SmartLife vs Optimal°
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartLife
Control your home appliances remotely from anywhere. Manage multiple devices simultaneously, set timers for automated functions, and easily share device access with family members. Connect your smart devices quickly and efficiently.
- Remote appliance control
- Simultaneous device management
- Automated timers
- Device sharing with family
- Easy device connection
- IPC control
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Smart life, smart living 1. Remote control: control home appliances from anywhere 2. Simultaneously control: control multiple devices with one App 3. Timer: set timer to perform multiple functions 4. Device sharing: One tap to share devices among family members 5. Easy connection: easily and quickly connect App to devices 6.IPC control:use the same App to control your T-Guardian and its IPC
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 rating: SmartLife at 4.7 against Optimal°'s 3.9. SmartLife also leads on ratings volume (1.9K vs 9) and iOS requirement (13.0 vs 15.1). Optimal°'s advantage is review sentiment (60% vs 27%). On price, update cadence, 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.
SmartLife holds the better App Store score, 4.7 against 3.9. That said, the two scores are not equally well evidenced: SmartLife has 1.9K ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 27% of SmartLife's written reviews are positive against 60% of Optimal°'s, so the app with the better star average is not the one people write more warmly about.
SmartLife ships an update every 4 months, Optimal° every 5 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | SmartLife | Optimal° |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.9K ratings) — better | 3.9 (9 ratings) |
| Positive reviews | 26.7% of reviews | 60.0% of reviews — better |
| Number of ratings | 1.9K — better | 9 |
| Update frequency | Every 4 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 206 MB | 19 MB |
| Age rating | 12+ | 17+ |
| Developer | Guangdong Wankezi Intelligent Control Technology Co.,Ltd. | Its Optimal LLC |
Customer experience
SmartLife
Optimal°
Bugs and requests
SmartLife
Reported bugs
5 issues- QR code scanning not working
- Login screen not functioning
- Devices not detected
- Frequent app crashes
- Settings not saving properly
Requested features
6 requests- Add indoor temperature display
- Integrate with Apple HomeKit
- Implement dark mode
- Add Apple Watch support
- Improve Alexa integration
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- Enhance automation and scheduling options
Optimal°
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SmartLife
No in-app purchases
Optimal°
No in-app purchases
