# SkyQI vs Sky Clock

The clearest difference is in-app purchases: SkyQI at none against Sky Clock's 3. SkyQI also leads on iOS requirement (15.0 vs 17.0). Sky Clock's advantage is update cadence (weekly vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Sky Clock sells 3 in-app purchases, starting at $6.99 per month. SkyQI asks for nothing beyond the download.

SkyQI ships an update every 6 weeks, Sky Clock weekly. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | SkyQI | Sky Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/sky-clock-star-map-and-aurora/id6799441003/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | — | Freemium |
| Size | 32 MB | 22 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bhuvan Kumar Gupta](https://appshunter.io/developer/1892689909) | [Eric Rosenbaum](https://appshunter.io/developer/1863501852) |

## What reviewers say

### SkyQI

[App page](https://appshunter.io/ios/app/skyqi-light-pollution/id6762080481)

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

**In-app purchases:** none


### Sky Clock

[App page](https://appshunter.io/ios/app/sky-clock-star-map-and-aurora/id6799441003)

Identify celestial objects and events visible from your location. Get real-time sky maps, ISS pass predictions, and forecasts for meteor showers and planetary alignments. Works offline without ads or accounts.

**Highlights:** Interactive star and planet map, ISS pass predictions, Meteor shower and conjunction forecasts, Offline functionality, Stargazing log, Customizable alerts

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sky Clock Plus, Monthly | $6.99 | per month |
| Sky Clock Plus, Yearly | $44.99 | per year |
| Plus Forever | $89.99 | one-time |


## Frequently asked questions

### Is SkyQI free?

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

### Is Sky Clock free?

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

### Do SkyQI or Sky Clock have ads?

Neither SkyQI nor Sky Clock shows ads.

### Which is updated more often, SkyQI or Sky Clock?

SkyQI ships an update every 6 weeks, and Sky Clock weekly. Most recently, SkyQI was updated on October 24, 2026 and Sky Clock on October 29, 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.*