True REST Float Spa vs HydroFlow Ocean
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
True REST Float Spa
Easily book appointments at a float spa, find directions, and view the latest updates and photos. Discover a relaxing experience with convenient access to spa information.
- Book appointments
- Get directions
- View Facebook updates
- Access photo gallery
- Spa information
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In this app you can book an appointment, find nearby spas, manage packages and vouchers, and much more.
HydroFlow Ocean
This app transforms daily water intake into a growing virtual ocean filled with collectible marine creatures. Track your hydration, earn achievements, and visualize your progress with interactive widgets and Apple Watch integration.
- One-tap water logging
- Living ocean visualization
- Collectible marine creatures
- Daily and weekly analytics
- Home screen widget
- Apple Watch integration
- Optional Apple Health sync
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HydroFlow Ocean turns daily hydration into a Living Ocean you grow over time. Hit your water goals and unlock original marine creatures across coral reef, open ocean, deep water, and the abyss—32 collectible creatures with your own ocean collection cards. KEY FEATURES • One-tap crystal button logging (long-press for beverages) • Living Ocean that grows as you stay consistent • Fixed reminders with next-day auto-scheduling • Today + 7-day analytics and achievement wall • Small Home Screen widget; Apple Watch progress and tap-to-add water • Optional Apple Health sync • Local-first: no account, no ads, no third-party trackers PRO (one-time lifetime unlock — no subscription) • Adaptive rolling reminders • 14-day and 30-day analytics • 30-day wall + monthly archives • Full ocean collection beyond the reef (32 creatures) • Medium widget + richer Watch beverage tools • Mood diary notes, more beverages, full share report Drink water. Build your ocean.
Screenshots
Verdict
The clearest difference is review sentiment: HydroFlow Ocean at 100% against True REST Float Spa's 31%. HydroFlow Ocean also leads on rating (5.0 vs 2.5). True REST Float Spa's advantage is in-app purchases (none vs 1) and ratings volume (41 vs 3). On price, update cadence, ads 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. HydroFlow Ocean sells 1 one-off in-app purchase. True REST Float Spa asks for nothing beyond the download.
HydroFlow Ocean holds the better App Store score, 5.0 against 2.5. That said, the two scores are not equally well evidenced: True REST Float Spa has 41 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 31% of True REST Float Spa's written reviews are positive against 100% of HydroFlow Ocean's.
Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.
| Parameter | True REST Float Spa | HydroFlow Ocean |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (41 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 30.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 41 — better | 3 |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 44 MB | 46 MB |
| Age rating | 9+ | 12+ |
| Developer | True REST | Ningzhe Wen |
Customer experience
True REST Float Spa
HydroFlow Ocean
In-app purchases
True REST Float Spa
No in-app purchases
HydroFlow Ocean
- HydroFlow Pro$3.99
Questions
Is True REST Float Spa free?
Is HydroFlow Ocean free?
Which has better reviews, True REST Float Spa or HydroFlow Ocean?
Do True REST Float Spa or HydroFlow Ocean have ads?
Which is updated more often, True REST Float Spa or HydroFlow Ocean?
Other comparisons
