# COSMOS vs HKI

The clearest difference is ads: HKI at none against COSMOS's shown. COSMOS's advantage is iOS requirement (12.0 vs 15.1). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

COSMOS ships an update every 3 days, HKI every 2 days. The most recent releases landed on October 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | COSMOS | HKI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 days | **Every 2 days** |
| Size | 132 MB | 42 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NEWS AGENCY LIMITED](https://appshunter.io/developer/1691840665) | [Aircity Operating System (HK) Limited](https://appshunter.io/developer/1843832934) |

## What reviewers say

### COSMOS

[App page](https://appshunter.io/ios/app/cosmos/id6748901145)

**Features:** macOS Compatibility

**In-app purchases:** none


### HKI

[App page](https://appshunter.io/ios/app/hki/id6753649193)

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

**In-app purchases:** none


## Frequently asked questions

### Is COSMOS free?

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

### Is HKI free?

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

### Do COSMOS or HKI have ads?

COSMOS shows ads; HKI does not.

### Which is updated more often, COSMOS or HKI?

COSMOS ships an update every 3 days, and HKI every 2 days. Most recently, COSMOS was updated on October 5, 2026 and HKI on October 25, 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.*