# prisma.app vs Sensitivity Tests

prisma.app and Sensitivity Tests are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

prisma.app ships an update every 3 weeks, Sensitivity Tests every 5 weeks. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | prisma.app | Sensitivity Tests |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Size | 1 MB | 105 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPad | iPad |
| Age rating | 17+ | 4+ |
| Developer | [Prisma Computer-Systeme GmbH](https://appshunter.io/developer/906455384) | [Nikon Optical USA](https://appshunter.io/developer/566202027) |

## What reviewers say

### prisma.app

[App page](https://appshunter.io/ios/app/prismaapp/id906455381)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sensitivity Tests

[App page](https://appshunter.io/ios/app/sensitivity-tests/id1338466692)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is prisma.app free?

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

### Is Sensitivity Tests free?

Sensitivity Tests is free to download, with no in-app purchases.

### Do prisma.app or Sensitivity Tests have ads?

Neither prisma.app nor Sensitivity Tests shows ads.

### Which is updated more often, prisma.app or Sensitivity Tests?

prisma.app ships an update every 3 weeks, and Sensitivity Tests every 5 weeks. Most recently, prisma.app was updated on October 9, 2026 and Sensitivity Tests on October 5, 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.*