Project Chiron vs Rubicon
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Project Chiron
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Stuck on a math problem you refuse to give up on? Chiron writes the smallest hint on your page, just enough to keep you thinking, without spoiling the math. Write your working by hand. Chiron reads every line as you go and steps in only when it helps: a nudge when you're stuck, a question when you're close, a quiet check when you're not sure. It teaches. It never lectures. KEEP THINKING โข Hints sized to the moment: the smallest push that keeps you moving โข Get pointed at the slip, not handed the answer โข Ask out loud, "where do I even start?", and talk it through DOES THE MATH PROPERLY โข Every check is grounded in a real symbolic engine, so feedback is exact, never a chatbot's guess โข Catches the sign you flipped, the solution you gained, the step that doesn't follow โข Built for real work: algebra, trigonometry, calculus, ODEs, logs and more BRING YOUR OWN โข Snap any problem with the camera and start working โข Upload your notes and Chiron works from your course, not a generic one Best with an Apple Pencil. Chiron. Keep thinking.
Rubicon
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Master math through exciting mini-games, earn XP, and unlock fun in-game rewards with Rubicon โ a fast, fun, and gamified learning experience! Solve brain-teasing math puzzles, collect XP (Learning Points), and enjoy new challenges every week. Unlock gems and customize your in-game avatar as you learn. Whether you're practicing your skills or exploring new math adventures, Rubicon makes learning exciting and rewarding โ all in a safe, child-friendly environment. Features: - Quick math games that help develop real skills - Customize your avatar with unlockable outfits - Earn XP (Learning Points) to see your personal growth - Climb weekly leaderboards (with no personal information shared) - Collect gems to unlock visual upgrades Note: Rubicon is not affiliated with Roblox or any other platform. All virtual rewards are earned through gameplay and can only be used within the app to unlock educational or entertainment features. No real-money rewards or exchanges are offered.
Screenshots
Verdict
The clearest difference is in-app purchases: Project Chiron at none against Rubicon's 7. Project Chiron also leads on ads (none vs shown). Rubicon's advantage is update cadence (every 2 days vs every 5 days) and iOS requirement (13.0 vs 16.0). On price and device support 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. Rubicon sells 7 one-off in-app purchases. Project Chiron asks for nothing beyond the download.
Project Chiron ships an update every 5 days, Rubicon every 2 days. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.
| Parameter | Project Chiron | Rubicon |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days | Every 2 days โ better |
| Ads | No โ better | Yes |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 16.0 | 13.0 โ better |
| Further details โ not scored | ||
| Size | 144 MB | 698 MB |
| Age rating | 4+ | 4+ |
| Developer | James Booth | OneTwoPlay B.V. |
In-app purchases
Project Chiron
No in-app purchases
Rubicon
- 500 Gems$4.99
- Battle Pass Premium$4.99
- 1000 Gems$9.99
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- 1500 Gems$14.99
- 2000 Gems$19.99
- 2500 Gems$24.99
- 3000 Gems$29.99









