Comparison

Asterhythm vs O2Jam

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Asterhythm

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
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A world of stars, radiant yet fragile, where sound spreads out across the sky. Lights are woven into Constellations, revealing forgotten memories. "...Please, don't be sad anymore. It's a promise." A full-screen music game themed on constellations and star clusters, by StrayCubic, creator of TAKUMI³. Tap, flick, and hold in time with the notes that drift among the stars. Simple controls deliver an entirely new musical experience. ■ Especially recommended if you… ・Crave the chill, soothing feeling of gazing up at a starry night ・Want to play a rhythm game with calm, gentle tracks ・Feel a little worn out by the relentless pace and intensity of recent rhythm games ・Are looking for a fresh rhythm game using the whole screen ■ Charts drawn by constellation lines Asterhythm's defining feature is the constellation lines that connect the notes. They show you where the next note will appear so you rarely lose your way, and they trace ever-changing patterns in time with the music for a dreamlike, emotional play experience. From charts that newcomers can enjoy to ones with real bite — and even a hidden difficulty…? — Everyone is welcomed in the starry sky, from beginners to veterans. ■ Featured tracks Play songs you may well have heard before, for free. ・2:23 AM / Syarou ・Shining Star / Maoudamashii ・YOIYAMI / Keyta …and many more, including original compositions written just for the game. *The songs above become playable as you progress through the game. ■ An original story of a girl who became a star Ciellia, woken up in the vast starfields, sets on a journey to find her lost memories. Encounters and farewells, revealing her past… …Could she find out why she became a star? ■ For beginners, for enthusiasts - A step-by step tutorial, designed to learn the five note types one by one. - Wealthy customizations and configurations —- from size of notes, UI, Timings and more to tune Asterhythm for your experience. - Offline mode available —- Playable anywhere, anytime, from minutes to hours. ■ Links X (formerly Twitter): Asterhythm_jp Official hashtags: #Asterhythm #あすりず Discord: https://discord.gg/fyKwcZkdmY Website: https://asterhythm.straycubic.com/ Powered by "CRIWARE".CRIWARE is a trademark of CRI Middleware Co., Ltd.

About

O2Jam

Features
Currently charting
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Dive into a world where K-Pop, rhythm, and action meet! O2JAM Fruitland Lite - The Rhythm Game transports you to a vibrant landscape teeming with rhythm and fruits ready to be sliced to the beat of your favorite K-Pop tracks. In this exciting rhythm game, O2JAM takes you on an unforgettable journey through 300 meticulously designed stages. Each stage is a thrilling encounter with a different K-Pop track, creating a unique challenge and offering even greater rewards. O2JAM Fruitland Lite isn't just a game; it's a K-Pop-infused rhythmic adventure that tests your skill, precision, and musical prowess. Your mission? Slice the cascading fruits in perfect sync with the K-Pop beat. This rhythmic slicing creates an immersive auditory and visual K-Pop concert experience, captivating your senses and transforming your gameplay into a musical spectacle. But remember, in O2JAM Fruitland Lite, precision is key. You'll need to match the rhythm, slicing each fruit at the exact moment to maintain the melody and score big. As the stage number increases, so does the rhythm's pace. The K-Pop tracks grow more challenging, and the fruit slicing frenzy intensifies. The fruits fall faster, the beats get trickier, but the rewards grow greater. Will you conquer the rhythm and reign supreme in the K-Pop enriched world of O2JAM? Key features include: 300 meticulously crafted stages, each backed by a different K-Pop track, offering unique rhythm challenges. A progression system where difficulty and the intensity of the K-Pop music amplify as you advance. An extensive playlist of engaging K-Pop tracks that will keep you on your toes. Stunning graphics that move in harmony with the rhythm of the K-Pop beats. A casual yet engaging gameplay experience that’s easy to pick up but challenging to master. O2JAM Fruitland Lite - The Rhythm Game is a symphony of K-Pop fun and action, providing an enticing casual game experience for all K-Pop lovers, fruit slicing champions, and rhythm game enthusiasts. Download today and let the captivating rhythms of K-Pop guide your slicing spree in the world of O2JAM!

Screenshots

Asterhythm3 screens
O2Jam4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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

Scorecard4 real differences · 7 level
Asterhythm versus O2Jam: the parameters behind the verdict, then further details
ParameterAsterhythmO2Jam
PriceFree — better$1.99
Rating5.0 (18 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings18 — better—
Update frequencyEvery 2 daysEvery 2 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
Best chart rank—#192 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size1.2 GB316 MB
Age rating4+9+
DeveloperTakumi ItoSuperturbine Technology Inc.

In-app purchases

4 purchases

Asterhythm

One-time4
  • 2,000 Pris$0.99
  • 5,000 Pris$1.99
  • 10,000 Pris$3.99
Show 1 more
  • 20,000 Pris$5.99
None

O2Jam

No in-app purchases

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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