# Calcache, Math facts puzzles vs Lecture differenciee

The clearest difference is price: Lecture differenciee at Free against Calcache, Math facts puzzles's $1.99. Lecture differenciee also leads on iOS requirement (11.0 vs 13.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Lecture differenciee is free to download; Calcache, Math facts puzzles costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calcache, Math facts puzzles ships an update every 15 months, Lecture differenciee every 23 months. The most recent releases landed on September 11, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Calcache, Math facts puzzles | Lecture differenciee |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 15 months** | Every 23 months |
| Size | 22 MB | 350 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RX Labz](https://appshunter.io/developer/1223459761) | [Éditions JOCATOP](https://appshunter.io/developer/1438112476) |

## What reviewers say

### Calcache, Math facts puzzles

[App page](https://appshunter.io/ios/app/calcache-math-facts-puzzles/id1529890772)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lecture differenciee

[App page](https://appshunter.io/ios/app/lecture-differenciee/id1643148490)

**In-app purchases:** none


## Frequently asked questions

### Is Calcache, Math facts puzzles free?

Calcache, Math facts puzzles costs $1.99, with no in-app purchases.

### Is Lecture differenciee free?

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

### Do Calcache, Math facts puzzles or Lecture differenciee have ads?

Neither Calcache, Math facts puzzles nor Lecture differenciee shows ads.

### Which is updated more often, Calcache, Math facts puzzles or Lecture differenciee?

Calcache, Math facts puzzles ships an update every 15 months, and Lecture differenciee every 23 months. Most recently, Calcache, Math facts puzzles was updated on September 11, 2026 and Lecture differenciee on September 10, 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.*