Geca Watch by Hydrostasis vs ECHO Water
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Geca Watch by Hydrostasis
This app helps you monitor your hydration levels using a connected device that measures skin hydration. It provides real-time updates, personalized recommendations for water intake, and tracks your daily and weekly hydration trends to promote better health and wellness.
- Skin hydration measurement
- Real-time updates
- Personalized water intake recommendations
- Daily and weekly hydration trend tracking
- Habit building for optimal hydration
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The Geca Watch uses light to measure hydration levels in the skin and sends real-time updates to the companion app. Let the app guide you through a calibration process to get feedback about your hydration and track how much you actually drink. You’ll also get recommendations so you’ll know exactly how much water to drink to stay hydrated. Build healthy habits by tracking your daily and weekly hydration trends in the dashboard. Improve your health and wellness through optimal hydration, every day.
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: Geca Watch by Hydrostasis at 5.0 against ECHO Water's 4.6. Geca Watch by Hydrostasis also leads on iOS requirement (13.0 vs 15.1). ECHO Water's advantage is ratings volume (143 vs 3). 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.
Geca Watch by Hydrostasis holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: ECHO Water has 143 ratings behind it against 3, so its average is the more settled of the two.
Geca Watch by Hydrostasis ships an update every 5 weeks, ECHO Water every 3 weeks. Both last shipped on November 4, 2026.
| Parameter | Geca Watch by Hydrostasis | ECHO Water |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.6 (143 ratings) |
| Positive reviews | — | 20.7% of reviews |
| Number of ratings | 3 | 143 — better |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 62 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Hydrostasis Inc. | Echo Water |
Customer experience
Geca Watch by Hydrostasis
ECHO Water
Bugs and requests
Geca Watch by Hydrostasis
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
Geca Watch by Hydrostasis
No in-app purchases
ECHO Water
No in-app purchases
Questions
Is Geca Watch by Hydrostasis free?
Is ECHO Water free?
Which has better reviews, Geca Watch by Hydrostasis or ECHO Water?
Do Geca Watch by Hydrostasis or ECHO Water have ads?
Which is updated more often, Geca Watch by Hydrostasis or ECHO Water?
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