permissions, none of them sensitive.
- 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
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Push messaging (app-defined) it.onecalculator.permission.C2D_MESSAGE
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Basic touch input android.hardware.faketouch
One Calculator - scientific calculator APK: questions and answers
Can I install this APK over the version I already have?
Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.
Is One Calculator - scientific calculator free?
The APK is free to download, but the app offers in-app purchases through Google Play.
Is the One Calculator - scientific calculator APK safe?
No one can promise that a file is safe, but some things can be checked. The source store's check of the developer's signature failed. After downloading, check that the file's MD5 is bcac5d9bb4d013f5ada6cddfb2f57030.
