# SmartTub® vs Massimo EV Owner

The clearest difference is update cadence: SmartTub® at fortnightly against Massimo EV Owner's every 2 months. Massimo EV Owner's advantage is iOS requirement (12.0 vs 15.1). 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.

SmartTub® ships an update fortnightly, Massimo EV Owner every 2 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | SmartTub® | Massimo EV Owner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (320 ratings)](https://appshunter.io/ios/app/smarttub/id1318260634/reviews)** | — |
| Number of ratings | **320** | — |
| Positive reviews | 23.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 97 MB | 19 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Jacuzzi Brands Corp.](https://appshunter.io/developer/967204652) | [Massimo Motor Sports, LLC](https://appshunter.io/developer/1543844110) |

## What reviewers say

### SmartTub®

[App page](https://appshunter.io/ios/app/smarttub/id1318260634)

This app acts as a personal hot tub assistant, providing tailored tips, how-to videos, and information based on your usage. It allows remote control of settings, energy usage estimates, and notifications for maintenance or power outages, ensuring you're always informed about your hot tub's status.

**Highlights:** Personalized hot tub tips and how-to videos, Remote adjustment of temperature and energy efficiency, Energy usage estimates, Power outage notifications, Dealer alerts for maintenance, Remote connection to dealer service

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Convenient remote control
- 🔒 Alerts for power outages
- 👍 Easy to use
- 👍 Useful monitoring features

**What reviewers complain about**

- 🐛 Frequent connectivity issues
- 🐛 Temperature settings not reliable
- 🐛 Buggy and unstable
- 💰 Expensive annual subscription
- 🤔 Lack of WiFi option

**Reported bugs**

- App frequently logs out users
- Inability to register warranty
- Inconsistent temperature readings
- Unreliable connection to spa

**Requested features**

- Ability to remotely turn off spa
- Customizable heating and filtering schedules
- Chemical tracking and maintenance reminders
- Improved Apple Watch integration
- Better temperature and setting controls


### Massimo EV Owner

[App page](https://appshunter.io/ios/app/massimo-ev-owner/id6463576704)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SmartTub® free?

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

### Is Massimo EV Owner free?

Massimo EV Owner is free to download, with no in-app purchases.

### Do SmartTub® or Massimo EV Owner have ads?

Neither SmartTub® nor Massimo EV Owner shows ads.

### Which is updated more often, SmartTub® or Massimo EV Owner?

SmartTub® ships an update fortnightly, and Massimo EV Owner every 2 months. Most recently, SmartTub® was updated on November 3, 2026 and Massimo EV Owner on October 27, 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.*