# AVR Tutorial Pro vs Richtig

The clearest difference is price: Richtig at Free against AVR Tutorial Pro's $1.99. Richtig also leads on update cadence (every 3 weeks vs every 4 months). AVR Tutorial Pro's advantage is ads (none vs shown) and iOS requirement (9.0 vs 15). On in-app purchases and device support there is nothing between them.

Richtig is free to download; AVR Tutorial Pro costs $1.99 up front. AVR Tutorial Pro sells 10 one-off in-app purchases and Richtig sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

AVR Tutorial Pro ships an update every 4 months, Richtig every 3 weeks. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AVR Tutorial Pro | Richtig |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 33 MB | 122 MB |
| Requires iOS | **9.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [Institut Dr. Ehrlich e.K.](https://appshunter.io/developer/1601127216) |

## What reviewers say

### AVR Tutorial Pro

[App page](https://appshunter.io/ios/app/avr-tutorial-pro/id1066643368)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SPI OLED | $1.99 | one-time |
| Wifi home automation | $1.99 | one-time |
| I2C OLED | $1.99 | one-time |
| 2.2" TFT | $1.99 | one-time |
| Lora home automation | $1.99 | one-time |
| gps project | $2.99 | one-time |
| Home automation using Siri | $2.99 | one-time |
| Home automation using Google | $2.99 | one-time |
| BT home automation | $4.99 | one-time |
| BLE home automation | $4.99 | one-time |


### Richtig

[App page](https://appshunter.io/ios/app/richtig-schreiben-german/id1601126974)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version (monthly) | $1.99 | per month |
| Pro Version (annually) | $12.99 | per year |


## Frequently asked questions

### Is AVR Tutorial Pro free?

AVR Tutorial Pro costs $1.99, and also offers in-app purchases.

### Is Richtig free?

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

### Do AVR Tutorial Pro or Richtig have ads?

Richtig shows ads; AVR Tutorial Pro does not.

### Which is updated more often, AVR Tutorial Pro or Richtig?

AVR Tutorial Pro ships an update every 4 months, and Richtig every 3 weeks. Most recently, AVR Tutorial Pro was updated on October 10, 2026 and Richtig on October 25, 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.*