RMR Calculator & Tracker v1.5.3
APK · 4 MB · version code 21 · Android 4.2+ · uploaded May 19, 2024
- Same certificate as v3.0.3, which matches Google Play 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 v3.0.3, uploaded Feb 20, 2026 — about 1 year after this one.
- Size: this file is 4 MB; the latest is 3.2 MB (819.8 KB smaller).
- 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 3 more permissions: Internal broadcast protection (app-defined), Google Play install referrer, Advertising ID.
- The latest version no longer asks for: Read shared storage, Modify shared storage, In-app purchases (Google Play Billing).
File information
- Version
- v1.5.3 (21)
- Uploaded
- May 19, 2024
- Size
- 4 MB
- Requires
- Android 4.2+ (API 17)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- f7402001cdffa39435b42f0813fcae23
- Signing certificate (SHA-1)
- 67:8D:53:D8:D7:52:2E:C5:D1:0D:4F:C4:1C:EB:76:47:CB:D5:46:AE
- Signed by
- CN=Matthew Rohr, OU=--, O=First Century Thinking LLC, L=Jacksonville, ST=OR, C=US
- File name
- com-firstcenturythinking-rmrcalculator-21-67618497-f7402001cdffa39435b42f0813fcae23.apk
- Package
- com.firstcenturythinking.rmrcalculator
- Downloads (all versions)
- 1K+
- Age rating
- PEGI 3 · Everyone
What's new in v1.5.3
----1.5.3----
★ Added link to app privacy policy
----1.5.2----
★ General Update: Bug fixes and back end improvements
----1.5.1----
★ DATA IMPORT/EXPORT (new)
Export your history as a CSV file for review or transfer it to a different device.
√ Saved to your SD Card (or internal) within the ‘Documents’ folder
√ Saved as a comma delimited CSV file.
√ Entry history only
Permissions (6)
This version requests 6 permissions, 2 of them sensitive.
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Full network access android.permission.INTERNET
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Prevent the device from sleeping android.permission.WAKE_LOCK
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate issued to “First Century Thinking LLC” This is the certificate of the Google Play version.
- Same certificate as v3.0.3, which matches Google Play v3.0.3
Store checks
- Developer signature verified May 19, 2024
- Antivirus scan result not available
- 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 (1 other version compared). AAPKs doesn't scan files itself.
How to install RMR Calculator & Tracker on Android 4.2+
You'll need about 8.1 MB of free space.
- Download the APK — tap Download APK above (4 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-firstcenturythinking-rmrcalculator-21-67618497-f7402001cdffa39435b42f0813fcae23.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 f7402001cdffa39435b42f0813fcae23. 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 RMR Calculator & Tracker — 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.