# Physics. Trainer App vs STEMReader

The clearest difference is ads: STEMReader at none against Physics. Trainer App's shown. STEMReader also leads on device support (3 vs 1). Physics. Trainer App's advantage is iOS requirement (18.6 vs 26.4). On price and in-app purchases there is nothing between them.

Both are free to download. Physics. Trainer App sells 1 one-off in-app purchase and STEMReader sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Physics. Trainer App | STEMReader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/physics-trainer-app/id6753603866/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 32 MB | 12 MB |
| Requires iOS | **18.6** | 26.4 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 9+ | 4+ |
| Developer | [Blatt, Inc](https://appshunter.io/developer/1779835943) | [SAMUEL QUINTEIRO PEREZ](https://appshunter.io/developer/1793573517) |

## What reviewers say

### Physics. Trainer App

[App page](https://appshunter.io/ios/app/physics-trainer-app/id6753603866)

Master physics formulas with this app designed for high school students. Practice with spaced repetition and track your progress to build long-term memory and exam confidence.

**Highlights:** Comprehensive formula bank, Spaced repetition trainer, Adaptive learning, Progress tracking, Formula building exercises

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Removing ads | $2.99 | one-time |


### STEMReader

[App page](https://appshunter.io/ios/app/stemreader/id6778995923)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Monthly | $1.99 | per month |
| Plus Annual | $7.99 | per year |
| This Document | $0.99 | one-time |
| Three Documents | $1.99 | one-time |


## Frequently asked questions

### Is Physics. Trainer App free?

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

### Is STEMReader free?

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

### Do Physics. Trainer App or STEMReader have ads?

Physics. Trainer App shows ads; STEMReader does not.

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