# Simple Sleep Timer for Babies vs YLKB

The clearest difference is price: YLKB at Free against Simple Sleep Timer for Babies's $4.99. YLKB also leads on iOS requirement (12.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

YLKB is free to download; Simple Sleep Timer for Babies costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Simple Sleep Timer for Babies | YLKB |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Size | 2 MB | 32 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Talkabout Design LLC](https://appshunter.io/developer/913695621) | [Shenzhen Jiechenxin Technology Co., Ltd](https://appshunter.io/developer/1450224562) |

## What reviewers say

### Simple Sleep Timer for Babies

[App page](https://appshunter.io/ios/app/simple-sleep-timer-for-babies/id1479923124)

**Features:** Apple Watch app

**In-app purchases:** none


### YLKB

[App page](https://appshunter.io/ios/app/ylkb/id6748665356)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Simple Sleep Timer for Babies free?

Simple Sleep Timer for Babies costs $4.99, with no in-app purchases.

### Is YLKB free?

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

### Do Simple Sleep Timer for Babies or YLKB have ads?

Neither Simple Sleep Timer for Babies nor YLKB shows ads.

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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.*