# tempi.fi vs Comfort Sync® Thermostat

tempi.fi and Comfort Sync® Thermostat both sit at 4.7 stars, but that hides the real split: 93% of tempi.fi's written reviews are positive against 22% of Comfort Sync® Thermostat's. Comfort Sync® Thermostat's advantage is ratings volume (1.9K vs 22) and update cadence (every 3 months vs every 9 months). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.7 for tempi.fi against 4.7 for Comfort Sync® Thermostat. That said, the two scores are not equally well evidenced: Comfort Sync® Thermostat has 1.9K ratings behind it against 22, so its average is the more settled of the two. Written reviews are what separate them: 93% of tempi.fi's written reviews are positive against 22% of Comfort Sync® Thermostat's.

tempi.fi ships an update every 9 months, Comfort Sync® Thermostat every 3 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | tempi.fi | Comfort Sync® Thermostat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (22 ratings)](https://appshunter.io/ios/app/tempifi/id1482659014/reviews) | **[4.7 (1.9K ratings)](https://appshunter.io/ios/app/comfort-sync-thermostat/id1513559837/reviews)** |
| Number of ratings | 22 | **1.9K** |
| Positive reviews | **92.9% of reviews** | 21.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 22 MB | 116 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VITALNOMAD LLC](https://appshunter.io/developer/1482659013) | [Allied Air Enterprises inc.](https://appshunter.io/developer/618048457) |

## What reviewers say

### tempi.fi

[App page](https://appshunter.io/ios/app/tempifi/id1482659014)

This app connects to wireless sensors to continuously monitor temperature and humidity. Receive alerts for out-of-range conditions, store historical data, and export readings in CSV format. Ideal for various environments like refrigerators, nurseries, and greenhouses.

**Highlights:** Wireless sensor connection, Continuous temperature/humidity monitoring, Out-of-range alerts, Historical data storage, CSV data export, Automatic sensor setup

**Features:** macOS Compatibility

**In-app purchases:** none


### Comfort Sync® Thermostat

[App page](https://appshunter.io/ios/app/comfort-sync-thermostat/id1513559837)

Control your home's HVAC system remotely with this app, designed to work with the Comfort Sync A3 thermostat. It offers intelligent features like automatic temperature adjustments based on your location and air quality monitoring for allergy relief.

**Highlights:** Remote temperature adjustment, Thermostat schedule editing, Location-based energy saving (Away Sync™), True Temp™ for perceived comfort, Air quality and pollen monitoring (Allergy Sync™), Predictive system alerts

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Allows control of variable speed systems
- 🚀 Maintains set temperature well
- 🚀 Quickly heats when set temp is raised
- 🔒 10-year warranty

**What reviewers complain about**

- 🐛 Cumbersome and not intuitive interface
- 🐛 Constantly turning on and off, causing noise
- 🐛 App doesn't update properly
- 🐛 App randomly changes temperature settings
- 🐛 Significantly over-engineered, doesn't work well

**Reported bugs**

- App can't log in or sync with system
- Lack of reliable customer support

**Requested features**

- Show percentage of current fan speed
- Ability to set hourly temperature schedules
- Integration with Apple HomeKit
- More control over fan operation


## Frequently asked questions

### Is tempi.fi free?

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

### Is Comfort Sync® Thermostat free?

Comfort Sync® Thermostat is free to download, with no in-app purchases.

### Which has better reviews, tempi.fi or Comfort Sync® Thermostat?

Comfort Sync® Thermostat is rated higher. tempi.fi averages 4.7 out of 5 from 22 ratings, while Comfort Sync® Thermostat averages 4.7 from 1.9K ratings.

### Do tempi.fi or Comfort Sync® Thermostat have ads?

Neither tempi.fi nor Comfort Sync® Thermostat shows ads.

### Which is updated more often, tempi.fi or Comfort Sync® Thermostat?

tempi.fi ships an update every 9 months, and Comfort Sync® Thermostat every 3 months. Most recently, tempi.fi was updated on November 3, 2026 and Comfort Sync® Thermostat on November 3, 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.*