# zeptrion vs Knockaut Titan Ultimate

The clearest difference is update cadence: Knockaut Titan Ultimate at every 2 months against zeptrion's every 6 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.

zeptrion ships an update every 6 months, Knockaut Titan Ultimate every 2 months. The most recent releases landed on October 19, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | zeptrion | Knockaut Titan Ultimate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Size | 14 MB | 73 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Feller AG](https://appshunter.io/developer/525095492) | [Brelag Schweiz AG](https://appshunter.io/developer/1243505399) |

## What reviewers say

### zeptrion

[App page](https://appshunter.io/ios/app/zeptrion/id877577147)

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

**In-app purchases:** none


### Knockaut Titan Ultimate

[App page](https://appshunter.io/ios/app/knockaut-titan-ultimate/id1540121768)

**In-app purchases:** none


## Frequently asked questions

### Is zeptrion free?

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

### Is Knockaut Titan Ultimate free?

Knockaut Titan Ultimate is free to download, with no in-app purchases.

### Do zeptrion or Knockaut Titan Ultimate have ads?

Neither zeptrion nor Knockaut Titan Ultimate shows ads.

### Which is updated more often, zeptrion or Knockaut Titan Ultimate?

zeptrion ships an update every 6 months, and Knockaut Titan Ultimate every 2 months. Most recently, zeptrion was updated on October 19, 2026 and Knockaut Titan Ultimate on October 27, 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.*