# Kontrii vs PrismaU

The clearest difference is iOS requirement: Kontrii at 13.0 against PrismaU's 16.4. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 30, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Kontrii | PrismaU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 41 MB | 51 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Investincol](https://appshunter.io/developer/1223626307) | [Javier Emilio Sierra](https://appshunter.io/developer/1738948557) |

## What reviewers say

### Kontrii

[App page](https://appshunter.io/ios/app/kontrii/id6502848240)

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

**In-app purchases:** none


### PrismaU

[App page](https://appshunter.io/ios/app/prismau/id6514323886)

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

**In-app purchases:** none


## Frequently asked questions

### Is Kontrii free?

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

### Is PrismaU free?

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

### Do Kontrii or PrismaU have ads?

Neither Kontrii nor PrismaU shows ads.

### Which is updated more often, Kontrii or PrismaU?

Kontrii ships an update every 3 weeks, and PrismaU every 3 weeks. Most recently, Kontrii was updated on October 30, 2026 and PrismaU on September 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.*