GetPrincipia vs Physics Playground App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GetPrincipia
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Unlocking mathematical concepts with visuals, practice, progress tracking, study guides, and linking disciplines and topics across the field. Terms of Use: https://getprincipia.com/terms Privacy Policy: https://getprincipia.com/privacy
Physics Playground App
Explore the universe of physics and math through interactive simulations and real-time equation adjustments. Learn concepts from basic counting to advanced theories with hands-on playgrounds and mini-games that earn you badges. Designed for all levels of understanding, from children to PhDs.
- Interactive physics and math playgrounds
- Real-time equation adjustments
- Adjustable difficulty slider (Child to PhD)
- Mini-games with badge rewards
- Concept map for interconnected ideas
- Offline-first functionality
- No ads or accounts required
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Physics Playground turns science into games you play with your hands. Fire a cannon, slide pucks across the ice, fold a protein, crack a cipher, bend starlight around a black hole and forge a star. Every game runs on real physics, chemistry, biology, math or computer science, so you learn by doing, not by reading. 63 GAMES, FIVE SUBJECTS From projectiles, orbits and lasers to entanglement and the Big Bang; atoms, reactions and batteries; cells, genes and the immune system; fractions, fractals and calculus; logic gates, sorting, networks and machine learning. Each game has its own controls and its own goal. PLAY AT YOUR LEVEL Pick Curious Kid, Teen, Undergrad or PhD. Games start on Easy, Normal or Hard to match, and PhD turns off the hints for numbers only play. Free Play lets you experiment with no clock. EARN EVERY STAR Clear stages, earn up to three stars, beat your best score and collect badges. Light up your constellation and unlock the Universe Tuner when you master them all. BUILT FOR IPHONE DUO Fold it into a tabletop and the hinge aims the cannon. Open it like a book and the game spreads across both halves, with controls on their own side. Close it and keep playing on the outer screen. NEW GRAPHICS, SMOOTH AT 120 HZ Glowing particles, warped spacetime, lensed starlight and live fractals, with haptics tuned to every bounce and blast. GO DEEPER Every game links trusted sources: textbooks, papers, lectures and courses. Works on iPhone, iPad, Mac and Apple Vision Pro. Ask Siri to open a game. No account, no ads, no tracking.
Screenshots
Verdict
The clearest difference is in-app purchases: Physics Playground App at none against GetPrincipia's 2. Physics Playground App also leads on update cadence (every 3 weeks vs every 2 months). GetPrincipia's advantage is iOS requirement (15.1 vs 17.0). On price, 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
Both are free to download. GetPrincipia sells 2 in-app purchases, starting at $6.99 per month. Physics Playground App asks for nothing beyond the download.
GetPrincipia ships an update every 2 months, Physics Playground App every 3 weeks. The most recent releases landed on October 31, 2026 and November 13, 2026 respectively.
| Parameter | GetPrincipia | Physics Playground App |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 38 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Axiom 38 LLC | AJA Digital LLC |
In-app purchases
GetPrincipia
- Monthly7 Days trial$6.991 Month
- Annual7 Days trial$44.991 Year
Physics Playground App
No in-app purchases
Questions
Is GetPrincipia free?
Is Physics Playground App free?
Do GetPrincipia or Physics Playground App have ads?
Which is updated more often, GetPrincipia or Physics Playground App?
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