# Bullfrog Spas CloudControl 2™ vs Katalyst

The clearest difference is review sentiment: Katalyst at 81% against Bullfrog Spas CloudControl 2™'s 24%. Katalyst also leads on rating (4.6 vs 1.7) and update cadence (every 3 weeks vs every 2 months). Bullfrog Spas CloudControl 2™'s advantage is monetization model (free vs free with in-app purchases) and iOS requirement (11.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Katalyst holds the better App Store score, 4.6 against 1.7. That said, the two scores are not equally well evidenced: Katalyst has 58 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 24% of Bullfrog Spas CloudControl 2™'s written reviews are positive against 81% of Katalyst's.

Bullfrog Spas CloudControl 2™ ships an update every 2 months, Katalyst every 3 weeks. The most recent releases landed on September 8, 2026 and August 17, 2026 respectively.

## The numbers

| Metric | Bullfrog Spas CloudControl 2™ | Katalyst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (10 ratings)](https://appshunter.io/ios/app/bullfrog-spas-cloudcontrol-2/id1438114853/reviews) | **[4.6 (58 ratings)](https://appshunter.io/ios/app/katalyst/id1558163458/reviews)** |
| Number of ratings | 10 | **58** |
| Positive reviews | 23.8% of reviews | **80.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 43 MB | 126 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [LC Bullfrog International](https://appshunter.io/developer/597786167) | [Katalyst Interactive Inc.](https://appshunter.io/developer/1558163460) |

## What reviewers say

### Bullfrog Spas CloudControl 2™

[App page](https://appshunter.io/ios/app/bullfrog-spas-cloudcontrol-2/id1438114853)

Remotely monitor and control your spa's temperature and settings from any WiFi or cellular-enabled device. Ensure your hot tub is always ready for relaxation, whether you're home or away.

**Highlights:** Remote spa monitoring, Temperature adjustment, Setting adjustments, Secondary control for critical functions, WiFi and cellular connectivity, Smartphone, tablet, and web-enabled device compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### Katalyst

[App page](https://appshunter.io/ios/app/katalyst/id1558163458)

This app enhances a revolutionary workout system using Electro Muscle Stimulation (EMS) to engage all muscles simultaneously. It offers a full-body workout in just 20 minutes, with zero joint load. Access diverse workout programs and control intensity for personalized training.

**Highlights:** Electro Muscle Stimulation (EMS) training, Full-body engagement, 20-minute workouts, Zero joint load, Diverse workout library (strength, power, cardio, recovery), Adjustable impulse intensity, Offline workout access

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Bullfrog Spas CloudControl 2™ free?

Bullfrog Spas CloudControl 2™ is free to download, with no in-app purchases.

### Is Katalyst free?

Katalyst is free to download, with no in-app purchases.

### Which has better reviews, Bullfrog Spas CloudControl 2™ or Katalyst?

Katalyst is rated higher. Bullfrog Spas CloudControl 2™ averages 1.7 out of 5 from 10 ratings, while Katalyst averages 4.6 from 58 ratings.

### Do Bullfrog Spas CloudControl 2™ or Katalyst have ads?

Neither Bullfrog Spas CloudControl 2™ nor Katalyst shows ads.

### Which is updated more often, Bullfrog Spas CloudControl 2™ or Katalyst?

Bullfrog Spas CloudControl 2™ ships an update every 2 months, and Katalyst every 3 weeks. Most recently, Bullfrog Spas CloudControl 2™ was updated on September 8, 2026 and Katalyst on August 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*