# VoltLab vs Physics. Trainer App

The clearest difference is ads: VoltLab at none against Physics. Trainer App's shown. VoltLab also leads on ratings volume (363 vs 3) and device support (3 vs 1). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. VoltLab sells 7 in-app purchases, starting at $3.99 per month and Physics. Trainer App sells 2 in-app purchases, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for VoltLab against 5.0 for Physics. Trainer App. That said, the two scores are not equally well evidenced: VoltLab has 363 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 97% of VoltLab's written reviews are positive against 100% of Physics. Trainer App's.

VoltLab ships an update every 4 days, Physics. Trainer App weekly. The most recent releases landed on September 25, 2026 and July 17, 2026 respectively.

## The numbers

| Metric | VoltLab | Physics. Trainer App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (363 ratings)](https://appshunter.io/ios/app/voltlab-interactive-physics/id1461701360/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/physics-trainer-app/id6753603866/reviews) |
| Number of ratings | **363** | 3 |
| Positive reviews | 96.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 122 MB | 31 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Denis Gladkii](https://appshunter.io/developer/1851726380) | [Blatt, Inc](https://appshunter.io/developer/1779835943) |

## What reviewers say

### VoltLab

[App page](https://appshunter.io/ios/app/voltlab-interactive-physics/id1461701360)

This app simplifies learning electricity through interactive lessons and visual experiments. It offers offline access, quizzes with detailed solutions, and a reference guide for formulas. Ideal for students and educators seeking to understand electrical concepts.

**Highlights:** Interactive circuit building, Visual experiment results, Self-paced learning, Quizzes with step-by-step solutions, Offline access to lessons, Reference guide for formulas

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VoltLab Pro One Month | $3.99 | per month |
| VoltLab Pro One Year | $12.99 | per year |
| VoltLab Pro One Year | $6.99 | one-time |
| VoltLab Donat | $10.99 | one-time |
| VoltLab Pro | $39.99 | one-time |
| VoltLab Donate | $49.99 | one-time |
| Awesome VoltLab Donat | $99.99 | one-time |


### 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 (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium access | $2.99 | per year |
| Removing ads | $2.99 | one-time |


## Frequently asked questions

### Is VoltLab free?

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

### Is Physics. Trainer App free?

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

### Which has better reviews, VoltLab or Physics. Trainer App?

VoltLab and Physics. Trainer App are both rated 5.0 out of 5 on the App Store, from 363 and 3 ratings respectively.

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

Physics. Trainer App shows ads; VoltLab does not.

### Which is updated more often, VoltLab or Physics. Trainer App?

VoltLab ships an update every 4 days, and Physics. Trainer App weekly. Most recently, VoltLab was updated on September 25, 2026 and Physics. Trainer App on July 17, 2026.

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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.*