McCalc® v3.0.7
APK · 6 MB · version code 38 · Android 5.0+ · uploaded Jul 25, 2025
- 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 v3.0.9, uploaded May 26, 2026 — about 10 months after this one.
- Size: this file is 6 MB; the latest is 6 MB (675 B larger).
- Both versions request the same permissions.
File information
- Version
- v3.0.7 (38)
- Uploaded
- Jul 25, 2025
- Size
- 6 MB
- Requires
- Android 5.0+ (API 21)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- e46fff4150969411decd54f2cf0f0183
- Signing certificate (SHA-1)
- E8:05:F6:4D:5E:62:34:B6:A3:50:5F:44:FA:B1:8F:BC:99:8D:97:05
- Signed by
- CN=Dustin Wilson, O=McElroy Manufacturing Inc, L=Tulsa, ST=OK
- File name
- com-mcelroy-mccalc-38-71240077-e46fff4150969411decd54f2cf0f0183.apk
- Package
- com.mcelroy.mccalc
- Downloads (all versions)
- 100K+
- Age rating
- PEGI 3 · Everyone
What's new in v3.0.7
Added ASTM-F3722 standard
Permissions (5)
This version requests 5 permissions, 3 of them sensitive.
- Camera Sensitive android.permission.CAMERA
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Full network access android.permission.INTERNET
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jul 25, 2025.
- Certificate issued to “McElroy Manufacturing Inc” This is the certificate of the Google Play version.
- Same certificate as the 3 other versions checked
Store checks
- Developer signature verified Jul 25, 2025
- Validated against Google Play Jul 25, 2025
- 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 McCalc® on Android 5.0+
You'll need about 12 MB of free space.
- Download the APK — tap Download APK above (6 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-mcelroy-mccalc-38-71240077-e46fff4150969411decd54f2cf0f0183.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 e46fff4150969411decd54f2cf0f0183. 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 McCalc® — 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 5.0+). 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.