# iCalc Triangle Calculator Pro vs ATM Academy

The clearest difference is update cadence: ATM Academy at every 5 days against iCalc Triangle Calculator Pro's every 19 months. ATM Academy also leads on iOS requirement (13.0 vs 15.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iCalc Triangle Calculator Pro ships an update every 19 months, ATM Academy every 5 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | iCalc Triangle Calculator Pro | ATM Academy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (5 ratings)](https://appshunter.io/ios/app/icalc-triangle-calculator-pro/id1603009957/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 5 days** |
| Monetization | Paid | — |
| Size | 4 MB | 24 MB |
| Requires iOS | 15.2 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jake Elrod](https://appshunter.io/developer/365336355) | [YANTAO ZHAO](https://appshunter.io/developer/1873296357) |

## What reviewers say

### iCalc Triangle Calculator Pro

[App page](https://appshunter.io/ios/app/icalc-triangle-calculator-pro/id1603009957)

Explore the fundamental properties of triangles with this interactive educational application. It allows users to delve into angles, area, sides, and perimeter, providing a hands-on approach to understanding geometric concepts.

**Highlights:** Triangle property exploration, Calculate angles, Calculate area, Calculate sides, Calculate perimeter, Interactive learning

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ATM Academy

[App page](https://appshunter.io/ios/app/atm-academy/id6767083171)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is iCalc Triangle Calculator Pro free?

iCalc Triangle Calculator Pro is free to download, with no in-app purchases.

### Is ATM Academy free?

ATM Academy is free to download, with no in-app purchases.

### Do iCalc Triangle Calculator Pro or ATM Academy have ads?

Neither iCalc Triangle Calculator Pro nor ATM Academy shows ads.

### Which is updated more often, iCalc Triangle Calculator Pro or ATM Academy?

iCalc Triangle Calculator Pro ships an update every 19 months, and ATM Academy every 5 days. Most recently, iCalc Triangle Calculator Pro was updated on November 3, 2026 and ATM Academy on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*