# Peaktime vs 루딘프

The clearest difference is update cadence: Peaktime at every 2 days against 루딘프's every 11 days. 루딘프's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price, 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.

Peaktime ships an update every 2 days, 루딘프 every 11 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Peaktime | 루딘프 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 11 days |
| Size | 152 MB | 60 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Jungwon Lee](https://appshunter.io/developer/1638713445) | [Seung Hyun Oh](https://appshunter.io/developer/1896164753) |

## What reviewers say

### Peaktime

[App page](https://appshunter.io/ios/app/peaktime/id6763310049)

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

**In-app purchases:** none


### 루딘프

[App page](https://appshunter.io/ios/app/ai/id6766019247)

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

**In-app purchases:** none


## Frequently asked questions

### Is Peaktime free?

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

### Is 루딘프 free?

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

### Do Peaktime or 루딘프 have ads?

Neither Peaktime nor 루딘프 shows ads.

### Which is updated more often, Peaktime or 루딘프?

Peaktime ships an update every 2 days, and 루딘프 every 11 days. Most recently, Peaktime was updated on October 28, 2026 and 루딘프 on October 25, 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.*