Clamshell vs Extender
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Clamshell
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.
- Monitor Mac lid states
- Track system statuses (Awake, Sleep, etc.)
- Remote monitoring from iPhone/iPad
- iCloud synchronization
- Supports Mac desktops
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Clamshell goes to iPhone and iPad! This is an iOS version of the Clamshell app. It provides monitoring states of all your Macs from your iPhones and iPads that are signed in to the same iCloud account. Clamshell now supports sharing the laptop lid statuses and system statuses (Awake, Sleeping, Logging out, Restarting, Shutting down, Restarted, Shut Down, User Logged Out, App Terminated). More statuses will come in the year. No data is shared with third-party providers. Clamshell is not using any external servers but only Apple's iCloud servers. You're in full control of your data! Note for users of iMac, Mac mini, Mac Studio, and Mac Pro: Clamshell is useful for you finally! Use it to monitor statuses of your Mac desktops remotely from iPhone/iPad. Yay!
Extender
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Expand your workspace with your iPhone or iPad! This app wirelessly turns your device into a seamless second display for your Mac — perfect for multitasking, organizing windows, and boosting productivity. Smooth wireless connection Works over local Wi-Fi network 100% privacy — no data collected or stored By using this app, you agree to Apple’s Terms of Use, which can be found at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Clamshell at none against Extender's 2. Clamshell also leads on update cadence (every 6 weeks vs every 8 months). Extender's advantage is iOS requirement (15.0 vs 18.4). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Extender sells 2 in-app purchases, starting at $14.99 per month. Clamshell asks for nothing beyond the download.
Clamshell ships an update every 6 weeks, Extender every 8 months. The most recent releases landed on October 8, 2026 and October 12, 2026 respectively.
| Parameter | Clamshell | Extender |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 18.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Kovrazhkin | ygal brami |
In-app purchases
Clamshell
No in-app purchases
Extender
- Remove all ads for a month$14.991 Month
- remove all ads for a year$119.991 Year
