# Degrees Calc vs Mercury

The clearest difference is rating: Degrees Calc at 5.0 against Mercury's 4.0. Degrees Calc also leads on in-app purchases (none vs 5) and update cadence (monthly vs every 70 months). Mercury's advantage is ads (none vs shown) and ratings volume (6 vs 2). On price and device support there is nothing between them.

Both are free to download. Mercury sells 5 one-off in-app purchases. Degrees Calc asks for nothing beyond the download.

Degrees Calc holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 6 respectively.

Degrees Calc ships an update monthly, Mercury every 70 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Degrees Calc | Mercury |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/degrees-calc/id1440395802/reviews)** | [4.0 (6 ratings)](https://appshunter.io/ios/app/mercury-temperature-converter/id1494415587/reviews) |
| Number of ratings | 2 | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 70 months |
| Monetization | Ad-supported | **Free** |
| Size | 15 MB | 4 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Enes Akkus](https://appshunter.io/developer/1416782412) | [Samuel Herrera](https://appshunter.io/developer/962670797) |

## What reviewers say

### Degrees Calc

[App page](https://appshunter.io/ios/app/degrees-calc/id1440395802)

Easily convert temperatures between various scales using formulas and a quick slide converter. Verify your conversions by entering values directly into the formula table.

**Highlights:** Temperature unit conversion formulas, Convert to and from Celsius, Formula table for verification, Slide converter for quick conversions, Supports multiple temperature scales

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

**In-app purchases:** none


### Mercury

[App page](https://appshunter.io/ios/app/mercury-temperature-converter/id1494415587)

Easily convert temperatures between Celsius, Fahrenheit, and Kelvin with an elegant and intuitive interface. Features dynamic background color changes based on temperature and supports decimal conversions.

**Highlights:** Celsius, Fahrenheit, Kelvin conversion, Interactive temperature scrolling, Dynamic background color, Reset to zero function, Decimal temperature support

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |
| Massive Tip | $9.99 | one-time |


## Frequently asked questions

### Is Degrees Calc free?

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

### Is Mercury free?

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

### Which has better reviews, Degrees Calc or Mercury?

Degrees Calc is rated higher. Degrees Calc averages 5.0 out of 5 from 2 ratings, while Mercury averages 4.0 from 6 ratings.

### Do Degrees Calc or Mercury have ads?

Degrees Calc shows ads; Mercury does not.

### Which is updated more often, Degrees Calc or Mercury?

Degrees Calc ships an update monthly, and Mercury every 70 months. Most recently, Degrees Calc was updated on November 2, 2026 and Mercury on November 3, 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.*