Calculator

Prometheus Interactive LLC

4.4

Ratings

10,000,000+

Downloads

Everyone

Age

Versions

Download Latest APK (9.1.5, 34.8 MB)

About this app

NameCalculator

CategoryEducation

PriceFree

Safety100% Safe

DeveloperPrometheus Interactive LLC

Version9.1.5

Packageapps.r.calculator

Updated2025-08-19

RequiresVaries with device

Calculator is an education app by Prometheus Interactive LLC; at 10,000,000+ installs it is well established, with millions of users. It scores well, with 80% five-star ratings. Development looks dormant - no release in more than a year.

Free to download, though in-app purchases run $0.99 - $99.99 per item, and it shows ads. Content is rated Everyone. 390 people have left a written review.

Rating distribution

5★87,407

4★3,886

3★2,429

2★1,943

1★13,167

Previous APK Versions All 29 ›

Calculator 9.1.5 latest
XAPK · 34.8 MB2025-08-26 Calculator 9.1.3.1
XAPK · 29.1 MB2025-06-15 Calculator 9.1.2
XAPK · 14.7 MB2024-01-19 Calculator 9.1.1
APK · 14.7 MB2024-01-15 Calculator 8.6.2
XAPK · 6.2 MB2023-08-23 Calculator 8.6.1
XAPK · 6.2 MB2023-06-15 Calculator 8.6.0
XAPK · 6.2 MB2023-01-29 Calculator 8.5.9
XAPK · 6.0 MB2022-10-22 Calculator 8.5.8
XAPK · 6.1 MB2022-09-09 Calculator 8.5.7
XAPK · 6.1 MB2022-09-08

Frequently asked questions

01 Is Calculator free?

Yes. Calculator is listed as free on Google Play and offers in-app purchases ($0.99 - $99.99 per item); it also shows ads.

02 Which Android version does Calculator need?

The current release requires Android Varies with device. If your device is older, one of the 29 earlier versions listed above may still install.

03 How do I install the APK?

Download the file from the version page, open it on your Android device and allow installs from this source when prompted. XAPK bundles need the APKPure app or a split-APK installer (see the install guide in the footer). Always prefer the latest version unless you specifically need an older build.

04 Is the download safe?

Files are served by an established third-party mirror and are the same builds distributed to Play Store users; APK Rewind never repackages or modifies them. Check the developer name (Prometheus Interactive LLC) and package name (apps.r.calculator) match what you expect.