Comparison

Wio Link vs AVR Tutorial

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Wio Link

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
Read full description

Wio Link is a Wi-Fi development board to build connected IoT projects with Groves. It’s based on ESP8266 Wi-Fi SoC, supporting a bunch of Grove modules. Simplify your development of IoT devices without requirements of hardware programming or soldering. Features: * Visual programming * No soldering * Supported by Grove family * Plug & play interface * API supported * Easy to integrate to Cloud services * Cost effective

About

AVR Tutorial

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
Read full description

This app is a AVR tutorial based on ATMEGA16 C language. It is suitable for hobbyist or engineering students. Learning AVR mcu is difficult. The learning curve is steep. The process including reading datasheet, writing code, building prototypes and troubleshooting. The most possible errors are the setting wrong value of registers. Now, AVR tutorial is the solution. The code wizard allow you to set the timer, UART, ADC, interrupt and peripherals by just a few clicks in setting. The proven C source code is generated automatically. Though the code wizard is based on ATMEGA16 mcu, it is easy to port to other ATMEGA mcu since the source code is highly structured Features • AVR architecture review • AVR asm mnemonics & C language • 21 demo projects including LED, buzzer, key switch, lcm16x2, ADC, etc • Code wizard for UART, timer, interrupt, ADC and external peripherals Features in PRO only • Support I2C eeprom 24C01 (128B) ~ 24C512 (64kB) • Support SPI eeprom 25010 (128B) ~ 25M02 (256kB) • Extra demo projects including led matrix 16x16, I2C eeprom, SPI eeprom • Code wizard for I2C eeprom, SPI eeprom, LCM128x64, etc Atmel® and AVR® are registered trademarks or trademarks of Atmel Corporation or its subsidiaries, in the US and/or other countries. This application is not related or affiliated in any way Atmel Corporation.

Screenshots

Wio Link1 screens
AVR Tutorial4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Wio Link versus AVR Tutorial: the parameters behind the verdict, then further details
ParameterWio LinkAVR Tutorial
PriceFreeFree
Rating2.0 (10 ratings)5.0 (2 ratings) — better
Positive reviews0.0% of reviews75.0% of reviews — better
Number of ratings10 — better2
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better9.0
Further details — not scored
Size19 MB33 MB
Age rating4+4+
DeveloperSeeed Technology LimitedSiu Yuen Ho

Customer experience

Wio Link

All ratings10 ratings
Positive20.0%
Neutral10.0%
Negative70.0%
Written reviews11 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

AVR Tutorial

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

None

Wio Link

No in-app purchases

10 purchases

AVR Tutorial

One-time10
  • Unlock PRO feature$1.99
  • SPI OLED$1.99
  • I2C OLED$1.99
Show 7 more
  • Wifi home automation$1.99
  • 2.2" TFT$1.99
  • LoRa home automation$1.99
  • Home automation using Siri$2.99
  • Home automation using Google$2.99
  • BT home automation$4.99
  • BLE home automation$4.99

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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