# AVR Projects vs Learning transistor

AVR Projects and Learning transistor are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. AVR Projects sells 10 one-off in-app purchases and Learning transistor sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | AVR Projects | Learning transistor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Daily | — |
| Size | 20 MB | 1 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Zaw Win Myat](https://appshunter.io/developer/1800881321) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## What reviewers say

### 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 |


### Learning transistor

[App page](https://appshunter.io/ios/app/learning-transistor/id6792466363)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $4.99 | one-time |


## Frequently asked questions

### Is AVR Projects free?

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

### Is Learning transistor free?

Learning transistor is free to download, with in-app purchases available.

### Do AVR Projects or Learning transistor have ads?

Neither AVR Projects nor Learning transistor shows ads.

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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.*