# AVR Tutorial vs SMD decoder

The clearest difference is in-app purchases: SMD decoder at none against AVR Tutorial's 10. SMD decoder also leads on update cadence (every 2 days vs every 3 months). AVR Tutorial's advantage is iOS requirement (9.0 vs 11.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for AVR Tutorial against 5.0 for SMD decoder. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

AVR Tutorial ships an update every 3 months, SMD decoder every 2 days. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | AVR Tutorial | SMD decoder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/avr-tutorial/id1070496499/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/smd-decoder/id6473452077/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 43 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [Arkadiusz Fryszkowski](https://appshunter.io/developer/1142676058) |

## What reviewers say

### 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 |


### SMD decoder

[App page](https://appshunter.io/ios/app/smd-decoder/id6473452077)

Decode SMD resistors with this practical tool. It supports three-digit, four-digit, and EIA-96 encoded resistor values, providing quick and accurate identification.

**Highlights:** Decodes 3-digit SMD codes, Decodes 4-digit SMD codes, Decodes EIA-96 SMD codes, Resistor value identification

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AVR Tutorial free?

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

### Is SMD decoder free?

SMD decoder is free to download, with no in-app purchases.

### Which has better reviews, AVR Tutorial or SMD decoder?

AVR Tutorial and SMD decoder are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do AVR Tutorial or SMD decoder have ads?

Neither AVR Tutorial nor SMD decoder shows ads.

### Which is updated more often, AVR Tutorial or SMD decoder?

AVR Tutorial ships an update every 3 months, and SMD decoder every 2 days. Most recently, AVR Tutorial was updated on October 5, 2026 and SMD decoder on October 1, 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.*