# Vernier Caliper Simulator 2 vs Simurelay

The clearest difference is rating: Simurelay at 3.9 against Vernier Caliper Simulator 2's 2.5. Simurelay also leads on ratings volume (17 vs 2). Vernier Caliper Simulator 2's advantage is in-app purchases (none vs 3) and iOS requirement (10.2 vs 15.6). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Simurelay sells 3 one-off in-app purchases. Vernier Caliper Simulator 2 asks for nothing beyond the download.

Simurelay holds the better App Store score, 3.9 against 2.5. That said, the two scores are not equally well evidenced: Simurelay has 17 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 50% of Vernier Caliper Simulator 2's written reviews are positive against 52% of Simurelay's.

Vernier Caliper Simulator 2 ships an update every 10 months, Simurelay every 7 months. The most recent releases landed on October 4, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Vernier Caliper Simulator 2 | Simurelay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/vernier-caliper-simulator-2/id1202620072/reviews) | **[3.9 (17 ratings)](https://appshunter.io/ios/app/simurelay/id1580180864/reviews)** |
| Number of ratings | 2 | **17** |
| Positive reviews | 50.0% of reviews | **52.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 7 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 18 MB | 19 MB |
| Requires iOS | **10.2** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Jiun Wei Chia](https://appshunter.io/developer/560872418) | [Abdessamed Benkabouya](https://appshunter.io/developer/1580180866) |

## What reviewers say

### Vernier Caliper Simulator 2

[App page](https://appshunter.io/ios/app/vernier-caliper-simulator-2/id1202620072)

Practice reading a vernier caliper with this free and easy application. Slide your finger to grip objects, enter your measurement guess, and check your accuracy. This version includes leaderboards and a higher precision scale option.

**Highlights:** Vernier caliper simulation, Interactive object gripping, Answer checking, Leaderboards, 0.005 cm precision scale option

**Features:** macOS Compatibility

**In-app purchases:** none


### Simurelay

[App page](https://appshunter.io/ios/app/simurelay/id1580180864)

Design and simulate electromechanical systems with a wide range of basic electrical components. Create detailed electrical diagrams using relays, switches, buttons, contactors, and timers.

**Highlights:** Design electromechanical systems, Simulate electrical diagrams, Basic electrical components library, Relays, switches, buttons, contactors, Timers and motors simulation

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Timers Coils and Contacts | $7.99 | one-time |
| Advanced Tools | $7.99 | one-time |
| Full Version | $14.99 | one-time |


## Frequently asked questions

### Is Vernier Caliper Simulator 2 free?

Vernier Caliper Simulator 2 is free to download, with no in-app purchases.

### Is Simurelay free?

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

### Which has better reviews, Vernier Caliper Simulator 2 or Simurelay?

Simurelay is rated higher. Vernier Caliper Simulator 2 averages 2.5 out of 5 from 2 ratings, while Simurelay averages 3.9 from 17 ratings.

### Do Vernier Caliper Simulator 2 or Simurelay have ads?

Neither Vernier Caliper Simulator 2 nor Simurelay shows ads.

### Which is updated more often, Vernier Caliper Simulator 2 or Simurelay?

Vernier Caliper Simulator 2 ships an update every 10 months, and Simurelay every 7 months. Most recently, Vernier Caliper Simulator 2 was updated on October 4, 2026 and Simurelay on October 19, 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.*