# Binary Calc vs Circuit Simulator

The clearest difference is in-app purchases: Binary Calc at none against Circuit Simulator's 8. Binary Calc also leads on iOS requirement (13.0 vs 15.3). Circuit Simulator's advantage is ratings volume (87 vs 6). On price, rating, review sentiment and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.7 for Binary Calc against 4.7 for Circuit Simulator. That said, the two scores are not equally well evidenced: Circuit Simulator has 87 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 82% of Binary Calc's written reviews are positive against 77% of Circuit Simulator's.

Binary Calc ships an update every 2 months, Circuit Simulator every 6 weeks. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Binary Calc | Circuit Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (6 ratings)](https://appshunter.io/ios/app/binary-calc/id301630595/reviews) | [4.7 (87 ratings)](https://appshunter.io/ios/app/circuit-simulator-voltsim/id6736870364/reviews) |
| Number of ratings | 6 | **87** |
| Positive reviews | **82.4% of reviews** | 76.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 103 MB |
| Requires iOS | **13.0** | 15.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Buddy Sun](https://appshunter.io/developer/301630598) | [Sindhu Gopi](https://appshunter.io/developer/1773585161) |

## What reviewers say

### Binary Calc

[App page](https://appshunter.io/ios/app/binary-calc/id301630595)

Perform arithmetic operations and convert numbers between bases 2 and 36. Supports signed/unsigned bit negative numbers with two's complement and fractions up to 8 decimal places.

**Highlights:** Arithmetic operations (base 2-36), Number base conversion, Input in different bases, Two's complement for negative numbers, Fraction support (up to 8 decimal places)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Binary Calc free?

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

### Is Circuit Simulator free?

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

### Which has better reviews, Binary Calc or Circuit Simulator?

Binary Calc and Circuit Simulator are both rated 4.7 out of 5 on the App Store, from 6 and 87 ratings respectively.

### Do Binary Calc or Circuit Simulator have ads?

Neither Binary Calc nor Circuit Simulator shows ads.

### Which is updated more often, Binary Calc or Circuit Simulator?

Binary Calc ships an update every 2 months, and Circuit Simulator every 6 weeks. Most recently, Binary Calc was updated on October 7, 2026 and Circuit Simulator on October 12, 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.*