Your Engineering Calculator Box. Built for all.
Version 1.2 • Released February 2026
Please read the following terms carefully before downloading:
By downloading and installing the eCalcuBox app, you agree to the following terms:
Note: Since this app is not available on Google Play, it can only be downloaded directly from our official website.
File size: ~86.6 MB • Android 9.0 or above required
Scan QR code to download on your phone
Tap "Accept & Download" after reading and accepting the terms above.
Tap "Download" to start downloading the APK file to your device.
After the download is completed, tap your browser's menu icon, then tap "Downloads" to access your download folder.
Select the downloaded APK file. If prompted, go to Settings → Apps → Special app access → Install unknown apps and allow installation for your browser.
Tap "Install" or "Update" to install or update the app on your device.
Tap "Open" to launch the app after installation is completed. You can also find it in your app drawer.
We scan every build with tools like VirusTotal before release to ensure no malware or viruses are present.
This APK comes directly from our official site with no third-party modifications. You always get the authentic, unmodified version.
We can add an in-app updater in future versions. For now, please re-download new versions from our official website when updates are available.
We're here to help! If you encounter any problems during download or installation, please don't hesitate to contact us.
Downloaded from the official ecalcubox.com
Your Engineering Calculator Box. Built for all.
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