# Sound Sky vs RainyWave

The clearest difference is review sentiment: Sound Sky at 91% against RainyWave's 0%. RainyWave's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Sound Sky sells 4 one-off in-app purchases and RainyWave sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Sound Sky ships an update every 2 weeks, RainyWave every 4 days. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Sound Sky | RainyWave |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (341 ratings)](https://appshunter.io/ios/app/sound-sky-keep-calm-drum-on/id1170680370/reviews)** | — |
| Number of ratings | **341** | — |
| Positive reviews | **91.5% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 158 MB | 120 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HIGHKEY Games](https://appshunter.io/developer/1170680369) | [Code and DESIGN inc](https://appshunter.io/developer/1172903960) |

## What reviewers say

### Sound Sky

[App page](https://appshunter.io/ios/app/sound-sky-keep-calm-drum-on/id1170680370)

Immerse yourself in a unique rhythm game designed for stress relief and musical exploration. Master tempo and timing with meditative soundtracks and mesmerizing visuals across over 50 levels. Perfect for music enthusiasts and aspiring percussionists alike.

**Highlights:** Meditative soundtracks, Unique finger drumming experience, Over 50 levels with original music, Mesmerizing visuals, Accurate scoring for tempo and timing, Explore a universe of planets with unique songs

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pack of 3 Soundstones | $0.99 | one-time |
| Half Energy Discount (1 week) | $0.99 | one-time |
| Half Energy Discount (2 weeks) | $2.99 | one-time |
| Founder's Pack | $4.99 | one-time |

**What reviewers like**

- 😌 Highly calming and stress-relieving gameplay
- 🎵 Beautiful music and atmospheric soundtrack
- 🎨 Stunning visuals and space-themed graphics
- 🧠 Unique memory-based rhythm mechanic
- ⏱️ Perfect timing and rhythm synchronization

**What reviewers complain about**

- 📉 Limited content and levels once completed
- 🔋 High battery drain and phone overheating
- ⏳ Long download times reported
- 🔊 Harsh error sound effects when missing notes
- ⚡ Energy system limits play sessions

**Reported bugs**

- Download fails or takes excessive time
- Music and beats out of sync
- Tap inputs not registering properly
- Phone overheating during extended play
- Inconsistent rhythm detection

**Requested features**

- Add more levels and content
- Include recognizable and popular songs
- Release official soundtrack
- Allow players to select different music/sounds
- Add diverse note combinations without disappearing mechanic


### RainyWave

[App page](https://appshunter.io/ios/app/rainywave/id6499067148)

This music game lets you finger drum to LoFi, Chill Hop, and Chill Wave tracks. Enjoy automated drum sounds or real-time tapping, create your own music, and even import MIDI files. It's a relaxed way to experience music production and performance.

**Highlights:** Finger drumming to LoFi and Chill Hop tracks, Two game modes: automated drums or real-time tapping, MIDI Pad compatibility on iOS, Create original tracks with Charting Mode, Import custom MIDI files from DAWs

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RainyWave Supporters | $2.99 | per month |


## Frequently asked questions

### Is Sound Sky free?

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

### Is RainyWave free?

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

### Do Sound Sky or RainyWave have ads?

Sound Sky shows ads; RainyWave does not.

### Which is updated more often, Sound Sky or RainyWave?

Sound Sky ships an update every 2 weeks, and RainyWave every 4 days. Most recently, Sound Sky was updated on November 6, 2026 and RainyWave on November 4, 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.*