# Blood Pressure Simulator vs Merge Explorer

The clearest difference is review sentiment: Merge Explorer at 46% against Blood Pressure Simulator's 0%. Merge Explorer also leads on rating (4.1 vs 3.0) and update cadence (monthly vs every 17 months). Blood Pressure Simulator's advantage is in-app purchases (none vs 4) and iOS requirement (9.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Merge Explorer sells 4 in-app purchases, starting at $9.99 per month. Blood Pressure Simulator asks for nothing beyond the download.

Merge Explorer holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: Merge Explorer has 279 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Blood Pressure Simulator's written reviews are positive against 46% of Merge Explorer's.

Blood Pressure Simulator ships an update every 17 months, Merge Explorer monthly. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Blood Pressure Simulator | Merge Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/blood-pressure-simulator/id842379086/reviews) | **[4.1 (279 ratings)](https://appshunter.io/ios/app/merge-explorer/id1453098606/reviews)** |
| Number of ratings | 2 | **279** |
| Positive reviews | 0.0% of reviews | **46.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 1.3 GB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Symbio Corporation](https://appshunter.io/developer/1296033620) | [Merge Apps](https://appshunter.io/developer/1253049593) |

## What reviewers say

### Blood Pressure Simulator

[App page](https://appshunter.io/ios/app/blood-pressure-simulator/id842379086)

This educational tool simulates blood pressure measurement for training purposes. It features adjustable systolic and diastolic pressures, sound amplitude, and heart rate settings. The device includes a sphygmomanometer, B/P cuff, and programming capabilities.

**Highlights:** Adjustable systolic and diastolic pressures, Variable sound amplitude, Heart rate settings, Sphygmomanometer and B/P cuff included, Programming capabilities

**Features:** macOS Compatibility

**In-app purchases:** none


### Merge Explorer

[App page](https://appshunter.io/ios/app/merge-explorer/id1453098606)

Explore over 100 interactive science simulations using a smartphone and a Merge Cube. Investigate volcanoes, sharks, the solar system, and more with hands-on activities and quizzes. Ideal for K-8 students learning science at school or home.

**Highlights:** Over 100 science simulations, Interactive Merge Cube experiences, Hands-on learning activities, Built-in quizzes, NGSS-aligned K-8 curriculum, Physical, Life, and Earth/Space Science topics

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Merge EDU Individual | $9.99 | per month |
| Explorer Premium Monthly | $9.99 | per month |
| Merge EDU Individual | $99.99 | per year |
| Explorer Premium Annual | $99.99 | per year |

**What reviewers like**

- 👍 Easy for young students
- 💡 Flexible for lesson needs
- 🔬 Used for research and experiments
- 💡 Introduces new content exploratorily
- 🤩 Engaging and versatile for learning

**What reviewers complain about**

- 💰 Expensive purchase
- 💰 Forced subscription for software
- 💰 Cannot view software before paying
- 💰 Money trap
- 💰 Only for rich people

**Reported bugs**

- App crashes on iPad
- App crashes when pressing play
- Camera not working in app
- Black screen when using cube or camera
- VR function broken

**Requested features**

- Make the app free to play
- Add more fun things, not just learning
- Bring back the fun apps (time bomb, block courses)
- Allow users to create their own games for the merge cube
- Add a way to reset quizzes for class sets of devices


## Frequently asked questions

### Is Blood Pressure Simulator free?

Blood Pressure Simulator is free to download, with no in-app purchases.

### Is Merge Explorer free?

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

### Which has better reviews, Blood Pressure Simulator or Merge Explorer?

Merge Explorer is rated higher. Blood Pressure Simulator averages 3.0 out of 5 from 2 ratings, while Merge Explorer averages 4.1 from 279 ratings.

### Do Blood Pressure Simulator or Merge Explorer have ads?

Neither Blood Pressure Simulator nor Merge Explorer shows ads.

### Which is updated more often, Blood Pressure Simulator or Merge Explorer?

Blood Pressure Simulator ships an update every 17 months, and Merge Explorer monthly. Most recently, Blood Pressure Simulator was updated on November 1, 2026 and Merge Explorer on November 2, 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.*