# Quantum Messages vs Sky

The clearest difference is in-app purchases: Sky at none against Quantum Messages's 1. Sky also leads on iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Quantum Messages sells 1 one-off in-app purchase. Sky asks for nothing beyond the download.

## The numbers

| Metric | Quantum Messages | Sky |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 2 MB | 62 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [嘉胜 陈](https://appshunter.io/developer/1508884749) | [Coding Minds, Inc.](https://appshunter.io/developer/1480612283) |

## What reviewers say

### Quantum Messages

[App page](https://appshunter.io/ios/app/quantum-messages/id6747940707)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $19.99 | one-time |


### Sky

[App page](https://appshunter.io/ios/app/sky-aware/id6759438123)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quantum Messages free?

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

### Is Sky free?

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

### Do Quantum Messages or Sky have ads?

Neither Quantum Messages nor Sky shows ads.

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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.*