HotTub&Pool vs ControlMySpa
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HotTub&Pool
This utility app helps hot tub, spa, and pool owners accurately calculate chemical dosages for water balancing. It supports calculations for alkalinity, pH, sanitizer, and stabilizer, along with water balancing features like the Langelier Saturation Index (LSI).
- Chemical dosage calculation
- Water balancing (LSI)
- Pool volume calculator
- Flow rate calculator
- Turnover calculator
- Filter size calculator
Read full descriptionHide full description
Calculator for hot tub, spa and pool owners to take the guesswork out of how much of each chemical you should be adding. The calculator will correctly work out doses for Calcium, raising and lowering alkalinity and pH, and adding the correct amounts of sanitizer and stabiliser. Also includes water balancing feature to allow you to calculate your pools or hot tubs Langelier Saturation Index (LSI) to help maintain an efficient and smooth running system. Common Pool Calculators • Pool Volume Calculator • Flow Rate Calculator • Turnover Calculator • Minimum Filter Size Calculator • Total Dynamic Head (measured) Calculator
ControlMySpa
Remotely manage your hot tub's temperature, lighting, and schedules from your smartphone or tablet. Receive instant alerts for potential issues, ensuring peace of mind even when you're away.
- Remote temperature control
- Lighting management
- Schedule setup
- Push notification alerts
- Problem detection
Read full descriptionHide full description
The ControlMySpa app connects you to your hot tub from any smartphone or tablet. Control the temperature, lights, set up schedules and more. Receive instant push notification alerts when a potential problem occurs so you and your dealer know about it, even while you're away.
Screenshots
Verdict
The clearest difference is rating: ControlMySpa at 3.9 against HotTub&Pool's 3.5. ControlMySpa also leads on update cadence (every 5 weeks vs every 7 months) and ratings volume (589 vs 13). HotTub&Pool's advantage is review sentiment (24% vs 10%) and iOS requirement (8.0 vs 16.0). 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.
ControlMySpa holds the better App Store score, 3.9 against 3.5. That said, the two scores are not equally well evidenced: ControlMySpa has 589 ratings behind it against 13, so its average is the more settled of the two. Written reviews complicate that: 24% of HotTub&Pool's written reviews are positive against 10% of ControlMySpa's, so the app with the better star average is not the one people write more warmly about.
HotTub&Pool ships an update every 7 months, ControlMySpa every 5 weeks. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.
| Parameter | HotTub&Pool | ControlMySpa |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (13 ratings) | 3.9 (589 ratings) — better |
| Positive reviews | 23.8% of reviews — better | 10.3% of reviews |
| Number of ratings | 13 | 589 — better |
| Update frequency | Every 7 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 8 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Pixelwand Ltd | Balboa Water Group |
Customer experience
HotTub&Pool
ControlMySpa
Bugs and requests
HotTub&Pool
Not enough reviews yet to summarise bugs or requests.
ControlMySpa
Reported bugs
4 issues- Inconsistent temperature display
- Inability to save settings
- Login issues and lost credentials
- Crashes and freezes after updates
Requested features
4 requests- More granular temperature control
- Ability to control lights and jets
- Improved scheduling options
- Push notifications for status changes
In-app purchases
HotTub&Pool
No in-app purchases
ControlMySpa
No in-app purchases
