# ONOMATOPIA vs SkySling

The clearest difference is in-app purchases: SkySling at none against ONOMATOPIA's 15. SkySling also leads on ads (none vs shown) and update cadence (daily vs every 10 days). ONOMATOPIA's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 26.2). On price there is nothing between them.

Both are free to download. ONOMATOPIA sells 12 in-app purchases, starting at $19.99 per year. SkySling asks for nothing beyond the download.

ONOMATOPIA ships an update every 10 days, SkySling daily. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ONOMATOPIA | SkySling |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/onomatopia/id6738948087/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 241 MB | 4 MB |
| Requires iOS | **13.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ENDROLL, K.K](https://appshunter.io/developer/1395441964) | [toshihiko sakusabe](https://appshunter.io/developer/1876203182) |

## What reviewers say

### ONOMATOPIA

[App page](https://appshunter.io/ios/app/onomatopia/id6738948087)

Build a peaceful island world with adorable creatures that create relaxing sounds. Mix nature and creature melodies to craft unique soundscapes for studying, sleeping, or unwinding. Collect and bond with creatures as your island grows, even when you're away.

**Highlights:** Create custom soundscapes, Collect and bond with creatures, Idle island growth, Discover unique creature personalities, Over 350 million sound combinations

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grand Maestro (1-Year Plan) | $19.99 | per year |
| Full Energy Recharge | $0.99 | one-time |
| Start Dash | $1.99 | one-time |
| This Month's Mission Pass | $2.99 | one-time |
| Premium Gacha Coins x3 | $3.99 | one-time |
| Ad Coupons x100 | $3.99 | one-time |
| Matopi Time EX | $3.99 | one-time |
| Start Dash++ | $4.99 | one-time |
| Matopi Mania | $5.99 | one-time |
| Premium Gacha Coins x3 | $5.99 | one-time |
| Matopi Time EX | $5.99 | one-time |
| Big Spender | $8.99 | one-time |


### SkySling

[App page](https://appshunter.io/ios/app/skysling/id6759912250)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ONOMATOPIA free?

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

### Is SkySling free?

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

### Do ONOMATOPIA or SkySling have ads?

ONOMATOPIA shows ads; SkySling does not.

### Which is updated more often, ONOMATOPIA or SkySling?

ONOMATOPIA ships an update every 10 days, and SkySling daily. Most recently, ONOMATOPIA was updated on October 19, 2026 and SkySling on October 3, 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.*