# Wio Link vs AVR Tutorial

The clearest difference is review sentiment: AVR Tutorial at 75% against Wio Link's 0%. AVR Tutorial also leads on rating (5.0 vs 2.0). Wio Link's advantage is in-app purchases (none vs 10) and update cadence (monthly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AVR Tutorial sells 10 one-off in-app purchases. Wio Link asks for nothing beyond the download.

AVR Tutorial holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: Wio Link has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Wio Link's written reviews are positive against 75% of AVR Tutorial's.

Wio Link ships an update monthly, AVR Tutorial every 3 months. The most recent releases landed on September 13, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Wio Link | AVR Tutorial |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (10 ratings)](https://appshunter.io/ios/app/wio-link/id1054893491/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/avr-tutorial/id1070496499/reviews)** |
| Number of ratings | **10** | 2 |
| Positive reviews | 0.0% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 19 MB | 33 MB |
| Requires iOS | **8.0** | 9.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Seeed Technology Limited](https://appshunter.io/developer/1054892680) | [Siu Yuen Ho](https://appshunter.io/developer/814088527) |

## What reviewers say

### Wio Link

[App page](https://appshunter.io/ios/app/wio-link/id1054893491)

This app simplifies the creation of connected IoT projects using Wi-Fi development boards and Grove modules. It allows for visual programming and plug-and-play integration without the need for hardware programming or soldering.

**Highlights:** Visual programming, No soldering required, Grove module support, Plug & play interface, API support, Cloud service integration, Cost-effective development

**Features:** macOS Compatibility

**In-app purchases:** none


### AVR Tutorial

[App page](https://appshunter.io/ios/app/avr-tutorial/id1070496499)

This app simplifies learning AVR microcontrollers with a code wizard that generates C source code for various peripherals. It offers demo projects and an architecture review, making complex MCU programming more accessible for hobbyists and students.

**Highlights:** AVR architecture review, AVR assembly and C language, 21 demo projects, Code wizard for peripherals, Portability to other ATMEGA MCUs, I2C and SPI EEPROM support (PRO)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock PRO feature | $1.99 | one-time |
| SPI OLED | $1.99 | one-time |
| I2C OLED | $1.99 | one-time |
| Wifi home automation | $1.99 | one-time |
| 2.2" TFT | $1.99 | one-time |
| LoRa home automation | $1.99 | 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 |


## Frequently asked questions

### Is Wio Link free?

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

### Is AVR Tutorial free?

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

### Which has better reviews, Wio Link or AVR Tutorial?

AVR Tutorial is rated higher. Wio Link averages 2.0 out of 5 from 10 ratings, while AVR Tutorial averages 5.0 from 2 ratings.

### Do Wio Link or AVR Tutorial have ads?

Neither Wio Link nor AVR Tutorial shows ads.

### Which is updated more often, Wio Link or AVR Tutorial?

Wio Link ships an update monthly, and AVR Tutorial every 3 months. Most recently, Wio Link was updated on September 13, 2026 and AVR Tutorial on September 24, 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.*