Comparison

O vs Shape Rhythm

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

Head to head
About

O

Navigate a spinning circle through challenging obstacles in this minimal action runner. Levels dynamically change direction and flip, testing your reflexes. Compete globally and unlock customizations.

Highlights
  • One-tap gameplay
  • Mind-bending geometry
  • Randomly generated levels
  • Chiptune soundtrack
  • Unlockable customizations
  • Global leaderboards
Features
Read full description

Jump into the spinning circle of O-VOID! In this super minimal action runner, you’ll be jumping over obstacles with the tap of a finger. But this is not a regular platformer! The entire level can change direction or flip upside down to throw you off. Are you skilled enough to survive every challenge? Features: • Simple one-tap gameplay inside mind-bending geometry • 7 randomly generated levels for endless replayability • Unique and pumping chiptune soundtrack • Near impossible challenges to unlock player customizations • Global leaderboards to compete with the world on

About

Shape Rhythm

Experience a unique co-op musical bullet hell game. Dance through chaotic scenarios, avoiding dynamic shapes while grooving to catchy beats. Play solo or team up with friends for an exhilarating rhythm and mayhem fusion.

Highlights
  • Cooperative musical bullet hell
  • Rhythm game fusion
  • Intense and accessible gameplay
  • Cooperative story mode
  • Challenge runs
  • Mesmerizing soundtrack and visuals
  • Online and split-screen co-op
Features
Read full description

Immerse yourself in the pulsating world of Shape Rhythm, a revolutionary co-op musical experience where chaos meets collaboration. Dance through bullet hell scenarios, avoiding dynamic Shapes while grooving to kick-ass Beats in a symphony of rhythm and mayhem. Whether braving the challenge alone or uniting with friends, Shape Rhythm introduces a unique spin to the SHMUP genre, merging the intensity of bullet hell with the magic of cooperative gameplay. Shape Rhythm is not just a game; it's a symphony of shapes, beats, and collaboration that delivers an exhilarating and accessible musical bullet hell experience. Game Features: Chaotic Co-op Musical Bullet Hell: Navigate a mesmerizing world where Shapes and Beats collide in a chaotic dance. Rhythm Game Fusion: Experience the fusion of a bullet hell shoot-'em-up with the exhilaration of a rhythm game. Intense and Accessible Gameplay: Escape alive, feel the growing desire for survival, and immerse yourself in the catchy soundtrack that accompanies the action. In-App Features: Cooperative Story Mode and Challenge Runs: Take on Challenge Runs for an extra layer of difficulty and compete for high scores with friends or players worldwide. Mesmerizing Soundtrack and Visuals: Delight in clear and pleasant visuals, finding the perfect balance between challenge and accessibility. Dynamic Difficulty with Nice Tunes: Revel in nice tunes as you progress through levels, creating an immersive and enjoyable gaming experience. Player Modes: Single-player; Online PvP; Shared/Split Screen PvP; Online Co-op; Shared/Split Screen Co-op. Dance to the rhythm, avoid the shapes, and immerse yourself in the harmonious chaos of Shape Rhythm.

Screenshots

O4 screens
Shape Rhythm4 screens

Verdict

The call

The clearest difference is update cadence: O at weekly against Shape Rhythm's every 7 months. O also leads on rating (4.6 vs 4.2) and review sentiment (72% vs 48%). On price, ratings volume, ads and in-app purchases 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

Both are free to download. O sells 1 one-off in-app purchase and Shape Rhythm sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

O holds the better App Store score, 4.6 against 4.2. Both are backed by a comparable volume of ratings — 191 and 195 respectively. Written reviews point the same way: 72% of O's written reviews are positive against 48% of Shape Rhythm's.

UpkeepUpdate frequency

O ships an update weekly, Shape Rhythm every 7 months. The most recent releases landed on September 26, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 7 level
O versus Shape Rhythm: the parameters behind the verdict, then further details
ParameterOShape Rhythm
PriceFreeFree
Rating4.6 (191 ratings) — better4.2 (195 ratings)
Positive reviews72.4% of reviews — better48.4% of reviews
Number of ratings191195 — better
Update frequencyWeekly — betterEvery 7 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size43 MB206 MB
Age rating4+9+
DeveloperGearhead Games ApSLam Dao Thi Thanh

Customer experience

O

All ratings191 ratings
Positive90.6%
Neutral3.1%
Negative6.3%
Written reviews58 reviews
Positive72.4%
Neutral10.3%
Negative17.2%

Shape Rhythm

All ratings195 ratings
Positive79.5%
Neutral4.6%
Negative15.9%
Written reviews91 reviews
Positive48.4%
Neutral13.2%
Negative38.5%

User reviews

O

From 191 App Store ratings

What we love

  • 🎶 Great music/soundtrack
  • 🎮 Challenging and satisfying gameplay
  • 💡 Innovative game mechanics
  • 💯 High skill ceiling/mastery
  • ✨ Simple yet addictive

Room to improve

  • 😵 Dizzying/makes users sick
  • 🥵 Extremely difficult/too hard
  • ⏳ Too short/lacks content
  • 😵‍💫 Trippy and weird visuals
  • 🤢 Makes users feel sick

Shape Rhythm

From 195 App Store ratings

What we love

  • 🎶 Great music and beats
  • 🎮 Fun gameplay
  • 📱 Good mobile port of JSAB
  • 👍 Well-made and entertaining
  • ✨ Cool graphics

Room to improve

  • 광고 Excessive ads
  • 📉 Poorly made
  • ⚠️ Unpredictable attacks
  • 😵 Annoying ads during gameplay
  • 🗑️ Bootleg/Rip-off game

Bugs and requests

O

Reported bugs

9 issues
  • Spinning makes users sick
  • Obstacles in later levels require luck/insane reaction time
  • Effect does not disappear properly in penultimate level
  • Game is glitchy, laggy, and unresponsive
  • Revive ad doesn't work/can't close ad
Show 4 more
  • Ads during gameplay cause freezes
  • Level 6 is impossible
  • Ads are annoying and unsolicited
  • Forced ads when choosing to restart

Requested features

6 requests
  • Add more levels
  • New dimension/different gameplay principle
  • User level creator
  • More beats/music synchronization
  • Option to turn down color brightness
Show 1 more
  • More publicity for leaderboards

Shape Rhythm

Reported bugs

8 issues
  • Keeps crashing
  • Game crashes occasionally
  • Game freezes after ad
  • Ad turns off all sounds
  • Game bugs and doesn't let you play
Show 3 more
  • Attacks are unpredictable
  • Game lags or crashes
  • No audio

Requested features

10 requests
  • Add more songs
  • Add story mode and bosses
  • Extend 'together forever'
  • Make it a bit easier
  • Show which is the boss and which is normal
Show 5 more
  • Add more levels and updates
  • Improve indications for obstacles
  • Make ads less frequent or optional
  • Add more stages
  • Make it less difficult

In-app purchases

1 purchases

O

One-time1
  • No Ads$2.99
1 purchases

Shape Rhythm

One-time1
  • Remove Ads$1.99

Questions

Is O free?
O is free to download, with in-app purchases available.
Is Shape Rhythm free?
Shape Rhythm is free to download, with in-app purchases available.
Which has better reviews, O or Shape Rhythm?
O is rated higher. O averages 4.6 out of 5 from 191 ratings, while Shape Rhythm averages 4.2 from 195 ratings.
Do O or Shape Rhythm have ads?
Both O and Shape Rhythm show ads.
Which is updated more often, O or Shape Rhythm?
O ships an update weekly, and Shape Rhythm every 7 months. Most recently, O was updated on September 26, 2026 and Shape Rhythm on September 30, 2026.

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