# Keven.ai vs Presets by Time Engine

The clearest difference is update cadence: Presets by Time Engine at daily against Keven.ai's every 6 weeks. Keven.ai's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.4). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Keven.ai sells 1 in-app purchase, starting at $99.00 per month and Presets by Time Engine sells 1 in-app purchase, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Keven.ai ships an update every 6 weeks, Presets by Time Engine daily. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Keven.ai | Presets by Time Engine |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Daily** |
| Size | 26 MB | 4 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Keven, Inc.](https://appshunter.io/developer/1700375826) | [100-8 Studio](https://appshunter.io/developer/1436780503) |

## What reviewers say

### Keven.ai

[App page](https://appshunter.io/ios/app/kevenai/id6456264255)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $99.00 | per month |


### Presets by Time Engine

[App page](https://appshunter.io/ios/app/presets-by-time-engine/id6471368225)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Presets Pro | $6.99 | per month |


## Frequently asked questions

### Is Keven.ai free?

Keven.ai is free to download, with in-app purchases available.

### Is Presets by Time Engine free?

Presets by Time Engine is free to download, with in-app purchases available.

### Do Keven.ai or Presets by Time Engine have ads?

Neither Keven.ai nor Presets by Time Engine shows ads.

### Which is updated more often, Keven.ai or Presets by Time Engine?

Keven.ai ships an update every 6 weeks, and Presets by Time Engine daily. Most recently, Keven.ai was updated on October 25, 2026 and Presets by Time Engine 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.*