# prisma.app vs IGA OPTIC App

The clearest difference is update cadence: prisma.app at every 3 weeks against IGA OPTIC App's every 2 months. IGA OPTIC App's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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, IGA OPTIC App every 2 months. The most recent releases landed on October 9, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | prisma.app | IGA OPTIC App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 1 MB | 41 MB |
| Requires iOS | **13.0** | 13.2 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Prisma Computer-Systeme GmbH](https://appshunter.io/developer/906455384) | [IGA-Interessengemeinschaft Augenoptik eG](https://appshunter.io/developer/1505739600) |

## What reviewers say

### prisma.app

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

**Features:** macOS Compatibility

**In-app purchases:** none


### IGA OPTIC App

[App page](https://appshunter.io/ios/app/iga-optic-app/id1505739601)

**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 IGA OPTIC App free?

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

### Do prisma.app or IGA OPTIC App have ads?

Neither prisma.app nor IGA OPTIC App shows ads.

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

prisma.app ships an update every 3 weeks, and IGA OPTIC App every 2 months. Most recently, prisma.app was updated on October 9, 2026 and IGA OPTIC App on September 28, 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.*