# Mercury vs SpaceAIoT

The clearest difference is in-app purchases: SpaceAIoT at none against Mercury's 5. SpaceAIoT also leads on update cadence (every 2 weeks vs every 70 months) and iOS requirement (13 vs 26.0). On price, ads and device support there is nothing between them.

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

Mercury ships an update every 70 months, SpaceAIoT every 2 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Mercury | SpaceAIoT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (6 ratings)](https://appshunter.io/ios/app/mercury-temperature-converter/id1494415587/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 70 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 4 MB | 10 MB |
| Requires iOS | 26.0 | **13** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Samuel Herrera](https://appshunter.io/developer/962670797) | [YCM PRODUCTS COMPANY LIMITED](https://appshunter.io/developer/1747453790) |

## What reviewers say

### 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 |


### SpaceAIoT

[App page](https://appshunter.io/ios/app/spaceaiot/id6502932991)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mercury free?

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

### Is SpaceAIoT free?

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

### Do Mercury or SpaceAIoT have ads?

Neither Mercury nor SpaceAIoT shows ads.

### Which is updated more often, Mercury or SpaceAIoT?

Mercury ships an update every 70 months, and SpaceAIoT every 2 weeks. Most recently, Mercury was updated on November 3, 2026 and SpaceAIoT on November 4, 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.*