# iCelsius vs Fahrenheit Thermometer Plus

The clearest difference is ads: iCelsius at none against Fahrenheit Thermometer Plus's shown. iCelsius also leads on update cadence (every 2 months vs every 10 months) and monetization model (free vs ad-supported). On price, rating, review sentiment and ratings volume 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 — 4.2 for iCelsius against 4.3 for Fahrenheit Thermometer Plus. Both are backed by a comparable volume of ratings — 139 and 269 respectively. Written reviews are what separate them: 35% of iCelsius's written reviews are positive against 33% of Fahrenheit Thermometer Plus's.

iCelsius ships an update every 2 months, Fahrenheit Thermometer Plus every 10 months. The most recent releases landed on August 18, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | iCelsius | Fahrenheit Thermometer Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (139 ratings)](https://appshunter.io/ios/app/icelsius/id434212879/reviews) | **[4.3 (269 ratings)](https://appshunter.io/ios/app/fahrenheit-thermometer-plus/id561382275/reviews)** |
| Number of ratings | 139 | **269** |
| Positive reviews | **35.2% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | **Free** | Ad-supported |
| Size | 41 MB | 11 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aginova Sarl](https://appshunter.io/developer/434212882) | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) |

## What reviewers say

### iCelsius

[App page](https://appshunter.io/ios/app/icelsius/id434212879)

Transform your iPhone, iPad, or iPod touch into a digital thermometer with this app. It works with a separate hardware probe to measure temperatures of liquids and other substances, create graphs, and set alerts. Ideal for cooking, science education, and quality control.

**Highlights:** Live temperature display, Temperature graphing with pan/zoom, Configurable temperature alarms, Snapshot and continuous recording, Recipe presets for cooking, History of recorded readings

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Accurate temperature readings
- 👍 Handy for monitoring
- 👍 Good for remote monitoring
- 👍 Works well for specific uses (e.g., cigars, BBQ)
- 👍 Good UI and graphing (when it works)

**What reviewers complain about**

- 🐛 Frequent crashes
- 🐛 Connectivity issues (Wi-Fi, Bluetooth)
- 🐛 Unreliable remote sensing
- 🐛 Inconsistent readings/inaccurate
- 🐛 Hardware failures (probes dying)

**Reported bugs**

- App crashes on startup
- App crashes when tapping graphs
- Temperature readings are incorrect/flashing
- Live view display is messed up
- App crashes when phone locks or switches apps

**Requested features**

- Fix crashing issues
- Improve Wi-Fi and Bluetooth connectivity
- Ensure compatibility with newer iOS versions
- Improve remote monitoring reliability
- Fix data loss when switching apps


### 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


## Frequently asked questions

### Is iCelsius free?

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

### Is Fahrenheit Thermometer Plus free?

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

### Which has better reviews, iCelsius or Fahrenheit Thermometer Plus?

Fahrenheit Thermometer Plus is rated higher. iCelsius averages 4.2 out of 5 from 139 ratings, while Fahrenheit Thermometer Plus averages 4.3 from 269 ratings.

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

Fahrenheit Thermometer Plus shows ads; iCelsius does not.

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

iCelsius ships an update every 2 months, and Fahrenheit Thermometer Plus every 10 months. Most recently, iCelsius was updated on August 18, 2026 and Fahrenheit Thermometer Plus on August 16, 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.*