# sketchometry vs Kurt Karma

The clearest difference is device support: sketchometry at 3 against Kurt Karma's 1. Kurt Karma's advantage is iOS requirement (11.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

sketchometry ships an update every 10 days, Kurt Karma fortnightly. The most recent releases landed on June 25, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | sketchometry | Kurt Karma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/sketchometry/id635195332/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 65.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | Free | — |
| Size | 82 MB | 1.9 GB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Universitaet Bayreuth](https://appshunter.io/developer/926230632) | [Universitaet Leipzig](https://appshunter.io/developer/1506000314) |

## What reviewers say

### sketchometry

[App page](https://appshunter.io/ios/app/sketchometry/id635195332)

This app transforms your finger drawings into precise geometric shapes on your iPhone or iPad. It turns math into an experimental subject, encouraging learners to discover concepts through hands-on interaction rather than presenting pre-made solutions.

**Highlights:** Finger-to-geometry conversion, Dynamic mathematical exploration, Experimental learning approach, Interactive geometric drawing, Supports iPhone and iPad

**Features:** macOS Compatibility

**In-app purchases:** none


### Kurt Karma

[App page](https://appshunter.io/ios/app/kurt-karma/id6450889631)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is sketchometry free?

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

### Is Kurt Karma free?

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

### Do sketchometry or Kurt Karma have ads?

Neither sketchometry nor Kurt Karma shows ads.

### Which is updated more often, sketchometry or Kurt Karma?

sketchometry ships an update every 10 days, and Kurt Karma fortnightly. Most recently, sketchometry was updated on June 25, 2026 and Kurt Karma on September 11, 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.*