# Electronics Tools & Calculator vs AVR Projects

The clearest difference is in-app purchases: Electronics Tools & Calculator at none against AVR Projects's 10. Electronics Tools & Calculator also leads on iOS requirement (15.0 vs 17.0). AVR Projects's advantage is ads (none vs shown) and update cadence (daily vs every 6 weeks). On price and device support there is nothing between them.

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

Electronics Tools & Calculator ships an update every 6 weeks, AVR Projects daily. The most recent releases landed on October 13, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Electronics Tools & Calculator | AVR Projects |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (16 ratings)](https://appshunter.io/ios/app/electronics-tools-and-calculator/id1581885136/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Daily** |
| Monetization | Free | — |
| Size | 63 MB | 20 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Anas Abubakar](https://appshunter.io/developer/1581534101) | [Zaw Win Myat](https://appshunter.io/developer/1800881321) |

## What reviewers say

### Electronics Tools & Calculator

[App page](https://appshunter.io/ios/app/electronics-tools-and-calculator/id1581885136)

This app serves as a pocket-sized electronics lab, offering a comprehensive reference for components and circuits. It simplifies complex calculations for filters, inductors, and various circuit configurations, aiding both engineers and hobbyists in their design processes.

**Highlights:** Electronic component reference, Electronic circuit reference, Filter design calculators, Inductor winding calculators, Transformer winding calculators, Resistor and capacitor calculations, Ohm's law and power calculations

**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 Electronics Tools & Calculator free?

Electronics Tools & 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 Electronics Tools & Calculator or AVR Projects have ads?

Electronics Tools & Calculator shows ads; AVR Projects does not.

### Which is updated more often, Electronics Tools & Calculator or AVR Projects?

Electronics Tools & Calculator ships an update every 6 weeks, and AVR Projects daily. Most recently, Electronics Tools & Calculator was updated on October 13, 2026 and AVR Projects 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.*