# Clamshell vs Scientific math Calculator

The clearest difference is price: Clamshell at Free against Scientific math Calculator's $0.99. Clamshell also leads on update cadence (every 6 weeks vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Clamshell is free to download; Scientific math Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Clamshell ships an update every 6 weeks, Scientific math Calculator every 3 months. The most recent releases landed on October 8, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Clamshell | Scientific math Calculator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/clamshell/id6477896729/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 8 MB | 5 MB |
| Requires iOS | 18.4 | 18.4 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Alexander Kovrazhkin](https://appshunter.io/developer/1544108014) | [贺 周](https://appshunter.io/developer/1815397078) |

## What reviewers say

### Clamshell

[App page](https://appshunter.io/ios/app/clamshell/id6477896729)

Monitor the status of all your Macs from your iPhone or iPad. This app allows you to track lid and system states remotely, ensuring you're always informed about your devices. It utilizes iCloud for secure data synchronization without third-party servers.

**Highlights:** Monitor Mac lid states, Track system statuses (Awake, Sleep, etc.), Remote monitoring from iPhone/iPad, iCloud synchronization, Supports Mac desktops

**In-app purchases:** none


### Scientific math Calculator

[App page](https://appshunter.io/ios/app/scientific-math-calculator/id6759213986)

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

**In-app purchases:** none


## Frequently asked questions

### Is Clamshell free?

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

### Is Scientific math Calculator free?

Scientific math Calculator costs $0.99, with no in-app purchases.

### Do Clamshell or Scientific math Calculator have ads?

Neither Clamshell nor Scientific math Calculator shows ads.

### Which is updated more often, Clamshell or Scientific math Calculator?

Clamshell ships an update every 6 weeks, and Scientific math Calculator every 3 months. Most recently, Clamshell was updated on October 8, 2026 and Scientific math Calculator on September 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.*