# Smart Sleep Timer vs Flip Clock

The clearest difference is in-app purchases: Smart Sleep Timer at none against Flip Clock's 2. Flip Clock's advantage is update cadence (weekly vs every 8 months) and iOS requirement (15.0 vs 18.2). On price, ads and device support there is nothing between them.

Both are free to download. Flip Clock sells 2 in-app purchases, starting at $0.99 per month. Smart Sleep Timer asks for nothing beyond the download.

Smart Sleep Timer ships an update every 8 months, Flip Clock weekly. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Smart Sleep Timer | Flip Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/smart-sleep-timer/id6739953694/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Weekly** |
| Monetization | Free | — |
| Size | 11 MB | 78 MB |
| Requires iOS | 18.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BRIDGETECH SOLUTIONS LIMITED](https://appshunter.io/developer/497840921) | [福庭 杨](https://appshunter.io/developer/6773165459) |

## What reviewers say

### Smart Sleep Timer

[App page](https://appshunter.io/ios/app/smart-sleep-timer/id6739953694)

This app automatically pauses your media playback when you fall asleep or at a set time. It integrates with your favorite audio and video apps to prevent wasted battery and data.

**Highlights:** Snore detection for automatic pausing, Customizable manual timers, Seamless integration with media apps, Battery and data saving, Adjusts to user's sleep patterns

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

**In-app purchases:** none


### Flip Clock

[App page](https://appshunter.io/ios/app/flip-clock-desk-clock-widget/id6773180947)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $0.99 | per month |
| 年度会员 | $6.99 | per year |


## Frequently asked questions

### Is Smart Sleep Timer free?

Smart Sleep Timer is free to download, with no in-app purchases.

### Is Flip Clock free?

Flip Clock is free to download, with in-app purchases available.

### Do Smart Sleep Timer or Flip Clock have ads?

Neither Smart Sleep Timer nor Flip Clock shows ads.

### Which is updated more often, Smart Sleep Timer or Flip Clock?

Smart Sleep Timer ships an update every 8 months, and Flip Clock weekly. Most recently, Smart Sleep Timer was updated on October 3, 2026 and Flip Clock on October 5, 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.*