# Good Night System vs Keep Screen On

The clearest difference is price: Good Night System at Free against Keep Screen On's $0.99. Good Night System also leads on rating (3.7 vs 2.0) and review sentiment (50% vs 40%). Keep Screen On's advantage is ratings volume (12 vs 3). On update cadence, ads, in-app purchases and device support there is nothing between them.

Good Night System is free to download; Keep Screen On costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Good Night System holds the better App Store score, 3.7 against 2.0. Both are backed by a comparable volume of ratings — 3 and 12 respectively. Written reviews point the same way: 50% of Good Night System's written reviews are positive against 40% of Keep Screen On's.

Good Night System ships an update every 6 months, Keep Screen On every 5 months. The most recent releases landed on June 6, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Good Night System | Keep Screen On |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/good-night-system/id646945920/reviews)** | [2.0 (12 ratings)](https://appshunter.io/ios/app/keep-screen-on/id1453969337/reviews) |
| Number of ratings | 3 | **12** |
| Positive reviews | **50.0% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 months** |
| Monetization | **Free** | Paid |
| Size | 19 MB | 11 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lunatico Astronomia S. L.](https://appshunter.io/developer/571006483) | [Duy Nguyen](https://appshunter.io/developer/1444869106) |

## What reviewers say

### Good Night System

[App page](https://appshunter.io/ios/app/good-night-system/id646945920)

This iOS companion app monitors your observatory while you sleep. It will alert you via your iPhone if any issues arise, ensuring peace of mind for astronomers. A free PC application is also available for download.

**Highlights:** Observatory monitoring, Sleep-time alerts, iPhone wake-up notifications, Companion iOS app, Free PC application available

**Features:** macOS Compatibility

**In-app purchases:** none


### Keep Screen On

[App page](https://appshunter.io/ios/app/keep-screen-on/id1453969337)

This utility prevents your device from entering sleep mode while running specific tasks, such as waiting for code builds to finish. It offers customizable timeout settings and an alarm notification upon completion.

**Highlights:** Prevents device sleep mode, Useful for code builds, Customizable timeout, Alarm notification, Runs in background

**In-app purchases:** none


## Frequently asked questions

### Is Good Night System free?

Good Night System is free to download, with no in-app purchases.

### Is Keep Screen On free?

Keep Screen On costs $0.99, with no in-app purchases.

### Which has better reviews, Good Night System or Keep Screen On?

Good Night System is rated higher. Good Night System averages 3.7 out of 5 from 3 ratings, while Keep Screen On averages 2.0 from 12 ratings.

### Do Good Night System or Keep Screen On have ads?

Neither Good Night System nor Keep Screen On shows ads.

### Which is updated more often, Good Night System or Keep Screen On?

Good Night System ships an update every 6 months, and Keep Screen On every 5 months. Most recently, Good Night System was updated on June 6, 2026 and Keep Screen On on September 9, 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.*