# VoltLab vs Graphrio

The clearest difference is in-app purchases: Graphrio at none against VoltLab's 7. VoltLab's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18). On price and ads there is nothing between them.

Both are free to download. VoltLab sells 7 in-app purchases, starting at $3.99 per month. Graphrio asks for nothing beyond the download.

## The numbers

| Metric | VoltLab | Graphrio |
| --- | --- | --- |
| 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 | **No** |
| Ads | No | No |
| Update frequency | Every 6 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 125 MB | 1 MB |
| Requires iOS | **15.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Denis Gladkii](https://appshunter.io/developer/1851726380) | [C & M LUMBER COMPANY, INCORPORATED.](https://appshunter.io/developer/1770824356) |

## 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 |


### Graphrio

[App page](https://appshunter.io/ios/app/graphrio/id6720763214)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VoltLab free?

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

### Is Graphrio free?

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

### Do VoltLab or Graphrio have ads?

Neither VoltLab nor Graphrio shows ads.

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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.*