# Celsius Thermometer Plus vs Open/Shut

The clearest difference is in-app purchases: Open/Shut at none against Celsius Thermometer Plus's 1. Open/Shut also leads on ads (none vs shown) and update cadence (daily vs every 7 months). Celsius Thermometer Plus's advantage is iOS requirement (13 vs 16.4). On price and device support there is nothing between them.

Both are free to download. Celsius Thermometer Plus sells 1 one-off in-app purchase. Open/Shut asks for nothing beyond the download.

Celsius Thermometer Plus ships an update every 7 months, Open/Shut daily. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Celsius Thermometer Plus | Open/Shut |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (54 ratings)](https://appshunter.io/ios/app/celsius-thermometer-plus/id537067563/reviews)** | — |
| Number of ratings | **54** | — |
| Positive reviews | 38.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Daily** |
| Monetization | Ad-supported | — |
| Size | 11 MB | 65 MB |
| Requires iOS | **13** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [Berenger.dev](https://appshunter.io/developer/1697103676) |

## What reviewers say

### Celsius Thermometer Plus

[App page](https://appshunter.io/ios/app/celsius-thermometer-plus/id537067563)

This app measures ambient temperature using GPS and displays it in Celsius, with a converter to Fahrenheit. It also includes a barometer and sunrise/sunset times. Useful for checking outdoor conditions and planning outfits.

**Highlights:** Ambient temperature measurement via GPS, Celsius to Fahrenheit conversion calculator, Barometric pressure sensor function, Sunrise and sunset time display, Temperature badge indicator

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Open/Shut

[App page](https://appshunter.io/ios/app/openshut/id6795116448)

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

**In-app purchases:** none


## Frequently asked questions

### Is Celsius Thermometer Plus free?

Celsius Thermometer Plus is free to download, with in-app purchases available.

### Is Open/Shut free?

Open/Shut is free to download, with no in-app purchases.

### Do Celsius Thermometer Plus or Open/Shut have ads?

Celsius Thermometer Plus shows ads; Open/Shut does not.

### Which is updated more often, Celsius Thermometer Plus or Open/Shut?

Celsius Thermometer Plus ships an update every 7 months, and Open/Shut daily. Most recently, Celsius Thermometer Plus was updated on October 14, 2026 and Open/Shut on October 10, 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.*