# Aemster vs The KN.APP

The clearest difference is in-app purchases: Aemster at none against The KN.APP's 2. The KN.APP's advantage is update cadence (every 3 months vs every 10 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. The KN.APP sells 2 in-app purchases, starting at $6.99 per month. Aemster asks for nothing beyond the download.

Aemster ships an update every 10 months, The KN.APP every 3 months. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Aemster | The KN.APP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 months** |
| Size | 5 MB | 112 MB |
| Requires iOS | **15.6** | 16 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dreamy Delta](https://appshunter.io/developer/1572623510) | [Knaap Bikes](https://appshunter.io/developer/1643123476) |

## What reviewers say

### Aemster

[App page](https://appshunter.io/ios/app/aemster/id1572623508)

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

**In-app purchases:** none


### The KN.APP

[App page](https://appshunter.io/ios/app/the-knapp/id6476815813)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Tracking Features | $6.99 | per month |
| Annual Tracking Features | $79.99 | per year |


## Frequently asked questions

### Is Aemster free?

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

### Is The KN.APP free?

The KN.APP is free to download, with in-app purchases available.

### Do Aemster or The KN.APP have ads?

Neither Aemster nor The KN.APP shows ads.

### Which is updated more often, Aemster or The KN.APP?

Aemster ships an update every 10 months, and The KN.APP every 3 months. Most recently, Aemster was updated on October 4, 2026 and The KN.APP on October 1, 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.*