Caldera® Spas vs ECHO Water
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Caldera® Spas
Remotely manage your spa's lighting, jets, and temperature. Monitor energy saving modes and cleaning cycles for an enhanced spa experience. Enjoy 24/7 AI support for peace of mind.
- Remote control of lighting, jets, and temperature
- Manage Clean Cycle and Energy Saving Modes
- Control FreshWater® IQ with dosing
- 24/7 AI support
- Monitor spa from anywhere
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Introducing the Reimagined Caldera® Spas App Control & Monitor Your Spa from Anywhere Whether you’re home or away, the reimagined Caldera® Spas app keeps you connected to your spa. Designed to enhance your FreshWater® IQ experience, the new Caldera Spas app takes smart, intuitive spa ownership to the next level. With the app, you can: • Control lighting, jets, and temperature • Manage Clean Cycle and Energy Saving Modes • Control FreshWater® IQ with dosing • 24/7 AI support at your fingertips Whether you’re home or away, peace of mind is always within reach. The Caldera Spas app is powered by the newly released Connected Spa Kit 2, a dealer-installed option available on all Utopia® and Paradise® Series spas from 2024 onward, and Vacanza® Series spas from 2025 onward. Connected Spa Kit 2 delivers enhanced functionality and improved usability compared to the original Connected Spa Kit, which operates with the Caldera Spas Legacy app.
ECHO Water
This app provides a streamlined and dependable interface for operating your Echo Flask. It offers a simplified user experience for managing hydrogen water generation.
- Simplified operation
- Reliable performance
- Echo Flask management
- Hydrogen water generation
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We rebuilt the ECHO Water app from the ground up to deliver a simpler, more reliable way to use your Echo Flask.
Screenshots
Verdict
The clearest difference is rating: ECHO Water at 4.6 against Caldera® Spas's 2.6. ECHO Water also leads on update cadence (every 3 weeks vs every 3 months) and review sentiment (20% vs 0%). On price, ads, in-app purchases and monetization model 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.
ECHO Water holds the better App Store score, 4.6 against 2.6. That said, the two scores are not equally well evidenced: ECHO Water has 138 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 0% of Caldera® Spas's written reviews are positive against 20% of ECHO Water's.
Caldera® Spas ships an update every 3 months, ECHO Water every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | Caldera® Spas | ECHO Water |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (5 ratings) | 4.6 (138 ratings) — better |
| Positive reviews | 0.0% of reviews | 20.3% of reviews — better |
| Number of ratings | 5 | 138 — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 48 MB | 49 MB |
| Age rating | 17+ | 4+ |
| Developer | Watkins Manufacturing Corporation | Echo Water |
Customer experience
Caldera® Spas
ECHO Water
Bugs and requests
Caldera® Spas
Not enough reviews yet to summarise bugs or requests.
ECHO Water
Reported bugs
3 issues- App unable to sync with water bottle
- Inconsistent flask counting
- Bluetooth pairing problems
Requested features
3 requests- Ability to manually log water intake
- Scheduling options for hydrogen water
- Improved app performance and stability
In-app purchases
Caldera® Spas
No in-app purchases
ECHO Water
No in-app purchases
