# Mysa vs VoltSafe Winter

The clearest difference is rating: Mysa at 3.8 against VoltSafe Winter's 2.7. Mysa also leads on ratings volume (574 vs 3). VoltSafe Winter's advantage is monetization model (free vs free with in-app purchases) and update cadence (every 9 days vs every 4 weeks). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Mysa holds the better App Store score, 3.8 against 2.7. That said, the two scores are not equally well evidenced: Mysa has 574 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 30% of Mysa's written reviews are positive against 35% of VoltSafe Winter's, so the app with the better star average is not the one people write more warmly about.

Mysa ships an update every 4 weeks, VoltSafe Winter every 9 days. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Mysa | VoltSafe Winter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (574 ratings)](https://appshunter.io/ios/app/mysa/id1250453565/reviews)** | [2.7 (3 ratings)](https://appshunter.io/ios/app/voltsafe-winter/id1497643289/reviews) |
| Number of ratings | **574** | 3 |
| Positive reviews | 30.0% of reviews | **35.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 58 MB | 29 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Empowered Homes Inc.](https://appshunter.io/developer/1250453564) | [VoltSafe](https://appshunter.io/developer/1497643288) |

## What reviewers say

### Mysa

[App page](https://appshunter.io/ios/app/mysa/id1250453565)

Control your home's heating and cooling remotely, set schedules, and monitor energy usage to save money and energy. Integrates with smart home platforms for seamless control.

**Highlights:** Remote access from anywhere, Customizable heating/cooling schedules, Geofencing for occupancy detection, Energy usage monitoring, Smart home platform integration, Shared access control, Vacation mode

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Great product
- 🚀 Excellent thermostats
- 🚀 Allows more metrics than Nest
- 🚀 Excellent HomeKit integration
- 👍 Easy to use

**What reviewers complain about**

- 🐛 Buggy app
- 🐛 Crashes frequently
- 🐛 Unreliable connectivity
- 🐛 Inconsistent user experience
- 🔋 Drains battery

**Reported bugs**

- App crashes when changing schedules
- Thermostat settings not syncing properly
- Geofencing not working as expected
- Incompatibility with newer iOS versions
- Inability to add new devices

**Requested features**

- Dark mode option
- Brightness control scheduling
- Improved HomeKit integration
- Ability to disable display
- Geofencing improvements


### VoltSafe Winter

[App page](https://appshunter.io/ios/app/voltsafe-winter/id1497643289)

Automate your block heater with custom on/off schedules. Save time, energy, and money by setting up to 15 one-time or recurring schedules per device. Manually control your heater for added flexibility.

**Highlights:** Set up to 15 schedules, One-time and recurring schedules, Automate on/off times, Manual ON/OFF control, Save time, energy, and money

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mysa free?

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

### Is VoltSafe Winter free?

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

### Which has better reviews, Mysa or VoltSafe Winter?

Mysa is rated higher. Mysa averages 3.8 out of 5 from 574 ratings, while VoltSafe Winter averages 2.7 from 3 ratings.

### Do Mysa or VoltSafe Winter have ads?

Neither Mysa nor VoltSafe Winter shows ads.

### Which is updated more often, Mysa or VoltSafe Winter?

Mysa ships an update every 4 weeks, and VoltSafe Winter every 9 days. Most recently, Mysa was updated on October 16, 2026 and VoltSafe Winter on October 7, 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.*