FloatHub vs CalaWater
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FloatHub
Monitor your boat's location and system status remotely. View publicly available vessel data nearby and access a history of your boat's key metrics like voltage, speed, and depth.
- Vessel location tracking
- Real-time system status
- Nearby vessel data
- Historical system data
- Voltage, speed, depth monitoring
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The FloatHub app currently lets you see the location and status of your vessel, publicly available data about vessels in your vicinity, and a recent history of your vessels systems (voltages, speed, depth, etc.).
CalaWater
Monitor and control your intelligent heat pump water heater remotely. Track usage, optimize heating schedules for solar production or vacation, and ensure hot water availability. Receive ongoing system updates for improved performance.
- Track hot water usage patterns
- Sync heating with solar production
- View energy usage
- Boost production on demand
- Schedule vacation energy savings
- Monitor real-time availability and performance
- Configure system run times
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The Cala app is the companion to your Cala intelligent heat pump water heater. It allows you to monitor and control key aspects of your system to ensure it performs according to your household’s needs and preferences. With the app, you can: - Track your home’s hot water usage patterns - Sync your water heater to automatically heat during solar production - View your water heater’s energy usage - Boost production when family or guests are in town - Schedule your vacation for energy savings - Monitor hot water availability and performance in real-time - Configure when the system runs to avoid noise or cool air during specific times The Cala app also enables ongoing system updates and performance improvements delivered over time. An internet connection is required to access the features in the Cala mobile app. While your Cala water heater will function without the app, features like remote control and energy optimizations are only available when the app is connected to the internet No subscription is required. The Cala app is free to use.
Screenshots
Verdict
The clearest difference is update cadence: CalaWater at every 2 weeks against FloatHub's every 44 months. CalaWater also leads on ratings volume (6 vs 1). On price, rating, 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.
FloatHub holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: CalaWater has 6 ratings behind it against 1, so its average is the more settled of the two.
FloatHub ships an update every 44 months, CalaWater every 2 weeks. Both last shipped on October 24, 2026.
| Parameter | FloatHub | CalaWater |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.8 (6 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 44 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 14 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Modiot Labs LLC | Cala Systems, Inc. |
Customer experience
FloatHub
CalaWater
In-app purchases
FloatHub
No in-app purchases
CalaWater
No in-app purchases
