Comparison

OCO vs Project

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

Head to head
About

OCO

Engage in a captivating one-touch puzzle-platformer with over 7000 levels. Master simple controls to navigate challenging environments, create your own levels, and enjoy a unique audio-visual experience. Compete in daily challenges and strive for perfect solutions.

Highlights
  • Simple one-touch controls
  • Over 7000 challenging puzzles
  • Level editor and sharing system
  • Daily challenges
  • Minimalist design
  • Procedurally-generated soundtrack
Features
Read full description

“OCO is an exceptionally clever one-touch puzzle-platformer” 8/10 Pocket Gamer “Gloriously addictive and intelligent puzzles” 8/10 Touch Arcade Immerse yourself in the beautiful audio-visual world of OCO Use simple one-touch controls to launch, rush, crash, glide, warp, and hang as you solve over 7000 fast-paced platforming puzzles FEATURES • Simple one-touch controls • Complex challenging puzzles • Precision platforming • 7000 hand-selected player-created levels • Create and share levels using OCO jpg levels system • Beautiful minimal design • Procedurally-generated soundtrack for every level • Built-in editor • Daily challenges • 'Discord' community • ‘Perfect solution’ challenges for all levels • 46 achievements AWARDS • Finalist 'Pocket Gamer People’s Choice Award', 2020 • Runner-up ‘Big Indie Pitch’, Develop, Brighton, 2018 • Finalist ‘Very Big Indie Pitch’ Pocket Gamer Connects, London, 2017

About

Project

Experience an innovative music game where every tap triggers original electronic sounds. Engage in rhythm gameplay with unique multi-track challenges, diverse music styles, and customizable characters. Compete with friends and players worldwide in this visually rich experience.

Highlights
  • Rhythm gameplay with real-time pronunciation
  • Original independent electronic music
  • Multi-track music challenges
  • Diverse and updated music styles
  • Customizable characters and skins
  • Global player competition
  • Potential visual improvement for amblyopia
Read full description

It was an incredible music game in a different way! Every note, every voice is respond to your tap! Game Features: • Rhythm gameplay, innovative real-time key pronunciation. • Original Independent electronic music producer. • Innovative multi track music games. • Different styles of electronic music, constantly updated. • Cool and rich themed skins with unparalleled visual effects. • 40 characters with different personalities, all with their own characteristics. • Selected theme song package, take you into the characters of the story. • Personalized persona space. • Compete with friends and global players. • Apple's full device support, with full resolution. • The rhythm of the electronic sound, and the players have an emotional resonance. • This Game Obvious Improvement On Amblyopiapia. Game rules: • Tap the note while following the rhyme, ensure to get perfect. • Don't miss a note, hit combos and hit perfectly to get high scores. ◆ Best experience with headphones. ◆ Hope you to enjoy the game! ◆ Thanks to the game icon p. Muse-- Emily made by the player "SmolAntBoi"! ◆ Thanks to ColBreakz, Blaver, KODOMOi, Akako Hinami, Yan Dongwei and other famous music producers. ◆ VIDEO: https://youtu.be/g1IFnIAZhTg ◆ Facebook: https://www.facebook.com/RinzzGame ◆ This Game Obvious Improvement On Amblyopiapia Instructions on the use of amblyopia / hyperopia training: 1: First, you need to choose special skin for [amblyopia / hyperopia] in the game (those with normal vision are not recommended) 2: The principle of hyperopia is to increase vision by using the sensitivity of awakening visual cells such as red light, blue light, lattice light and afterimage light to stimulate eyeball development and enhance vision. ◆ Disclaimer: “Project: Muse” is a free game,but it involves optional VIP and selected packages paid service and some game props need to be paid for. ◆ Please visit the following links for terms of use and privacy policy: Terms of use: https://rinzz.com/oho/privacy-policy/ Privacy policy: https://rinzz.com/oho/privacy-policy/

Screenshots

OCO4 screens
Project4 screens

Verdict

The call

The clearest difference is chart position: OCO at #155 against Project's unranked. Project's advantage is iOS requirement (12.0 vs 15.0). On price, rating, review sentiment and ratings volume 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. OCO sells 8 one-off in-app purchases and Project sells 18 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for OCO against 4.6 for Project. Both are backed by a comparable volume of ratings — 2.4K and 1.5K respectively. Written reviews split almost evenly too, at 73% and 72% positive.

UpkeepUpdate frequency

OCO ships an update every 5 weeks, Project monthly. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

Scorecard2 real differences · 9 level
OCO versus Project: the parameters behind the verdict, then further details
ParameterOCOProject
PriceFreeFree
Rating4.6 (2.4K ratings)4.6 (1.5K ratings)
Positive reviews73.0% of reviews — better72.4% of reviews
Number of ratings2.4K — better1.5K
Update frequencyEvery 5 weeksMonthly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#155 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size113 MB1.2 GB
Age rating4+9+
DeveloperSPECTRUM48 LIMITEDRinzz Co. Ltd.

Customer experience

OCO

All ratings2,367 ratings
Positive92.5%
Neutral3.6%
Negative3.9%
Written reviews196 reviews
Positive73.0%
Neutral9.2%
Negative17.9%

Project

All ratings1,476 ratings
Positive90.8%
Neutral4.1%
Negative5.1%
Written reviews250 reviews
Positive72.4%
Neutral12.4%
Negative15.2%

User reviews

OCO

From 2.4K App Store ratings

What we love

  • 👍 Smooth gameplay
  • 🎨 Visually appealing
  • 🎵 Great music/sound design
  • 🧠 Challenging puzzles
  • 🔓 Minimal ads

Room to improve

  • 🐛 Frequent crashes/bugs
  • 💰 Paywalls/in-app purchases
  • 🤢 Can cause motion sickness
  • 🔍 Restart level button hard to access
  • 🕰️ Perfect time scores don't make sense

Project

From 1.5K App Store ratings

What we love

  • 🎨 Beautiful visuals and character designs
  • 🎵 Catchy and enjoyable music
  • 🕹️ Fun and challenging gameplay
  • 👍 Addictive and engaging experience

Room to improve

  • 🐛 Bugs and glitches (note sync issues, crashes, freezes)
  • 💰 Excessive in-app purchases and paywalls
  • 🔇 Sound issues (music cutting out)
  • 🤯 Difficulty spike for newer players

Bugs and requests

OCO

Reported bugs

4 issues
  • Game crashes on startup after updates
  • Slow mode issue prevents level uploads
  • Levels sometimes can't be opened
  • Losing progress/data after updates

Requested features

5 requests
  • Add different beat/music options
  • Allow liking levels without completing them
  • Improve level saving/loading
  • Add more block types (traps, flippers, etc.)
  • Bring back online features

Project

Reported bugs

4 issues
  • Levels/songs getting locked after updates
  • Inconsistent note registration on 4-lane sections
  • SOS feature not working as intended
  • Progress/data loss after reinstalling the app

Requested features

4 requests
  • Practice mode for individual song sections
  • More frequent content updates
  • Ability to restore previously purchased content
  • Improved calibration and note detection

In-app purchases

8 purchases

OCO

One-time8
  • NO ADSFree
  • x 2000 bits$0.99
  • x 5000 bits$0.99
Show 5 more
  • Remove ads$1.99
  • x 8000 bits$2.99
  • OCO pro$2.99
  • x 30000 bits$4.99
  • x 100000 bits$9.99
18 purchases

Project

One-time18
  • New Journey - Coins Pack$0.99
  • Green Light - Package A$0.99
  • New Player Bonus$0.99
Show 15 more
  • Lucky Coin Package$0.99
  • Unlimited Energy$1.99
  • Skin package$2.99
  • Fall Harvest Day Anecdote$2.99
  • The Holy Night Expedition$2.99
  • Lucky Snowy Cloud Nation$2.99
  • Forest Rhapsody$2.99
  • Journey To Another World$2.99
  • Cherry Blossom Dreams$2.99
  • Time Gala: Mystery Tracker$2.99
  • Eve Ritual: King Project$2.99
  • Summer Escape Plan$2.99
  • On The Way - Coins Pack$3.99
  • VIP PACK$5.99
  • Sparks Fly - Coins Pack$8.99

Questions

Is OCO free?
OCO is free to download, with in-app purchases available.
Is Project free?
Project is free to download, with in-app purchases available.
Which has better reviews, OCO or Project?
OCO and Project are both rated 4.6 out of 5 on the App Store, from 2.4K and 1.5K ratings respectively.
Do OCO or Project have ads?
Both OCO and Project show ads.
Which is updated more often, OCO or Project?
OCO ships an update every 5 weeks, and Project monthly. Most recently, OCO was updated on September 23, 2026 and Project on September 22, 2026.

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