# 地灾智防 vs AYX

The clearest difference is iOS requirement: 地灾智防 at 9.0 against AYX's 15. On price, update cadence, ads and in-app purchases there is nothing between them.

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

地灾智防 ships an update every 11 days, AYX fortnightly. The most recent releases landed on May 19, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 地灾智防 | AYX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Fortnightly |
| Size | 29 MB | 19 MB |
| Requires iOS | **9.0** | 15 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zhejiang Provincial Institute of Geological Environmental Monitoring](https://appshunter.io/developer/1240028704) | [标 何](https://appshunter.io/developer/865933036) |

## What reviewers say

### 地灾智防

[App page](https://appshunter.io/ios/app/id1240028705)

**Features:** macOS Compatibility

**In-app purchases:** none


### AYX

[App page](https://appshunter.io/ios/app/ayx/id1439793580)

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

**In-app purchases:** none


## Frequently asked questions

### Is 地灾智防 free?

地灾智防 is free to download, with no in-app purchases.

### Is AYX free?

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

### Do 地灾智防 or AYX have ads?

Neither 地灾智防 nor AYX shows ads.

### Which is updated more often, 地灾智防 or AYX?

地灾智防 ships an update every 11 days, and AYX fortnightly. Most recently, 地灾智防 was updated on May 19, 2026 and AYX on September 9, 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.*