# Circuit Calculator vs VoltLab

The clearest difference is review sentiment: VoltLab at 97% against Circuit Calculator's 53%. VoltLab also leads on update cadence (every 6 days vs monthly) and iOS requirement (15.0 vs 18.0). Circuit Calculator's advantage is in-app purchases (none vs 7). On price, ads 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. Circuit Calculator asks for nothing beyond the download.

Circuit Calculator ships an update monthly, VoltLab every 6 days. Both last shipped on October 16, 2026.

## The numbers

| Metric | Circuit Calculator | VoltLab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (381 ratings)](https://appshunter.io/ios/app/voltlab-interactive-physics/id1461701360/reviews)** |
| Number of ratings | — | **381** |
| Positive reviews | 52.8% of reviews | **96.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 125 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Neil Woodcock](https://appshunter.io/developer/836792867) | [Denis Gladkii](https://appshunter.io/developer/1851726380) |

## What reviewers say

### Circuit Calculator

[App page](https://appshunter.io/ios/app/circuit-calculator/id836792864)

This application allows users to build, simulate, and solve linear AC and DC electrical circuits. It is designed for students, engineers, and electronics enthusiasts to aid in study, verification, and practical circuit analysis. Users can visualize current flow and analyze component values directly on schematics.

**Highlights:** Build schematics with drag-and-drop components, Solve for steady-state voltages and currents, Real-time DC current flow animation, Compute power values and Thévenin/Norton equivalents, Supports rectangular and polar notation, Save, export, and import circuits, Interactive user guide and example circuits

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Circuit Calculator free?

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

### Is VoltLab free?

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

### Do Circuit Calculator or VoltLab have ads?

Neither Circuit Calculator nor VoltLab shows ads.

### Which is updated more often, Circuit Calculator or VoltLab?

Circuit Calculator ships an update monthly, and VoltLab every 6 days. Most recently, Circuit Calculator was updated on October 16, 2026 and VoltLab on October 16, 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.*