Problem solver vs MARVLS
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Problem solver
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If you have difficulties in solving physics problems regarding mechanics, the conservation of potential and kinetic energy, and collisions, this is the app for you! How it works: Just enter few data and this app solves the problem for you. But not only! "Physics problem solver: Mechanics and collisions", after solving the problem also says how you get to the solution! Features: Solves problems and also points out the process of these topics: -Mechanics and the principle of conservation of energy (kinetic and potential energy) -Elastic collisions -Perfectly inelastic collisions It is possible to enter even complex data, with functions such as cos(x), tan(x) in the fields and the Solver will calculate everything for you! You can also save the problems already solved, so you can consult them when you want with a click! Download now "Physics problem solver: Mechanics and collisions" for free!
MARVLS
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Augmented Reality Models of topics in the first semester of a physics course including vectors, centroids, forces, impulse, momentum, projectiles, circular motion, torque, right-hand rule, and simple harmonic motion. You'll need a Merge Cube ( link included to download from the internet). Click on different button to navigate to different topics. Click on View in AR to view the model. Hold the Merge cube so that your camera can see it well. Move the cube around until you see the model. Click on the buttons to interact with the model. Click the back button to get back to the info screens or to the main screen.
Screenshots
Verdict
The clearest difference is ads: MARVLS at none against Problem solver's shown. Problem solver's advantage is device support (3 vs 1) and iOS requirement (8.0 vs 18.0). On price, update cadence 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. Neither carries in-app purchases, so what you see is what you pay.
Problem solver ships an update every 6 months, MARVLS every 4 months. The most recent releases landed on May 16, 2026 and September 16, 2026 respectively.
| Parameter | Problem solver | MARVLS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 4 months โ better |
| Ads | Yes | No โ better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 8.0 โ better | 18.0 |
| Further details โ not scored | ||
| Size | 10 MB | 242 MB |
| Age rating | 4+ | 9+ |
| Developer | Fabio Giuliani | Michele McColgan |
In-app purchases
Problem solver
No in-app purchases
MARVLS
No in-app purchases
Questions
Is Problem solver free?
Is MARVLS free?
Do Problem solver or MARVLS have ads?
Which is updated more often, Problem solver or MARVLS?
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