# Circuit Simulator vs Sumup Learning Hub

The clearest difference is in-app purchases: Sumup Learning Hub at none against Circuit Simulator's 8. Sumup Learning Hub also leads on update cadence (every 2 weeks vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Circuit Simulator sells 8 in-app purchases, starting at $0.99 per month. Sumup Learning Hub asks for nothing beyond the download.

Circuit Simulator ships an update every 6 weeks, Sumup Learning Hub every 2 weeks. The most recent releases landed on October 27, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Circuit Simulator | Sumup Learning Hub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (93 ratings)](https://appshunter.io/ios/app/circuit-simulator-voltsim/id6736870364/reviews)** | — |
| Number of ratings | **93** | — |
| Positive reviews | 76.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 103 MB | 41 MB |
| Requires iOS | 15.3 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sindhu Gopi](https://appshunter.io/developer/1773585161) | [Stratos SpA](https://appshunter.io/developer/796340880) |

## What reviewers say

### Circuit Simulator

[App page](https://appshunter.io/ios/app/circuit-simulator-voltsim/id6736870364)

Design and simulate electronic and digital circuits in real-time. Visualize voltage and current flow, and analyze circuit behavior with tools like oscilloscopes and multimeters. Offers a user-friendly experience for circuit design and digital electronic analysis.

**Highlights:** Real-time electronic circuit simulation, Digital circuit simulation, Voltage and current analysis, Multichannel oscilloscope, Multimeter tools, Circuit design and tuning

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extensions Subscription | $0.99 | per month |
| Sensors Extension | $0.99 | one-time |
| Custom Chips Extension | $1.99 | one-time |
| Instruments extension | $2.99 | one-time |
| Analog Extension | $3.99 | one-time |
| Misc Extension | $3.99 | one-time |
| Digital Extension | $3.99 | one-time |
| Extension Pack | $12.99 | one-time |


### Sumup Learning Hub

[App page](https://appshunter.io/ios/app/sumup-learning-hub/id6745172631)

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

**In-app purchases:** none


## Frequently asked questions

### Is Circuit Simulator free?

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

### Is Sumup Learning Hub free?

Sumup Learning Hub is free to download, with no in-app purchases.

### Do Circuit Simulator or Sumup Learning Hub have ads?

Neither Circuit Simulator nor Sumup Learning Hub shows ads.

### Which is updated more often, Circuit Simulator or Sumup Learning Hub?

Circuit Simulator ships an update every 6 weeks, and Sumup Learning Hub every 2 weeks. Most recently, Circuit Simulator was updated on October 27, 2026 and Sumup Learning Hub 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.*