# GoodGeometry vs Klango

The clearest difference is price: Klango at Free against GoodGeometry's $3.99. Klango also leads on review sentiment (100% vs 64%). GoodGeometry's advantage is iOS requirement (16.4 vs 18.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

Klango is free to download; GoodGeometry costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | GoodGeometry | Klango |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[1.2 (5 ratings)](https://appshunter.io/ios/app/goodgeometry/id6448868208/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 64.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Paid | Paid |
| Size | 1.3 GB | 2 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Birgit Stock](https://appshunter.io/developer/598299950) | [Cem Hasanbeyoglu](https://appshunter.io/developer/6776387238) |

## What reviewers say

### GoodGeometry

[App page](https://appshunter.io/ios/app/goodgeometry/id6448868208)

Enhance geometry tasks within GoodNotes with infinitely zoomable tools, paper templates, and cover designs. Create custom templates and covers with editable patterns. Export your work as zoomable PDFs for versatile use.

**Highlights:** Infinitely zoomable geometric tools, Customizable paper templates, Editable cover designer, Zoomable PDF export, Multiple tool designs, GoodNotes and collection file formats

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

**In-app purchases:** none


### Klango

[App page](https://appshunter.io/ios/app/klango/id6776387236)

This flashcard app offers a one-time purchase for lifetime access, with no subscriptions, ads, or accounts required. It supports importing existing decks and features five study modes with smart language detection for over 25 languages.

**Highlights:** One-time purchase, yours forever, Import existing .apkg and .colpkg decks, Spaced repetition (SM-2 algorithm), Five focused study modes, Smart part-of-speech detection, Offline functionality, Supports 25+ languages

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

**In-app purchases:** none


## Frequently asked questions

### Is GoodGeometry free?

GoodGeometry costs $3.99, with no in-app purchases.

### Is Klango free?

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

### Do GoodGeometry or Klango have ads?

Neither GoodGeometry nor Klango shows ads.

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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.*