# HKAStro vs 认识天文知识

The clearest difference is update cadence: HKAStro at every 10 months against 认识天文知识's every 27 months. 认识天文知识's advantage is iOS requirement (10.1 vs 13.0). On price, ads, 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.

HKAStro ships an update every 10 months, 认识天文知识 every 27 months. The most recent releases landed on October 23, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | HKAStro | 认识天文知识 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hkastro/id526273487/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 27 months |
| Monetization | Free | — |
| Size | 120 MB | 33 MB |
| Requires iOS | 13.0 | **10.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hong Kong Astronomical Society](https://appshunter.io/developer/526273530) | [运涛 余](https://appshunter.io/developer/977049266) |

## What reviewers say

### HKAStro

[App page](https://appshunter.io/ios/app/hkastro/id526273487)

This educational app delivers local astronomical news, event updates, and weather forecasts. It includes helpful tools like a polar scope and moon phase tracker for stargazing enthusiasts.

**Highlights:** Local astronomical news, Event information, Weather forecasts, Polar Scope tool, Moon Phase tracker, Flashlight feature

**Features:** macOS Compatibility

**In-app purchases:** none


### 认识天文知识

[App page](https://appshunter.io/ios/app/id698569503)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HKAStro free?

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

### Is 认识天文知识 free?

认识天文知识 is free to download, with no in-app purchases.

### Do HKAStro or 认识天文知识 have ads?

Neither HKAStro nor 认识天文知识 shows ads.

### Which is updated more often, HKAStro or 认识天文知识?

HKAStro ships an update every 10 months, and 认识天文知识 every 27 months. Most recently, HKAStro was updated on October 23, 2026 and 认识天文知识 on October 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.*