# Mathematicus Parvus vs Klango

The clearest difference is in-app purchases: Klango at none against Mathematicus Parvus's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Mathematicus Parvus sells 1 one-off in-app purchase. Klango asks for nothing beyond the download.

## The numbers

| Metric | Mathematicus Parvus | Klango |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Monetization | — | Paid |
| Size | 1 MB | 2 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kristof Nijs](https://appshunter.io/developer/1608072573) | [Cem Hasanbeyoglu](https://appshunter.io/developer/6776387238) |

## What reviewers say

### Mathematicus Parvus

[App page](https://appshunter.io/ios/app/mathematicus-parvus/id1613162646)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Purchase of the app | $0.99 | one-time |


### 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 Mathematicus Parvus free?

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

### Is Klango free?

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

### Do Mathematicus Parvus or Klango have ads?

Neither Mathematicus Parvus 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.*