# Circuit Simulator vs Tenio

The clearest difference is in-app purchases: Tenio at none against Circuit Simulator's 8. Tenio also leads on rating (5.0 vs 4.7). Circuit Simulator's advantage is ratings volume (93 vs 2) and update cadence (every 2 months vs every 4 months). 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. Tenio asks for nothing beyond the download.

Tenio holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Circuit Simulator has 93 ratings behind it against 2, so its average is the more settled of the two.

Circuit Simulator ships an update every 2 months, Tenio every 4 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Circuit Simulator | Tenio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (93 ratings)](https://appshunter.io/ios/app/circuit-simulator-voltsim/id6736870364/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tenio-electronics-toolkit-lab/id6757969551/reviews)** |
| Number of ratings | **93** | 2 |
| Positive reviews | 76.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 105 MB | 7 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) | [Samuel Rodas Aroche](https://appshunter.io/developer/1706040833) |

## 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 signals with oscilloscopes and multimeters. Offers a user-friendly experience for circuit design and digital electronic analysis.

**Highlights:** Real-time circuit simulation, Voltage and current analysis, Multichannel oscilloscope, Digital circuit simulation, User-friendly interface, Circuit design tools

**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 |


### Tenio

[App page](https://appshunter.io/ios/app/tenio-electronics-toolkit-lab/id6757969551)

This app provides a suite of calculators and converters for electronics enthusiasts, students, and makers. It helps users quickly solve circuit tasks, decode component markings, and calculate values for resistors and capacitors, speeding up project development.

**Highlights:** Resistor color code calculator, SMD resistor code converter, LED resistor calculator, Series & parallel resistor calculator, SMD capacitor code calculator, Series & parallel capacitor calculator

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Circuit Simulator free?

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

### Is Tenio free?

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

### Which has better reviews, Circuit Simulator or Tenio?

Tenio is rated higher. Circuit Simulator averages 4.7 out of 5 from 93 ratings, while Tenio averages 5.0 from 2 ratings.

### Do Circuit Simulator or Tenio have ads?

Neither Circuit Simulator nor Tenio shows ads.

### Which is updated more often, Circuit Simulator or Tenio?

Circuit Simulator ships an update every 2 months, and Tenio every 4 months. Most recently, Circuit Simulator was updated on October 30, 2026 and Tenio on October 24, 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.*