Hot Spring® Spas Legacy vs Serenity Engine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hot Spring® Spas Legacy
Remotely control and monitor your spa's temperature, jets, and lighting. Manage your spa from any location, even at a second home or rental property. Grant access to service professionals and receive alerts for prompt attention.
- Set water temperature remotely
- Control jets and lighting from anywhere
- Monitor FreshWater® Salt System
- Manage spas at multiple locations
- Grant access to service professionals
- Receive attention alerts
Read full descriptionHide full description
Control and Monitor Your Spa From Home or on the Go App name changed from "Hot Springs Spas" to "Hot Springs Spas Legacy" No impact to app functionality Note: Not compatible with 2025 Hot Spot Collection spas Experience smart, simple, stress-free spa ownership with the Hot Spring® Spas Legacy app, powered by the Connected Spa Kit. * With just a touch: • Set water temperature, jets, and lighting from anywhere. • Monitor and adjust the FreshWater® Salt System remotely. • Manage a spa at a second home or rental property. • Give service professionals access. • React quickly when attention is needed *May not be compatible with certain Hot Spot(R) models. Ask your dealer for details.
Serenity Engine
Create immersive ambient soundscapes for focus, relaxation, and sleep. Features curated sound presets, binaural beats for brainwave tuning, and a gentle sleep timer. Enjoy a beautiful visualizer and a distraction-free, ad-free interface.
- Curated ambient soundscapes
- Binaural beats for brainwave tuning
- Focus, Relax, and Sleep modes
- Customizable sleep timer
- Real-time audio visualizer
- Minimalist, ad-free interface
Read full descriptionHide full description
Serenity creates immersive ambient soundscapes to help you focus, relax, and sleep better. Curated Soundscapes Choose from carefully designed presets combining nature sounds, gentle noise, atmospheric drones, and binaural beats. Each soundscape is crafted to create the perfect atmosphere for work, meditation, or rest. Binaural Beats Tune your brainwaves with scientifically-inspired binaural frequencies: - Focus mode (10 Hz Alpha) for concentration - Relax mode (6 Hz Theta) for meditation - Sleep mode (2 Hz Delta) for deep rest Sleep Timer Set a timer and drift off peacefully. Serenity fades out gently so you wake up refreshed. Beautiful Visualizer Watch mesmerizing particle animations that respond to the audio in real-time. Perfect for winding down or creating ambiance. Simple & Calm A minimal interface that respects your attention. No ads, no distractions—just calm.
Screenshots
Verdict
The clearest difference is rating: Serenity Engine at 5.0 against Hot Spring® Spas Legacy's 1.4. Hot Spring® Spas Legacy's advantage is ratings volume (59 vs 1) and iOS requirement (13.0 vs 17.0). 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.
Serenity Engine holds the better App Store score, 5.0 against 1.4. That said, the two scores are not equally well evidenced: Hot Spring® Spas Legacy has 59 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | Hot Spring® Spas Legacy | Serenity Engine |
|---|---|---|
| Price | Free | Free |
| Rating | 1.4 (59 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 10.9% of reviews | — |
| Number of ratings | 59 — better | 1 |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 24 MB | 120 MB |
| Age rating | 4+ | 4+ |
| Developer | Watkins Manufacturing Corporation | ANDREW BRODIE LANDRY |
Customer experience
Hot Spring® Spas Legacy
Serenity Engine
Bugs and requests
Hot Spring® Spas Legacy
Reported bugs
78 issues- Constantly needs resetting
- May not always work after resetting
- App doesn't show proper information
- Salt output doesn't match panel display
- Doesn't have confidence it reads temp right
Show 73 moreShow fewer
- Impossible to tell if connected or providing 'dummy' data
- Round gauge doesn't match panel gauge
- Simply stopped working
- Can't control spa anymore
- Never sent confirmation email
- Doesn't work
- Always disconnects
- Temp isn't what is set
- Salt level is wrong
- Worked for about the first week
- Completely worthless
- Does little to nothing for Bluetooth connectivity
- Can't turn up chlorine system
- Can't turn on lights
- Pretty much nothing works
- Super glitchy
- No audio control other than input type
- No reporting of water quality monitor
- Salt system reporting only
- Can't control lights
- Can't adjust light color
- App doesn't work
- Only worked for about a day after resetting
- Going on for two years
- Can't control it remotely
- Worked OK for a little while
- Extremely buggy and slow
- Terrible design
- Just doesn't work at all
- Bare bones controls don't work consistently
- Routinely sends false notifications
- Cannot always remotely control simple features
- App has never worked since installation
- Never ever worked
- Second attempt at Wifi is another failure
- Data could not be read because it isn't in the correct format
- No answer from Watkins/Hot Springs
- Previous app worked perfectly most of the time
- New app works some of the time
- App completely logged me out
- Can't get back in
- Zero info about occasional alerts
- Does not stay connected
- App acknowledges change but it hasn't actually happened
- Had to unplug and shut power off multiple times to reconnect
- Constant logging outs
- Network adapter keeps getting disconnected
- Set temp and tub becomes inaccessible
- App crashes frequently
- Does not notify when communication is lost
- Changing settings doesn't change chlorine output
- App doesn't allow login
- Effective only about 50% of the time
- App no longer works
- Error message: 'data couldn't be read because it isn't in the correct format'
- Won't let me sign on
- Reading about incorrect format to login
- Multiple problems connecting
- Can't log in
- Tells me format can't be read as received
- Can't Log In Nor Create Account
- App stopped working
- No longer able to login
- Upgraded iOS, still same error
- App not working
- No ability to adjust anything or view notifications
- Software 'reduced flow' error
- Laggy
- Bluetooth feature requires re-pairing phone
- Signs me out constantly
- Temperature setting is fiddly and slow
- Doesn't say it can't connect to the spa
- Bluetooth connectivity for music is poor
Requested features
25 requests- 💡 Choose light colors
- 💡 Control light colors
- 💡 Scheduling for water heat up
- 💡 HomeKit compatibility
- 💡 Smart home system connectivity
Show 20 moreShow fewer
- 💡 Time any kind of event
- 💡 Start a clean cycle
- 💡 Program lighting moods
- 💡 Dashboard for water quality/filter life
- 💡 Calculator for chemical dosing
- 💡 View water IQ info (PH, Chlorine, Salt)
- 💡 Clean cycle via app
- 💡 Apple Watch version
- 💡 Toggle light colors
- 💡 Run a clean cycle
- 💡 Shortcuts for Apple Shortcuts app
- 💡 Control in Apple ecosystem
- 💡 Run cleaning cycles automatically
- 💡 Bring tub in/out of summer savings mode
- 💡 Dial temp down/up on schedule
- 💡 Notifications for low temperature
- 💡 Text notifications
- 💡 Dashboard for potential issues
- 💡 View life of salt system/IQ system remaining
- 💡 Control light intensity
Serenity Engine
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Hot Spring® Spas Legacy
No in-app purchases
Serenity Engine
No in-app purchases
Questions
Is Hot Spring® Spas Legacy free?
Is Serenity Engine free?
Which has better reviews, Hot Spring® Spas Legacy or Serenity Engine?
Do Hot Spring® Spas Legacy or Serenity Engine have ads?
Other comparisons
