# AVR Tutorial vs Circuit Resistance Creator

The clearest difference is in-app purchases: Circuit Resistance Creator at none against AVR Tutorial's 10. Circuit Resistance Creator also leads on review sentiment (100% vs 75%) and update cadence (every 3 weeks vs every 3 months). AVR Tutorial's advantage is iOS requirement (9.0 vs 14.0). 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. Circuit Resistance Creator 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 Circuit Resistance Creator. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews are what separate them: 75% of AVR Tutorial's written reviews are positive against 100% of Circuit Resistance Creator's.

AVR Tutorial ships an update every 3 months, Circuit Resistance Creator every 3 weeks. The most recent releases landed on October 5, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | AVR Tutorial | Circuit Resistance Creator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/avr-tutorial/id1070496499/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/circuit-resistance-creator/id1475404949/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | 75.0% of reviews | **100.0% 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 | 15 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 |


### Circuit Resistance Creator

[App page](https://appshunter.io/ios/app/circuit-resistance-creator/id1475404949)

Calculate equivalent resistance for any resistor circuit. This tool is designed for students, technicians, and engineers, offering high accuracy for voltage, current, and resistance. It's a great way to check homework and perform engineering calculations.

**Highlights:** Equivalent resistance calculation, Supports any resistor circuit, High accuracy displays (6 decimal places), Apply custom circuit voltages, Designed for students and engineers, Homework checking tool

**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 Circuit Resistance Creator free?

Circuit Resistance Creator is free to download, with no in-app purchases.

### Which has better reviews, AVR Tutorial or Circuit Resistance Creator?

AVR Tutorial and Circuit Resistance Creator are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do AVR Tutorial or Circuit Resistance Creator have ads?

Neither AVR Tutorial nor Circuit Resistance Creator shows ads.

### Which is updated more often, AVR Tutorial or Circuit Resistance Creator?

AVR Tutorial ships an update every 3 months, and Circuit Resistance Creator every 3 weeks. Most recently, AVR Tutorial was updated on October 5, 2026 and Circuit Resistance Creator on September 26, 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.*