# AVR Tutorial Pro vs Digital Electronics+

The clearest difference is price: Digital Electronics+ at Free against AVR Tutorial Pro's $1.99. AVR Tutorial Pro's advantage is iOS requirement (9.0 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Digital Electronics+ is free to download; AVR Tutorial Pro costs $1.99 up front. AVR Tutorial Pro sells 10 one-off in-app purchases and Digital Electronics+ sells 6 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

AVR Tutorial Pro ships an update every 4 months, Digital Electronics+ every 6 months. The most recent releases landed on October 5, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | AVR Tutorial Pro | Digital Electronics+ |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Size | 33 MB | 24 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## 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 |


### Digital Electronics+

[App page](https://appshunter.io/ios/app/digital-electronics-plus/id6747192806)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $9.99 | per month |
| 6 Months | $19.99 | per 6 months |
| 1 Year | $29.99 | per year |
| 1500 | $0.99 | one-time |
| 3500 | $1.99 | one-time |
| 9000 | $3.99 | one-time |


## Frequently asked questions

### Is AVR Tutorial Pro free?

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

### Is Digital Electronics+ free?

Digital Electronics+ is free to download, with in-app purchases available.

### Do AVR Tutorial Pro or Digital Electronics+ have ads?

Neither AVR Tutorial Pro nor Digital Electronics+ shows ads.

### Which is updated more often, AVR Tutorial Pro or Digital Electronics+?

AVR Tutorial Pro ships an update every 4 months, and Digital Electronics+ every 6 months. Most recently, AVR Tutorial Pro was updated on October 5, 2026 and Digital Electronics+ on September 30, 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.*