# METIS 4 vs Temperature Checker ™

The clearest difference is in-app purchases: METIS 4 at none against Temperature Checker ™'s 5. METIS 4 also leads on ads (none vs shown) and iOS requirement (12.0 vs 16.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Temperature Checker ™ sells 5 in-app purchases, starting at $0.99 per 7 days. METIS 4 asks for nothing beyond the download.

METIS 4 ships an update every 26 months, Temperature Checker ™ every 16 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | METIS 4 | Temperature Checker ™ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (6 ratings)](https://appshunter.io/ios/app/temperature-checker/id6737435696/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 26 months | **Every 16 months** |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 16 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CROSS Zlin, a.s.](https://appshunter.io/developer/1068448316) | [Andy Sutanto](https://appshunter.io/developer/1659282966) |

## What reviewers say

### METIS 4

[App page](https://appshunter.io/ios/app/metis-4/id1068448317)

**Features:** macOS Compatibility

**In-app purchases:** none


### Temperature Checker ™

[App page](https://appshunter.io/ios/app/temperature-checker/id6737435696)

Get real-time temperature updates and accurate forecasts for your current or any selected location worldwide. Plan your day or trips with detailed weather predictions and a user-friendly interface.

**Highlights:** Real-time temperature updates, Detailed daily forecasts, Automatic location detection, Global location search, User-friendly interface

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thermometer Pro - 1W | $0.99 | per 7 days |
| Thermometer Pro - 1M | $1.99 | per month |
| Thermometer Pro - 1M Intro | $1.99 | per month |
| Thermometer Pro - 1Y | $9.99 | per year |
| Thermometer Pro | $19.99 | one-time |


## Frequently asked questions

### Is METIS 4 free?

METIS 4 is free to download, with no in-app purchases.

### Is Temperature Checker ™ free?

Temperature Checker ™ is free to download, with in-app purchases available.

### Do METIS 4 or Temperature Checker ™ have ads?

Temperature Checker ™ shows ads; METIS 4 does not.

### Which is updated more often, METIS 4 or Temperature Checker ™?

METIS 4 ships an update every 26 months, and Temperature Checker ™ every 16 months. Most recently, METIS 4 was updated on November 2, 2026 and Temperature Checker ™ on October 30, 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.*