Comparison

OCO vs ston

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

ston

This is a minimalist puzzle game with a unique design. It challenges your brain with mind-blowing levels and no time or move limits, allowing for a relaxing experience.

Highlights
  • Mind-blowing levels
  • Brain challenge
  • Minimalistic design
  • Relaxing music and sounds
  • No time or move limits
Features
Read full description

ston is a mind-blowing minimalistic puzzle game with unique and remarkable design. ston does not have a time or move limits, allowing you to just relax and focus. Your goal is to remove all of the cubes by passing on them. ston is now ready to cook your brain. Are you? Features: ◈ Mind-blowing levels ◈ Challenge your brain ◈ Remarkable minimalistic design ◈ Relaxing, peaceful music and sounds

Screenshots

OCO4 screens
ston4 screens

Verdict

The call

The clearest difference is review sentiment: OCO at 73% against ston's 35%. OCO also leads on rating (4.6 vs 4.3) and ratings volume (2.4K vs 128). ston's advantage is in-app purchases (none vs 8) and ads (none vs shown). On price, update cadence 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

Both are free to download. OCO sells 8 one-off in-app purchases. ston asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OCO holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: OCO has 2.4K ratings behind it against 128, so its average is the more settled of the two. Written reviews point the same way: 73% of OCO's written reviews are positive against 35% of ston's.

UpkeepUpdate frequency

OCO ships an update every 5 weeks, ston every 3 weeks. The most recent releases landed on October 2, 2026 and September 28, 2026 respectively.

Scorecard7 real differences · 3 level
OCO versus ston: the parameters behind the verdict, then further details
ParameterOCOston
PriceFreeFree
Rating4.6 (2.4K ratings) — better4.3 (128 ratings)
Positive reviews73.0% of reviews — better35.3% of reviews
Number of ratings2.4K — better128
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size113 MB72 MB
Age rating4+4+
DeveloperSPECTRUM48 LIMITEDFlat Games

Customer experience

OCO

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

ston

All ratings128 ratings
Positive81.3%
Neutral7.0%
Negative11.7%
Written reviews102 reviews
Positive35.3%
Neutral14.7%
Negative50.0%

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

ston

From 128 App Store ratings

What we love

  • 👍 Fun and enjoyable gameplay
  • 💡 Interesting concept
  • 👍 Nice design
  • 👍 Good for learning
  • 👍 Good customer care

Room to improve

  • ❌ Excessive advertisements
  • ❌ Ads interrupt gameplay
  • ❌ Ads are too long
  • ❌ Ads don't have a close button
  • ❌ Game crashes frequently

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

ston

Reported bugs

18 issues
  • Ads don't have a close button
  • Game crashes on startup
  • Game doesn't open
  • Slow movement
  • Level 74 freezes
Show 13 more
  • Level 73 has a bug
  • Level 34 is impossible
  • Game resets after update
  • Blocks are glitched on level 27
  • Settings don't work (music turns on spontaneously)
  • Level slider doesn't work
  • Game doesn't run on iPhone 6 iOS 10.2
  • Game doesn't react to touches after the first round
  • Graphics are not accurate
  • Some blocks look hollow
  • Cannot move up to adjacent blocks
  • Game makes noise even when on silent
  • Level 34 is mathematically impossible to clear

Requested features

12 requests
  • Add a timer for ads
  • Put ads on a cooldown
  • Add hints for difficult levels
  • Add a level editor
  • Add an online mode
Show 7 more
  • Add a save game feature for different devices
  • Add a 'move back one space' option
  • Add analog controls
  • Add a function to pan around the map
  • Add new levels
  • Fix the issue with the level slider not working
  • Add a feedback option to the developer

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
None

ston

No in-app purchases

Questions

Is OCO free?
OCO is free to download, with in-app purchases available.
Is ston free?
ston is free to download, with no in-app purchases.
Which has better reviews, OCO or ston?
OCO is rated higher. OCO averages 4.6 out of 5 from 2.4K ratings, while ston averages 4.3 from 128 ratings.
Do OCO or ston have ads?
OCO shows ads; ston does not.
Which is updated more often, OCO or ston?
OCO ships an update every 5 weeks, and ston every 3 weeks. Most recently, OCO was updated on October 2, 2026 and ston on September 28, 2026.

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