U vs CORONA BT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
U
Control your smart lighting system with this app. Set custom schedules for different zones, turn lights on/off manually, and name your zones for easy management. It's a convenient interface for Universal Lighting Systems' Zone Control transformers.
- Set zone schedules
- Manual zone control
- Name custom zones
- Individual zone timing
- System on/off control
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U-SYNC APP is a Wifi enabled smart device app for Universal Lighting Systems, Inc. Zone Control transformers. The App works as an interface to set schedules for zones on the U-SYNC Zone Control products, as well as manually turning the entire system on/off, or multiple zones on/off. Zones can be named and customized to run on individual times for specific durations of time.
CORONA BT
Control smart outdoor lighting fixtures from your phone. Add devices, create custom scenes and groups, and adjust brightness and color. Perfect for everyday use, entertaining, and special occasions.
- Add and manage compatible fixtures
- Create custom scenes and groups
- Adjust brightness
- Choose tunable white and RGBWW colors
- Perfect lighting for any occasion
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Corona BT by FIAT LUX by Corona Lighting puts smart outdoor lighting control at your fingertips. Easily add and manage compatible fixtures, create custom scenes and groups, adjust brightness, and choose from tunable white and RGBWW colors. Create the perfect lighting experience for everyday use, entertaining, holidays, and special occasions.
Screenshots
Verdict
The clearest difference is rating: CORONA BT at 5.0 against U's 3.0. U's advantage is update cadence (every 2 months vs every 11 months) and iOS requirement (10.0 vs 14.0). On price, ratings volume, ads and in-app purchases 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.
CORONA BT holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
U ships an update every 2 months, CORONA BT every 11 months. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.
| Parameter | U | CORONA BT |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 10.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 49 MB | 229 MB |
| Age rating | 4+ | 12+ |
| Developer | Universal Lighting System | Corona Lighting Inc. |
Customer experience
U
CORONA BT
In-app purchases
U
No in-app purchases
CORONA BT
No in-app purchases
