FITUEYES vs Optimal°
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FITUEYES
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1. Create a colorful atmosphere 2. Enjoy an immersive entertainment lighting experience 3. Visual sound effects 4. Customize your lighting experience with your smartphone 5. Control lamps with voice 6. Support Dolby Vision 7. Intelligent control drive height adjustment
Optimal°
This app provides remote control and monitoring for a specific brand of tankless water heaters. Users can adjust temperature, track performance metrics, and receive diagnostic information for efficient hot water management.
- Set water heater output temperature
- Monitor unit activity state
- Track flow rate and energy consumption
- View inlet and outlet water temperatures
- Access diagnostics and error codes
- Enable Vacation Mode
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Control and Monitor your Optimal Opti Tankless Water Heater with the Optimal° connected app. Optimal° app allows you to control temperature, monitor performance and unit diagnostics, giving you full control of our hot water services. Optimal's patent pending ultrasonic flow sensors allow you to add your water heater to your smart home intelligence. Optimal° allows you to precisely customize how hot water is delivered to your faucets. Save money, be efficient and that's Optimal. Current App Version functionality. - Set water heater output temperature - Unit activity state (heating / not heating) - Gallons / min flow rate - Kilowatts per hour rate - Inlet Water Temperature - Outlet Water Temperature - Input Voltage - Available Flow Rate - Heater Capacity - Vacation Mode - Diagnostics / Error Code Reporting
Screenshots
Verdict
The clearest difference is update cadence: Optimal° at every 5 months against FITUEYES's every 23 months. FITUEYES's advantage is iOS requirement (12.2 vs 15.1). 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.
FITUEYES ships an update every 23 months, Optimal° every 5 months. The most recent releases landed on May 19, 2026 and June 1, 2026 respectively.
| Parameter | FITUEYES | Optimal° |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (7 ratings) — better |
| Positive reviews | — | 60.0% of reviews |
| Number of ratings | — | 7 — better |
| Update frequency | Every 23 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.2 — better | 15.1 |
| Further details — not scored | ||
| Size | 150 MB | 19 MB |
| Age rating | 4+ | 17+ |
| Developer | 黎明 陶 | Its Optimal LLC |
In-app purchases
FITUEYES
No in-app purchases
Optimal°
No in-app purchases
