Problem solver vs WhyNot Online Learning
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Problem solver
Read full descriptionHide full description
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!
WhyNot Online Learning
Read full descriptionHide full description
WhyNot app is designed to provide users with an engaging and effective way to learn a new language.
Screenshots
Verdict
The clearest difference is ads: WhyNot Online Learning at none against Problem solver's shown. WhyNot Online Learning also leads on update cadence (every 3 days vs every 6 months). Problem solver's advantage is iOS requirement (8.0 vs 11.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Problem solver ships an update every 6 months, WhyNot Online Learning every 3 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Problem solver | WhyNot Online Learning |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 10 MB | 95 MB |
| Age rating | 4+ | 17+ |
| Developer | Fabio Giuliani | AMIR ELJURDI |
In-app purchases
Problem solver
No in-app purchases
WhyNot Online Learning
No in-app purchases
Questions
Is Problem solver free?
Is WhyNot Online Learning free?
Do Problem solver or WhyNot Online Learning have ads?
Which is updated more often, Problem solver or WhyNot Online Learning?
Other comparisons
