# CircuitShepherd vs QIDI Box NFC Tagger

The clearest difference is price: CircuitShepherd at Free against QIDI Box NFC Tagger's $0.99. CircuitShepherd also leads on iOS requirement (14.0 vs 26.0). QIDI Box NFC Tagger's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

CircuitShepherd is free to download; QIDI Box NFC Tagger costs $0.99 up front. CircuitShepherd sells 1 in-app purchase, starting at $6.99 per month. QIDI Box NFC Tagger asks for nothing beyond the download.

## The numbers

| Metric | CircuitShepherd | QIDI Box NFC Tagger |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[1.5 (2 ratings)](https://appshunter.io/ios/app/circuitshepherd/id1598606653/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 2 MB |
| Requires iOS | **14.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Josef Woess](https://appshunter.io/developer/1597520399) | [AYEFON.COM](https://appshunter.io/developer/286243731) |

## What reviewers say

### CircuitShepherd

[App page](https://appshunter.io/ios/app/circuitshepherd/id1598606653)

Automate electronic circuit design with AI-driven parameter optimization. Define schematics and design goals, and the software finds optimal part values in real-time. Save time on calculations and iterations with this intuitive tool.

**Highlights:** Automated parameter optimization, AI-driven circuit engineering, Real-time design goal finding, Intuitive user interface, Schematic definition, Part value calculation

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| full version | $6.99 | per month |


### QIDI Box NFC Tagger

[App page](https://appshunter.io/ios/app/qidi-box-nfc-tagger/id6764367088)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CircuitShepherd free?

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

### Is QIDI Box NFC Tagger free?

QIDI Box NFC Tagger costs $0.99, with no in-app purchases.

### Do CircuitShepherd or QIDI Box NFC Tagger have ads?

Neither CircuitShepherd nor QIDI Box NFC Tagger 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.*