# Clamshell vs SignalHound

The clearest difference is update cadence: SignalHound at every 9 days against Clamshell's every 6 weeks. Clamshell's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Clamshell ships an update every 6 weeks, SignalHound every 9 days. Both last shipped on October 8, 2026.

## The numbers

| Metric | Clamshell | SignalHound |
| --- | --- | --- |
| Price | Free | Free |
| 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 9 days** |
| Monetization | Free | — |
| Size | 8 MB | 2 MB |
| Requires iOS | 18.4 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Kovrazhkin](https://appshunter.io/developer/1544108014) | [Rofoz B.V.](https://appshunter.io/developer/1870073221) |

## 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


### SignalHound

[App page](https://appshunter.io/ios/app/signalhound/id6757980535)

**In-app purchases:** none


## Frequently asked questions

### Is Clamshell free?

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

### Is SignalHound free?

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

### Do Clamshell or SignalHound have ads?

Neither Clamshell nor SignalHound shows ads.

### Which is updated more often, Clamshell or SignalHound?

Clamshell ships an update every 6 weeks, and SignalHound every 9 days. Most recently, Clamshell was updated on October 8, 2026 and SignalHound on October 8, 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.*