# CalcuMathic vs ETA

The clearest difference is in-app purchases: ETA at none against CalcuMathic's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CalcuMathic sells 3 in-app purchases, starting at $0.99 per month. ETA asks for nothing beyond the download.

CalcuMathic ships an update every 3 weeks, ETA every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CalcuMathic | ETA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Freemium | — |
| Size | 58 MB | 51 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ganvent SAC](https://appshunter.io/developer/1664995372) | [Teachlr Corp](https://appshunter.io/developer/1464995564) |

## What reviewers say

### CalcuMathic

[App page](https://appshunter.io/ios/app/calcumathic-matematica/id6455174979)

This app provides a comprehensive collection of mathematical formulas, tools, and exercises for students of all levels. It aims to help users understand, comprehend, and improve their math skills with practical examples and a favorite formulas list. Covers a wide range of math disciplines from primary school to university.

**Highlights:** Extensive math formula library, Interactive mathematical tools, Practice exercises with examples, Favorite formulas list, Covers multiple math disciplines, Suitable for all educational levels

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalcuMathic Premium 1 mes | $0.99 | per month |
| CalcuMathic Premium Anual | $2.99 | per year |
| Lifetime Ganvent Premium | $2.99 | one-time |


### ETA

[App page](https://appshunter.io/ios/app/eta-rm/id6790851355)

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

**In-app purchases:** none


## Frequently asked questions

### Is CalcuMathic free?

CalcuMathic is free to download, with in-app purchases available.

### Is ETA free?

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

### Do CalcuMathic or ETA have ads?

Neither CalcuMathic nor ETA shows ads.

### Which is updated more often, CalcuMathic or ETA?

CalcuMathic ships an update every 3 weeks, and ETA every 2 weeks. Most recently, CalcuMathic was updated on November 3, 2026 and ETA on October 31, 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.*