Good Night System vs PicoStar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Good Night System
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.
- Observatory monitoring
- Sleep-time alerts
- iPhone wake-up notifications
- Companion iOS app
- Free PC application available
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The iOS companion for our Good Night System. With this app, your observatory will be monitored while you sleep... at last, and should anything go wrong, your iPhone will wake you up. Before purchasing, please download and try the free app to check everything runs fine. Please visit our web site for details and to download the FREE Windows PC application
PicoStar
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Calibrate any telescope using true-to-scale planetary images.
Screenshots
Verdict
The clearest difference is in-app purchases: Good Night System at none against PicoStar's 1. Good Night System also leads on iOS requirement (8.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. PicoStar sells 1 one-off in-app purchase. Good Night System asks for nothing beyond the download.
Good Night System ships an update every 6 months, PicoStar every 7 months. The most recent releases landed on September 25, 2026 and October 2, 2026 respectively.
| Parameter | Good Night System | PicoStar |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 19 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Lunatico Astronomia S. L. | Ryan Rudes |
In-app purchases
Good Night System
No in-app purchases
PicoStar
- Planetary Expansion Pack$9.99
