Comparison

321! vs Ouros

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

Head to head
About

321!

A physics-based puzzle game that challenges your math and physics knowledge to find perfect angles for seemingly impossible passes. Compete against your own scores and share your achievements.

Highlights
  • Physics-based gameplay
  • Mathematical puzzles
  • Score-based challenges
  • Shareable results
  • Inspired by Flash game
Features
Read full description

321 is an epic game, with realistic scenarios, strategies dazzling, glorious battles and lots of action. Except for the part of realistic scenarios, the rest is all true! You are facing a fascinating mathematical game, a challenge that will require your knowledge in physics to find perfect angles and seemingly impossible passes. Play once, twice, three times. Play to beat your own record. Math is precise and will make you loose your mind. 321 is inspired by the awesome Flash game from Wouter Visser for desktop, but now in mobile version. Don’t be shy and share your results in Facebook and call your friends to join this exciting adventure. Stay connected with us: Online: http://www.weplay321.com Instagram: http://instagram.com/weplay321 ••••••••••••••••••••••••••••••••••••••••••• ••••••••••••••••••3•2•1•••••••••••••••••••• ••••••••••••••••••••••••••••••••••••••••••• 321 é um jogo épico, com cenários realistas, estratégias mirabolantes, batalhas gloriosas e muita ação. Tirando a parte dos cenários realistas, o resto é tudo verdade! Você está diante de um jogo matemático fascinante, um desafio que vai exigir seus conhecimentos em física para descobrir ângulos perfeitos e passagens aparentemente impossíveis. Jogue uma, duas, três vezes. Jogue até bater o seu próprio recorde. A matemática é precisa e vai fazer você arrancar seus cabelos. 321 é inspirado no maravilhoso Flash game de Wouter Visser para desktop, mas agora em versão mobile. E não se acanhe, compartilhe seus resultados no Facebook, chame seus amigos e participem desta empolgante aventura. Acompanhe a gente: Online: http://www.weplay321.com Facebook: https://www.facebook.com/weplay321 Instagram: http://instagram.com/weplay321

About

Ouros

A relaxing puzzle game where you manipulate curves to match targets in a serene environment. Discover the mathematical beauty of shapes with over 120 handcrafted levels. Enjoy a fluid, stress-free experience with intuitive controls and dynamic visuals.

Highlights
  • Original spline-based control scheme
  • Lush visuals and dynamic soundscapes
  • Flexible level progression and hint system
  • Intuitive multi-touch controls
  • Fluid gameplay without timers or scores
Features
Currently charting
Read full description

Ouros is a calming puzzle game about forming beautiful curves in a serene space. Find your flow as you nudge, bend, and stretch curves into pleasing shapes. The goal is simple. Align the curve with the targets, then watch the orb gracefully glide through them. With over 120 handcrafted puzzles to solve, Ouros invites you to discover the inherent mathematical beauty of its world. Features: - An original spline-based control scheme - Lush visuals and soothing soundscapes that dynamically respond to the forms you create - A flexible level progression and hint system that let you play at your own pace - Intuitive multi-touch controls made with touchscreens in mind - A fluid gameplay experience free of timers, scores, or dexterity requirements

Screenshots

321!4 screens
Ouros4 screens

Verdict

The call

The clearest difference is price: 321! at Free against Ouros's $2.99. 321! also leads on update cadence (every 2 weeks vs every 5 months) and iOS requirement (9.0 vs 13.0). Ouros's advantage is rating (4.9 vs 4.2) and in-app purchases (none vs 2). On ratings volume, 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

321! is free to download; Ouros costs $2.99 up front. 321! sells 2 one-off in-app purchases. Ouros asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ouros holds the better App Store score, 4.9 against 4.2. Both are backed by a comparable volume of ratings — 32 and 82 respectively. Written reviews point the same way: 66% of 321!'s written reviews are positive against 90% of Ouros's.

UpkeepUpdate frequency

321! ships an update every 2 weeks, Ouros every 5 months. Both last shipped on October 20, 2026.

Scorecard8 real differences · 3 level
321! versus Ouros: the parameters behind the verdict, then further details
Parameter321!Ouros
PriceFree — better$2.99
Rating4.2 (32 ratings)4.9 (82 ratings) — better
Positive reviews66.0% of reviews90.0% of reviews — better
Number of ratings3282 — better
Update frequencyEvery 2 weeks — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#199 — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better13.0
Further details — not scored
Size16 MB138 MB
Age rating4+4+
DeveloperAntonio JrMichael Kamm

Customer experience

321!

All ratings32 ratings
Positive78.1%
Neutral6.3%
Negative15.6%
Written reviews53 reviews
Positive66.0%
Neutral7.5%
Negative26.4%

Ouros

All ratings82 ratings
Positive96.3%
Neutral2.4%
Negative1.2%
Written reviews50 reviews
Positive90.0%
Neutral6.0%
Negative4.0%

Bugs and requests

321!

Not enough reviews yet to summarise bugs or requests.

Ouros

Reported bugs

3 issues
  • Sound/SFX not working on iPhone
  • Numbers are sideways in portrait mode
  • Issue getting into corners with no running room on iPad

Requested features

7 requests
  • Add more levels
  • Add Watch support
  • Allow playing own music in the background
  • Option to change orientation to portrait mode
  • iCloud sync for progress across devices
Show 2 more
  • Ability to turn off movement while working on puzzles
  • Make help icon placement more accessible on iPad

In-app purchases

2 purchases

321!

One-time2
  • Extra shot$0.99
  • Upgrade to Pro$4.99
None

Ouros

No in-app purchases

Questions

Is 321! free?
321! is free to download, with in-app purchases available.
Is Ouros free?
Ouros costs $2.99, with no in-app purchases.
Which has better reviews, 321! or Ouros?
Ouros is rated higher. 321! averages 4.2 out of 5 from 32 ratings, while Ouros averages 4.9 from 82 ratings.
Do 321! or Ouros have ads?
Neither 321! nor Ouros shows ads.
Which is updated more often, 321! or Ouros?
321! ships an update every 2 weeks, and Ouros every 5 months. Most recently, 321! was updated on October 20, 2026 and Ouros on October 20, 2026.

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