Comparison

Problem solver vs MARVLS

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Problem solver

Features
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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!

About

MARVLS

Features
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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

Problem solver4 screens
MARVLS4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard3 real differences ยท 3 level
Problem solver versus MARVLS: the parameters behind the verdict, then further details
ParameterProblem solverMARVLS
PriceFreeFree
Update frequencyEvery 6 monthsEvery 4 months โ€” better
AdsYesNo โ€” better
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS8.0 โ€” better18.0
Further details โ€” not scored
Size10 MB242 MB
Age rating4+9+
DeveloperFabio GiulianiMichele McColgan

In-app purchases

None

Problem solver

No in-app purchases

None

MARVLS

No in-app purchases

Questions

Is Problem solver free?
Problem solver is free to download, with no in-app purchases.
Is MARVLS free?
MARVLS is free to download, with no in-app purchases.
Do Problem solver or MARVLS have ads?
Problem solver shows ads; MARVLS does not.
Which is updated more often, Problem solver or MARVLS?
Problem solver ships an update every 6 months, and MARVLS every 4 months. Most recently, Problem solver was updated on May 16, 2026 and MARVLS on September 16, 2026.

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