# Asterhythm vs O2Jam

The clearest difference is price: Asterhythm at Free against O2Jam's $1.99. O2Jam's advantage is in-app purchases (none vs 4) and chart position (#192 vs unranked). On update cadence, ads and device support there is nothing between them.

Asterhythm is free to download; O2Jam costs $1.99 up front. Asterhythm sells 4 one-off in-app purchases. O2Jam asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | Asterhythm | O2Jam |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (18 ratings)](https://appshunter.io/ios/app/asterhythm/id1612029903/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 days | Every 2 days |
| Monetization | Free | — |
| Best chart rank | — | **#192** |
| Size | 1.2 GB | 316 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Takumi Ito](https://appshunter.io/developer/1491836717) | [Superturbine Technology Inc.](https://appshunter.io/developer/1874231213) |

## What reviewers say

### Asterhythm

[App page](https://appshunter.io/ios/app/asterhythm/id1612029903)

Experience a unique rhythm game set among the stars, featuring a calming atmosphere and intuitive controls. Discover a touching story and master charts designed for all skill levels, from beginners to veterans.

**Highlights:** Constellation-themed note charts, Full-screen rhythm gameplay, Original story mode, Customizable note and UI settings, Offline play support, Beginner-friendly tutorial

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2,000 Pris | $0.99 | one-time |
| 5,000 Pris | $1.99 | one-time |
| 10,000 Pris | $3.99 | one-time |
| 20,000 Pris | $5.99 | one-time |


### O2Jam

[App page](https://appshunter.io/ios/app/o2jam-fruitland-lite/id6447247271)

**Currently charting:** #192 Top Paid · Music (US App Store)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Asterhythm free?

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

### Is O2Jam free?

O2Jam costs $1.99, with no in-app purchases.

### Do Asterhythm or O2Jam have ads?

Neither Asterhythm nor O2Jam shows ads.

### Which is updated more often, Asterhythm or O2Jam?

Asterhythm ships an update every 2 days, and O2Jam every 2 days. Most recently, Asterhythm was updated on November 3, 2026 and O2Jam on November 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.*