Good Night System vs SOFY PV
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
SOFY PV
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SOFY is a brand new generation of Intelligent Energy Management Application, which is specially designed for global users. With the basic features of full-on visual experience, excellent data display and all-round monitoring, it achieves the goal of convenient operation. 【Build a Plant within 1 min】 No need to fill in tedious information. SOLENSO Big Data will help to enrich more contents. 【24-hour Remote Monitoring】 Go to SOFY APP to check running status of PV power plant at anytime and anywhere. Reveal all data (Production, Consumption, Battery, Grid, Real-time, Historical Data and etc,.) at a glance. 【Efficient Coordination】 Add authorization function. Users can authorize the plant you created to your business partner to do O&M cooperatively. Meanwhile, users can receive the plant from your business partner, which means users do not have to create a plant or configure the devices.
Screenshots
Verdict
The clearest difference is update cadence: SOFY PV at every 2 days against Good Night System's every 6 months. Good Night System's advantage is iOS requirement (8.0 vs 12.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Good Night System ships an update every 6 months, SOFY PV every 2 days. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.
| Parameter | Good Night System | SOFY PV |
|---|---|---|
| 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 | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 8.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 19 MB | 70 MB |
| Age rating | 4+ | 17+ |
| Developer | Lunatico Astronomia S. L. | Solenso electronic materials Co.,Ltd |
In-app purchases
Good Night System
No in-app purchases
SOFY PV
No in-app purchases
Questions
Is Good Night System free?
Is SOFY PV free?
Do Good Night System or SOFY PV have ads?
Which is updated more often, Good Night System or SOFY PV?
Other comparisons
