# Electronic Circuits Calculator vs AVR Projects

The clearest difference is in-app purchases: Electronic Circuits Calculator at none against AVR Projects's 10. AVR Projects's advantage is ads (none vs shown) and update cadence (daily vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. AVR Projects sells 10 one-off in-app purchases. Electronic Circuits Calculator asks for nothing beyond the download.

Electronic Circuits Calculator ships an update every 2 months, AVR Projects daily. The most recent releases landed on September 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Electronic Circuits Calculator | AVR Projects |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Ad-supported | — |
| Size | 21 MB | 20 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ALG Software Lab](https://appshunter.io/developer/1650561236) | [Zaw Win Myat](https://appshunter.io/developer/1800881321) |

## What reviewers say

### Electronic Circuits Calculator

[App page](https://appshunter.io/ios/app/electronic-circuits-calculator/id6444422711)

This comprehensive electronics toolkit offers over 130 interactive calculators, circuit tools, and guides. It's designed for users of all levels, from beginners to professionals, to assist with learning, prototyping, and quick calculations in electronics engineering.

**Highlights:** Over 130 interactive calculators, Circuit tools and guides, Step-by-step explanations and formulas, Ideal for learning and prototyping, Light and dark mode support, Available in 14 languages

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### AVR Projects

[App page](https://appshunter.io/ios/app/avr-projects/id6745124011)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| R2R Ladder DAC | $0.99 | one-time |
| Sawtooth Waveform | $0.99 | one-time |
| Triangular Waveform | $0.99 | one-time |
| Sine Waveform | $0.99 | one-time |
| Ammeter AVR | $0.99 | one-time |
| 4x3 Matrix Keypad | $0.99 | one-time |
| Ohm Meter AVR | $0.99 | one-time |
| Voltmeter AVR | $0.99 | one-time |
| TM1637 Interfacing with AVR | $0.99 | one-time |
| Graphic LCD Interfacing | $0.99 | one-time |


## Frequently asked questions

### Is Electronic Circuits Calculator free?

Electronic Circuits Calculator is free to download, with no in-app purchases.

### Is AVR Projects free?

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

### Do Electronic Circuits Calculator or AVR Projects have ads?

Electronic Circuits Calculator shows ads; AVR Projects does not.

### Which is updated more often, Electronic Circuits Calculator or AVR Projects?

Electronic Circuits Calculator ships an update every 2 months, and AVR Projects daily. Most recently, Electronic Circuits Calculator was updated on September 24, 2026 and AVR Projects on October 12, 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.*