# Fahrenheit Thermometer Plus vs IRThermometer

The clearest difference is ads: IRThermometer at none against Fahrenheit Thermometer Plus's shown. IRThermometer also leads on iOS requirement (10.0 vs 12.0). On price, update cadence, 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.

Fahrenheit Thermometer Plus ships an update every 10 months, IRThermometer every 12 months. The most recent releases landed on August 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Fahrenheit Thermometer Plus | IRThermometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (269 ratings)](https://appshunter.io/ios/app/fahrenheit-thermometer-plus/id561382275/reviews)** | — |
| Number of ratings | **269** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 10 months** | Every 12 months |
| Monetization | Ad-supported | — |
| Size | 11 MB | 3 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [广权 黄](https://appshunter.io/developer/1330080046) |

## What reviewers say

### Fahrenheit Thermometer Plus

[App page](https://appshunter.io/ios/app/fahrenheit-thermometer-plus/id561382275)

This free digital thermometer app uses GPS to measure and display the ambient temperature in Fahrenheit. It includes a Fahrenheit to Celsius conversion calculator and a barometer function for compatible devices. It also shows sunrise and sunset times, offering a reference for outdoor activities.

**Highlights:** GPS ambient temperature measurement, Fahrenheit to Celsius conversion calculator, Barometer function (iPhone 6/Plus and later), Badge displays Fahrenheit temperature, Sunrise and sunset time display

**Features:** Vision Pro support

**In-app purchases:** none


### IRThermometer

[App page](https://appshunter.io/ios/app/irthermometer/id1474759799)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fahrenheit Thermometer Plus free?

Fahrenheit Thermometer Plus is free to download, with no in-app purchases.

### Is IRThermometer free?

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

### Do Fahrenheit Thermometer Plus or IRThermometer have ads?

Fahrenheit Thermometer Plus shows ads; IRThermometer does not.

### Which is updated more often, Fahrenheit Thermometer Plus or IRThermometer?

Fahrenheit Thermometer Plus ships an update every 10 months, and IRThermometer every 12 months. Most recently, Fahrenheit Thermometer Plus was updated on August 16, 2026 and IRThermometer on September 18, 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.*