# M2E vs When

The clearest difference is review sentiment: When at 90% against M2E's 0%. When also leads on update cadence (weekly vs every 69 months). M2E's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, in-app purchases, device support 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.

M2E ships an update every 69 months, When weekly. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | M2E | When |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (28 ratings)](https://appshunter.io/ios/app/when-flip-clock/id1539325158/reviews)** |
| Number of ratings | — | **28** |
| Positive reviews | 0.0% of reviews | **90.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 69 months | **Weekly** |
| Monetization | **Free** | Ad-supported |
| Size | 6 MB | 73 MB |
| Requires iOS | 10.0 | 10.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [剑 熊](https://appshunter.io/developer/820792877) | [磊 岑](https://appshunter.io/developer/1102462338) |

## What reviewers say

### M2E

[App page](https://appshunter.io/ios/app/m2e/id820792874)

Remotely control a GSM alarm system to protect your home. Features include zone management, automated calls and SMS alerts, and remote arming/disarming. Offers voice prompts and message recording for enhanced security.

**Highlights:** Remote control of GSM alarm system, Zone management (wired and wireless), Automated calls and SMS alerts, Voice prompts and message recording, Real-time and delayed zone programming, One-key control functions

**Features:** macOS Compatibility

**In-app purchases:** none


### When

[App page](https://appshunter.io/ios/app/when-flip-clock/id1539325158)

This app offers a minimalist flip clock experience with customizable widgets. It features a full-screen display with classic page-turning animations and adjustable brightness. Personalize your time display with options for seconds, date, and week.

**Highlights:** Full-screen classic flip animation, Minimalist design style, Customizable time display (seconds, date, week), 12/24 hour mode switching, Adjustable screen brightness, Multiple widget options (Flip Clock, Digital Clock, Calendar, Progress Bar, Disc Clock)

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

**In-app purchases:** none


## Frequently asked questions

### Is M2E free?

M2E is free to download, with no in-app purchases.

### Is When free?

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

### Do M2E or When have ads?

When shows ads; M2E does not.

### Which is updated more often, M2E or When?

M2E ships an update every 69 months, and When weekly. Most recently, M2E was updated on October 1, 2026 and When on October 14, 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.*