# Seaside Sonata vs Kaeps

The clearest difference is in-app purchases: Seaside Sonata at none against Kaeps's 2. Seaside Sonata also leads on iOS requirement (15.0 vs 17.6). Kaeps's advantage is update cadence (daily vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Kaeps sells 2 one-off in-app purchases. Seaside Sonata asks for nothing beyond the download.

Seaside Sonata ships an update every 2 months, Kaeps daily. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Seaside Sonata | Kaeps |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Size | 62 MB | 5 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [e-Smart System](https://appshunter.io/developer/1382513704) | [TENG-WEI Huang](https://appshunter.io/developer/1678678432) |

## What reviewers say

### Seaside Sonata

[App page](https://appshunter.io/ios/app/seaside-sonata/id1591537859)

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

**In-app purchases:** none


### Kaeps

[App page](https://appshunter.io/ios/app/kaeps/id6759491386)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 買斷方案 | $0.99 | one-time |
| Ultra 方案買斷 | $2.99 | one-time |


## Frequently asked questions

### Is Seaside Sonata free?

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

### Is Kaeps free?

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

### Do Seaside Sonata or Kaeps have ads?

Neither Seaside Sonata nor Kaeps shows ads.

### Which is updated more often, Seaside Sonata or Kaeps?

Seaside Sonata ships an update every 2 months, and Kaeps daily. Most recently, Seaside Sonata was updated on October 16, 2026 and Kaeps on October 19, 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.*