# AVR Tutorial vs Simple Circuit Builder

The clearest difference is rating: AVR Tutorial at 5.0 against Simple Circuit Builder's 4.0. AVR Tutorial also leads on review sentiment (75% vs 53%) and iOS requirement (9.0 vs 14.0). Simple Circuit Builder's advantage is in-app purchases (none vs 10) and update cadence (every 3 weeks vs every 3 months). On price, ads and device support there is nothing between them.

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

AVR Tutorial holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Simple Circuit Builder has 28 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 75% of AVR Tutorial's written reviews are positive against 53% of Simple Circuit Builder's.

AVR Tutorial ships an update every 3 months, Simple Circuit Builder every 3 weeks. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | AVR Tutorial | Simple Circuit Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/avr-tutorial/id1070496499/reviews)** | [4.0 (28 ratings)](https://appshunter.io/ios/app/simple-circuit-builder/id1294616098/reviews) |
| Number of ratings | 2 | **28** |
| Positive reviews | **75.0% of reviews** | 52.6% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 14 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [David White](https://appshunter.io/developer/911163945) |

## 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 |


### Simple Circuit Builder

[App page](https://appshunter.io/ios/app/simple-circuit-builder/id1294616098)

This virtual lab offers a hands-on experience for learning about resistors and circuit resistance. Easily build and test series and parallel circuits, measure voltage and current, and understand the impact of component changes in real-time.

**Highlights:** Build circuits with up to eight components, Five component types, Virtual volt and amp meters, Adjustable resistor and voltage values, Real-time circuit analysis, Demonstrates 'Opens' and 'Shorts'

**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 Simple Circuit Builder free?

Simple Circuit Builder is free to download, with no in-app purchases.

### Which has better reviews, AVR Tutorial or Simple Circuit Builder?

AVR Tutorial is rated higher. AVR Tutorial averages 5.0 out of 5 from 2 ratings, while Simple Circuit Builder averages 4.0 from 28 ratings.

### Do AVR Tutorial or Simple Circuit Builder have ads?

Neither AVR Tutorial nor Simple Circuit Builder shows ads.

### Which is updated more often, AVR Tutorial or Simple Circuit Builder?

AVR Tutorial ships an update every 3 months, and Simple Circuit Builder every 3 weeks. Most recently, AVR Tutorial was updated on October 5, 2026 and Simple Circuit Builder 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.*