# Sleep Defender — Kids Color Coded Alarm Clock

> Visual, silent alarm clock for children to manage wake-up times. (iPhone/iPad app by Andrew Czupik.)

- Source: https://appshunter.io/ios/app/sleep-defender/id907737933 (this page in markdown: same URL + `.md`)
- Developer: [Andrew Czupik](https://appshunter.io/developer/814200404)
- Category: Utilities, Lifestyle
- Price: $0.99
- Rating: 4.40/5 from 10 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 2 MB
- Languages: English
- Released: 2014-08-14
- Data updated: 2026-06-13
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/sleep-defender/id907737933/reviews.md

## What is Sleep Defender?

Defend Your Sleep! 

Any parent with a young child knows how difficult it can be to get a good night’s sleep. Your child can come in at any time and wake you up asking if it’s time to get up. Now there’s a remedy — Sleep Defender.

Sleep Defender uses the colors of the stoplight to silently indicate when it’s ok to get up. Red, stay in bed. Green, get up. Optional yellow, it’s ok to be up, but quiet. A great feature of Sleep Defender is that it doesn’t make a sound, so it will never wake a sleeping child.

Sleep Defender sizes the clock numbers to fit the device screen, so that they are BIG, and can easily be seen from across the room.

Sleep Defender is easy to use — ideal for use in a dark room when you’re tired. Set the alarms on one screen with just a few touches. Adjust the clock brightness quickly on the clock face. Tap alarm indicators to recall alarm times.

Sleep Defender was developed out of necessity. It worked with my children and I am confident it will work with yours. Get that good night’s sleep you deserve.

Sleep Defender is a tremendous help for timeouts and can be used as a silent timer. It’s also ideal for those with special needs that are unable to tell time.

If you leave the iOS device on all night, a charger is probably a good idea.

Questions or comments:  support@accthree.com

Features:

- big clock numbers can be seen from across the room
- only kids’ alarm clock with separate yellow alarm
- simple one screen setup
- silent so it won’t wake a sleeping child
- easy brightness controls
- alarm indicators that show alarm times when tapped
- clock face can be numbers or a stoplight
- tutorial page to make sure alarms are setup properly
- clock automatically returns to red 2 hours after alarm
- clock resets to red at midnight

## Key features

- Silent stoplight alarm system
- Color-coded wake-up indicators
- Large, easy-to-read clock numbers
- Simple one-screen setup
- Adjustable brightness controls
- Silent timer for timeouts

## Chart rankings

- #200 in Top Paid · Utilities (US App Store)

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/sleep-defender/id907737933/reviews.md

### 3/5 — Good, small tweaks would make it great

*2018-09-21, version 1.3*

I suggest two small improvements:
1) The yellow and green numbers look too similar. I suggest making the yellow more orange. 
2) I don’t like that the clock turns back to red during the day. I wish I could set a time for it to switch from green to red in the evening. The red during the day is confusing to my toddler.

### 4/5 — Like the concept

*2018-07-19, version 1.3*

Really like the concept, but was hoping to use it basically in reverse, as more of ‘time is up’ timer, going from green to red, which it currently isn’t set up to do.

### 5/5 — Good response from developer

*2018-01-01, version 1.2*

I posted an issue with app not working on my iPad. Developer responded immediately that an Apple update had caused the dysfunction and he was working to correct (and did so). App working well now.

### 3/5 — Great

*2016-05-07, version 1.0*

Great in theory, I have an older iPod I use for white noise in my Son's room. Well because this app requires 7.0 and later I cannot download on the older iPod. I love that it doesn't interfere with the playing of the white noise on my iPhone 6 but it's worthless to me on my phone and not on my sons iPod. I think many people use older or used gadgets for their children. It's also great that the background is black and also allows the phone to sleep to diminish interference with sleep. Wish I could use it!

### 4/5 — Works Great

*2014-09-12, version 1.0*

This is pretty much exactly what I was looking for. Only thing that would make it better is some sort of optional way to indicate passage of time. Could be gradual color change or maybe some other clock element like a rectangle that fills in gradually.

## Frequently asked questions about Sleep Defender

### What is Sleep Defender?

Sleep Defender is a paid utility app designed to help parents manage their children's wake-up times. It uses a silent, visual alarm system with stoplight colors to indicate when it's okay to get out of bed.

### How does Sleep Defender's alarm system work?

The app uses red for 'stay in bed,' green for 'get up,' and an optional yellow for 'quiet time.' This silent system prevents waking a sleeping child and provides a clear visual cue for young children who cannot tell time.

### What devices does Sleep Defender support?

Sleep Defender is available for iPhone, iPad, and iPod devices, indicated by its support for these platforms.

### What is the price of Sleep Defender?

Sleep Defender is a paid app, priced at $0.99. There are no in-app purchases or advertisements mentioned.

### How often is Sleep Defender updated?

The app was last updated on March 22, 2018, to version 1.3. While updates are not frequent, the core functionality remains stable for its intended purpose.

### Is Sleep Defender suitable for children with special needs?

Yes, the app is ideal for children with special needs who are unable to tell time, as it relies on simple visual cues rather than numerical time reading.

### Can Sleep Defender be used for timeouts?

Yes, Sleep Defender can function as a silent timer, making it a helpful tool for managing timeouts or other timed activities for children.

### What is the age rating for Sleep Defender?

Sleep Defender has an age rating of 4+, making it suitable for children aged four and older.

## Version history (last 3 releases)

### 1.3 — 2018-03-22

Fixed tutorial page for iPhone 4s.

### 1.2 — 2017-12-28

Now iOS 11 compatible. 
iPad support more orientations on setup screen.

### 1.0 — 2014-08-14

No release notes.

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## More apps by Andrew Czupik

- [Junior Astronomer Solar System Adventure](https://appshunter.io/ios/app/junior-astronomer-solar-system-adventure/id955294750)

All apps by Andrew Czupik: https://appshunter.io/developer/814200404

## Related topics

[andrew czupik](https://appshunter.io/ios/topics/andrew-czupik)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-13.*