# Vernier Caliper Simulator vs Circuit Simulator

The clearest difference is rating: Circuit Simulator at 4.7 against Vernier Caliper Simulator's 1.0. Circuit Simulator also leads on update cadence (every 6 weeks vs every 17 months) and ratings volume (93 vs 2). Vernier Caliper Simulator's advantage is in-app purchases (none vs 8) and iOS requirement (8.0 vs 15.3). On price, review sentiment, ads and device support there is nothing between them.

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

Circuit Simulator holds the better App Store score, 4.7 against 1.0. 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. Written reviews point the same way: 75% of Vernier Caliper Simulator's written reviews are positive against 77% of Circuit Simulator's.

Vernier Caliper Simulator ships an update every 17 months, Circuit Simulator every 6 weeks. The most recent releases landed on October 22, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Vernier Caliper Simulator | Circuit Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/vernier-caliper-simulator/id560872415/reviews) | **[4.7 (93 ratings)](https://appshunter.io/ios/app/circuit-simulator-voltsim/id6736870364/reviews)** |
| Number of ratings | 2 | **93** |
| Positive reviews | 75.0% of reviews | **76.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 12 MB | 103 MB |
| Requires iOS | **8.0** | 15.3 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jiun Wei Chia](https://appshunter.io/developer/560872418) | [Sindhu Gopi](https://appshunter.io/developer/1773585161) |

## What reviewers say

### Vernier Caliper Simulator

[App page](https://appshunter.io/ios/app/vernier-caliper-simulator/id560872415)

Practice reading a vernier caliper with this free and easy application. Simply slide your finger to grip an object and take your measurement. Enter your guess to see if you're correct and improve your skills.

**Highlights:** Virtual vernier caliper, Interactive grip simulation, Measurement reading practice, Guess and check functionality, Skill improvement tool

**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 Vernier Caliper Simulator free?

Vernier Caliper Simulator 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, Vernier Caliper Simulator or Circuit Simulator?

Circuit Simulator is rated higher. Vernier Caliper Simulator averages 1.0 out of 5 from 2 ratings, while Circuit Simulator averages 4.7 from 93 ratings.

### Do Vernier Caliper Simulator or Circuit Simulator have ads?

Neither Vernier Caliper Simulator nor Circuit Simulator shows ads.

### Which is updated more often, Vernier Caliper Simulator or Circuit Simulator?

Vernier Caliper Simulator ships an update every 17 months, and Circuit Simulator every 6 weeks. Most recently, Vernier Caliper Simulator was updated on October 22, 2026 and Circuit Simulator on October 27, 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.*