# SA Exchange vs PerdixPro Fieldbook

The clearest difference is update cadence: SA Exchange at every 3 days against PerdixPro Fieldbook's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SA Exchange ships an update every 3 days, PerdixPro Fieldbook every 3 weeks. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | SA Exchange | PerdixPro Fieldbook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 84 MB | 56 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SOIL ASSOCIATION LIMITED(THE)](https://appshunter.io/developer/1634383719) | [Perdix Wildlife Solutions Ltd](https://appshunter.io/developer/1646419976) |

## What reviewers say

### SA Exchange

[App page](https://appshunter.io/ios/app/sa-exchange/id1659874548)

**Features:** Vision Pro support

**In-app purchases:** none


### PerdixPro Fieldbook

[App page](https://appshunter.io/ios/app/perdixpro-fieldbook/id6737803302)

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

**In-app purchases:** none


## Frequently asked questions

### Is SA Exchange free?

SA Exchange is free to download, with no in-app purchases.

### Is PerdixPro Fieldbook free?

PerdixPro Fieldbook is free to download, with no in-app purchases.

### Do SA Exchange or PerdixPro Fieldbook have ads?

Neither SA Exchange nor PerdixPro Fieldbook shows ads.

### Which is updated more often, SA Exchange or PerdixPro Fieldbook?

SA Exchange ships an update every 3 days, and PerdixPro Fieldbook every 3 weeks. Most recently, SA Exchange was updated on October 24, 2026 and PerdixPro Fieldbook on October 18, 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.*