# prisma.app vs Optiswiss App

The clearest difference is update cadence: prisma.app at every 3 weeks against Optiswiss App's every 3 months. 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.

prisma.app ships an update every 3 weeks, Optiswiss App every 3 months. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | prisma.app | Optiswiss App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 1 MB | 764 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPad | iPad |
| Age rating | 17+ | 4+ |
| Developer | [Prisma Computer-Systeme GmbH](https://appshunter.io/developer/906455384) | [Suxesiv](https://appshunter.io/developer/531604457) |

## What reviewers say

### prisma.app

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Optiswiss App

[App page](https://appshunter.io/ios/app/optiswiss-app/id909256164)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is prisma.app free?

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

### Is Optiswiss App free?

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

### Do prisma.app or Optiswiss App have ads?

Neither prisma.app nor Optiswiss App shows ads.

### Which is updated more often, prisma.app or Optiswiss App?

prisma.app ships an update every 3 weeks, and Optiswiss App every 3 months. Most recently, prisma.app was updated on October 9, 2026 and Optiswiss App on October 7, 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.*