# Fahrenheit Thermometer Plus vs PoolCheck

The clearest difference is review sentiment: PoolCheck at 100% against Fahrenheit Thermometer Plus's 33%. PoolCheck also leads on rating (5.0 vs 4.3) and ads (none vs shown). Fahrenheit Thermometer Plus's advantage is in-app purchases (none vs 1) and ratings volume (269 vs 2). On price and device support there is nothing between them.

Both are free to download. PoolCheck sells 1 one-off in-app purchase. Fahrenheit Thermometer Plus asks for nothing beyond the download.

PoolCheck holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Fahrenheit Thermometer Plus has 269 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 33% of Fahrenheit Thermometer Plus's written reviews are positive against 100% of PoolCheck's.

Fahrenheit Thermometer Plus ships an update every 10 months, PoolCheck fortnightly. The most recent releases landed on November 10, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Fahrenheit Thermometer Plus | PoolCheck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (269 ratings)](https://appshunter.io/ios/app/fahrenheit-thermometer-plus/id561382275/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/poolcheck-strip-reader/id6807818685/reviews)** |
| Number of ratings | **269** | 2 |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Fortnightly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 11 MB | 3 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [Christopher Daniels](https://appshunter.io/developer/6807818687) |

## 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


### PoolCheck

[App page](https://appshunter.io/ios/app/poolcheck-strip-reader/id6807818685)

Easily test your pool or spa water by photographing your test strips. Get clear chemical dosing instructions, including product amounts and order, to maintain optimal water balance. This app offers a private, ad-free experience with optional in-app purchase to remove ads.

**Highlights:** Photograph test strips for automatic reading, Chemical dose calculator with step-by-step plans, Calculates gallons from pool dimensions, Tracks test history and local weather forecasts, Supports various pool types and finishes, Private by design, no account required

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Fahrenheit Thermometer Plus free?

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

### Is PoolCheck free?

PoolCheck is free to download, with in-app purchases available.

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

PoolCheck is rated higher. Fahrenheit Thermometer Plus averages 4.3 out of 5 from 269 ratings, while PoolCheck averages 5.0 from 2 ratings.

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

Fahrenheit Thermometer Plus shows ads; PoolCheck does not.

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

Fahrenheit Thermometer Plus ships an update every 10 months, and PoolCheck fortnightly. Most recently, Fahrenheit Thermometer Plus was updated on November 10, 2026 and PoolCheck on November 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*