# VoltLab vs Physics Questions

The clearest difference is ads: VoltLab at none against Physics Questions's shown. Physics Questions's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. VoltLab sells 7 in-app purchases, starting at $3.99 per month and Physics Questions sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

VoltLab ships an update every 6 days, Physics Questions every 4 days. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | VoltLab | Physics Questions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (381 ratings)](https://appshunter.io/ios/app/voltlab-interactive-physics/id1461701360/reviews)** | — |
| Number of ratings | **381** | — |
| Positive reviews | 96.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 days | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 125 MB | 20 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Denis Gladkii](https://appshunter.io/developer/1851726380) | [Michael Todd](https://appshunter.io/developer/1211079532) |

## 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 Questions

[App page](https://appshunter.io/ios/app/physics-questions/id1616961005)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Electricity Questions | $1.99 | one-time |
| Electronics Questions | $1.99 | one-time |
| Electromagnetism Questions | $1.99 | one-time |
| Force & Energy Questions | $1.99 | one-time |
| Motion Questions | $1.99 | one-time |
| Optics Questions | $1.99 | one-time |
| Radioactivity & Thermodynamics | $1.99 | one-time |
| Special Relativity Questions | $1.99 | one-time |
| Waves & Particles Questions | $1.99 | one-time |


## Frequently asked questions

### Is VoltLab free?

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

### Is Physics Questions free?

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

### Do VoltLab or Physics Questions have ads?

Physics Questions shows ads; VoltLab does not.

### Which is updated more often, VoltLab or Physics Questions?

VoltLab ships an update every 6 days, and Physics Questions every 4 days. Most recently, VoltLab was updated on October 12, 2026 and Physics Questions on October 6, 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.*