Orbi.go vs Eulerian
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Orbi.go
A minimalistic, one-tap skill-based game where players guide an arrow towards the center while avoiding orbiting obstacles. Collect lives and compete for high scores.
- One-tap gameplay
- Skill-based challenges
- Obstacle avoidance
- High score competition
- Collectible lives
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Orbi.go is a pretty nice one tap game clear designed with depth and fun for mastery. It is the perfect game when you have a spare moment! Orbi.GO FOR IT! All you have to do in this fast and addictive game is to go straight for the middle. Tap once and your blue arrow buzzes off โ thereโs only one direction and only one goal. Sounds simple? Nuh-uh. Little red obstacles orbit around your precious goal โ if one of them hits you, thatโs it. Collect more lives by hitting the little blue arrows and go straight for the center! Compete with friends and prove your superior skills with your Game Center highscore! Hint for Developers Orbi.go is developed with "GoCoEdit - Code and Text Editor for iOS"
Eulerian
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Trace every edge of the graph without retracing your steps โ sounds simple, right? Eulerian is a minimalist puzzle game inspired by one of mathematics' most elegant problems: the Eulerian path. Each level presents a hand-drawn graph on a notebook page. Your goal is to traverse every edge exactly once. No repeats. No leftovers. START SIMPLE, GET HOOKED Begin with easy graphs and work your way through 2000+ handcrafted levels that grow increasingly complex. What starts as a relaxing pastime quickly becomes an addictive challenge. ENDLESS MODE Finished the main levels? Jump into Endless mode with procedurally generated puzzles that never run out. Four difficulty modes to test your limits. BEAUTIFUL NOTEBOOK AESTHETIC Every puzzle feels like it was sketched by hand on a real notebook page. Unlock premium themes to customize your experience. FEATURES - 2000+ handcrafted puzzle levels across 10 packs - Endless mode with 4 difficulty settings - Hints when you're stuck - Star rating system based on speed and efficiency - Calming ambient soundtrack - Multiple notebook themes to unlock - No internet required โ play anywhere Based on a problem first posed by mathematician Leonhard Euler in 1736, Eulerian brings centuries-old graph theory to your fingertips in a beautiful, approachable package. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is iOS requirement: Orbi.go at 9.0 against Eulerian's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Orbi.go sells 2 one-off in-app purchases and Eulerian sells 9 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
Orbi.go ships an update monthly, Eulerian every 3 weeks. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.
| Parameter | Orbi.go | Eulerian |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 80.0% of reviews | โ |
| Update frequency | Monthly | Every 3 weeks โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | โ |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 9.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 20 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Christoph Gogolin | Madhav Dogra |
In-app purchases
Orbi.go
- Request support$0.99
- Remove Ads$1.99
Eulerian
- Endless Monthly$3.991 Month
- 5 Hints$0.99
- 15 Hints$1.99
- All Premium Themes$3.99
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- Double Coins$4.99
- Remove Ads$4.99
- 50 Hints$4.99
- 150 Hints$9.99
- 500 Hints$19.99









