# Good Night System vs Bubble Level + Compass Pro

The clearest difference is review sentiment: Bubble Level + Compass Pro at 100% against Good Night System's 50%. Bubble Level + Compass Pro also leads on rating (5.0 vs 3.7) and ratings volume (22 vs 3). Good Night System's advantage is price (Free vs $0.99) and update cadence (every 6 months vs every 17 months). On ads, in-app purchases and device support there is nothing between them.

Good Night System is free to download; Bubble Level + Compass Pro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Bubble Level + Compass Pro holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Bubble Level + Compass Pro has 22 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of Good Night System's written reviews are positive against 100% of Bubble Level + Compass Pro's.

Good Night System ships an update every 6 months, Bubble Level + Compass Pro every 17 months. The most recent releases landed on September 25, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Good Night System | Bubble Level + Compass Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/good-night-system/id646945920/reviews) | **[5.0 (22 ratings)](https://appshunter.io/ios/app/bubble-level-plus-compass-pro/id988590222/reviews)** |
| Number of ratings | 3 | **22** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 17 months |
| Monetization | **Free** | Paid |
| Size | 19 MB | 7 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Lunatico Astronomia S. L.](https://appshunter.io/developer/571006483) | [Dimitrios Kechagias](https://appshunter.io/developer/970157964) |

## 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


### Bubble Level + Compass Pro

[App page](https://appshunter.io/ios/app/bubble-level-plus-compass-pro/id988590222)

This utility app provides a precise spirit level and compass for your iPhone and Apple Watch. Get live readings on your wrist, even when your phone's screen is out of sight. Features include bullseye, horizontal, and vertical levels with 0.1-degree precision.

**Highlights:** Bullseye, horizontal, and vertical levels, 0.1-degree precision, True and magnetic heading, Apple Watch companion app, Gyro or accelerometer sensor mode, Red-light night mode

**Features:** Apple Watch app, Vision Pro support

**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 Bubble Level + Compass Pro free?

Bubble Level + Compass Pro costs $0.99, with no in-app purchases.

### Which has better reviews, Good Night System or Bubble Level + Compass Pro?

Bubble Level + Compass Pro is rated higher. Good Night System averages 3.7 out of 5 from 3 ratings, while Bubble Level + Compass Pro averages 5.0 from 22 ratings.

### Do Good Night System or Bubble Level + Compass Pro have ads?

Neither Good Night System nor Bubble Level + Compass Pro shows ads.

### Which is updated more often, Good Night System or Bubble Level + Compass Pro?

Good Night System ships an update every 6 months, and Bubble Level + Compass Pro every 17 months. Most recently, Good Night System was updated on September 25, 2026 and Bubble Level + Compass Pro on October 10, 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.*