Hydrow vs Vision AR by Caldera® Spas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hydrow
Access over 5,000 on-and-off rower workouts led by elite athletes filmed in beautiful locations. Track performance, connect with a community, and share achievements. Compatible with Concept2 PM5 rowers for integrated metrics and leaderboards.
- 5,000+ on-and-off rower workouts
- Elite athlete instructors
- Global scenic filming locations
- Performance tracking
- Rowing community features
- Strava and Apple Health integration
- Concept2 PM5 rower compatibility
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Hydrow offers more than just a full-body workout – access over 5,000 on-and-off rower workouts led by elite athletes and filmed in stunning locations around the globe. Feature overview: • Track your performance and stay connected to a passionate rowing community: cheer on fellow rowers, form racing teams, and review racing stats • Share your achievements on Strava • Apple Health integration for further personalization • Now compatible with Concept2 PM5 rowers, Hydrow offers serious rowers the variety they seek, allowing you to pair your iPhone or iPad for in-workout rowing metrics and participate in competitive leaderboards Whether you aim to build strength, improve endurance, or perfect your technique, Hydrow delivers the benefits of rowing wherever you are.
Vision AR by Caldera® Spas
Visualize hot tubs in your own space using augmented reality. Explore different models, color combinations, and see how they fit before you buy. Share your selections with dealers to find your perfect spa.
- View spa models in 3D
- Visualize in your space
- Try different color combinations
- Take and share pictures
- Browse and compare models
- Send favorites to dealer
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Finding Your Perfect Hot Tub Just Got Easier! Vision AR by Caldera Spas lets you shop and compare models virtually, in any color combination, and see how they look in your space. With a touch: • View any spa model in 3D • See how it looks in your space Try out different color combinations Take a pic and share • Browse and compare • Send your favorites to your dealer • Find your perfect spa Start enjoying the full wellness benefits that come from making a Caldera spa a part of your daily ritual!
Screenshots
Verdict
The clearest difference is rating: Hydrow at 4.8 against Vision AR by Caldera® Spas's 3.9. Hydrow also leads on update cadence (every 3 weeks vs every 4 months) and ratings volume (3.6K vs 8). Vision AR by Caldera® Spas's advantage is in-app purchases (none vs 1) and iOS requirement (15.0 vs 18.6). On price, review sentiment, 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. Hydrow sells 1 in-app purchase, starting at $29.99 per month. Vision AR by Caldera® Spas asks for nothing beyond the download.
Hydrow holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: Hydrow has 3.6K ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 59% of Hydrow's written reviews are positive against 67% of Vision AR by Caldera® Spas's, so the app with the better star average is not the one people write more warmly about.
Hydrow ships an update every 3 weeks, Vision AR by Caldera® Spas every 4 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.
| Parameter | Hydrow | Vision AR by Caldera® Spas |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (3.6K ratings) — better | 3.9 (8 ratings) |
| Positive reviews | 59.2% of reviews | 66.7% of reviews — better |
| Number of ratings | 3.6K — better | 8 |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 18.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 187 MB | 143 MB |
| Age rating | 4+ | 4+ |
| Developer | Hydrow, Inc. | Watkins Manufacturing Corporation |
Customer experience
Hydrow
Vision AR by Caldera® Spas
Bugs and requests
Hydrow
Reported bugs
3 issues- App crashes during workouts
- Difficulty logging in or syncing account
- Inconsistent video/audio quality
Requested features
4 requests- Ability to search/filter workouts
- More data analytics and tracking
- Integration with other fitness devices/apps
- Ability to manage account on app/website
Vision AR by Caldera® Spas
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Hydrow
- Digital Basic1 Month trial$29.991 Month
Vision AR by Caldera® Spas
No in-app purchases
Questions
Is Hydrow free?
Is Vision AR by Caldera® Spas free?
Which has better reviews, Hydrow or Vision AR by Caldera® Spas?
Do Hydrow or Vision AR by Caldera® Spas have ads?
Which is updated more often, Hydrow or Vision AR by Caldera® Spas?
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