# Problem solver vs Physics

The clearest difference is in-app purchases: Problem solver at none against Physics's 4. Problem solver also leads on device support (3 vs 1) and iOS requirement (8.0 vs 17.0). Physics's advantage is ads (none vs shown) and update cadence (every 2 months vs every 6 months). On price there is nothing between them.

Both are free to download. Physics sells 4 in-app purchases, starting at $1.99 per month. Problem solver asks for nothing beyond the download.

Problem solver ships an update every 6 months, Physics every 2 months. The most recent releases landed on May 16, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Problem solver | Physics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (15 ratings)](https://appshunter.io/ios/app/physics-formulas-2026/id1495587959/reviews)** |
| Number of ratings | — | **15** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 25 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Fabio Giuliani](https://appshunter.io/developer/1333671865) | [Nikita Chernykh](https://appshunter.io/developer/1448243728) |

## What reviewers say

### Problem solver

[App page](https://appshunter.io/ios/app/problem-solver-mechanics/id1435700320)

**Features:** macOS Compatibility

**In-app purchases:** none


### Physics

[App page](https://appshunter.io/ios/app/physics-formulas-2026/id1495587959)

This interactive reference app provides a comprehensive collection of physics terms, formulas, and calculators. It's designed to help users prepare for tests and Olympiads by offering clear explanations, interactive tables, and internal search functionality.

**Highlights:** 280+ physics terms and definitions, 250+ categorized physics formulas, 180+ interactive calculators, Interactive tables for knowledge assimilation, Internal search for terms and formulas, Convenient in-app navigation

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional 1 Month | $1.99 | per month |
| Professional 6 Month | $6.99 | per 6 months |
| Professional 12 Month | $14.99 | per year |
| Professional - unlimited | $24.99 | one-time |


## Frequently asked questions

### Is Problem solver free?

Problem solver is free to download, with no in-app purchases.

### Is Physics free?

Physics is free to download, with in-app purchases available.

### Do Problem solver or Physics have ads?

Problem solver shows ads; Physics does not.

### Which is updated more often, Problem solver or Physics?

Problem solver ships an update every 6 months, and Physics every 2 months. Most recently, Problem solver was updated on May 16, 2026 and Physics on September 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*