# LIGONG vs Reef Guard

The clearest difference is in-app purchases: LIGONG at none against Reef Guard's 2. Reef Guard's advantage is update cadence (fortnightly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Reef Guard sells 2 in-app purchases, starting at $1.99 per month. LIGONG asks for nothing beyond the download.

LIGONG ships an update every 4 months, Reef Guard fortnightly. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | LIGONG | Reef Guard |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Size | 26 MB | 40 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [宝婷 赵](https://appshunter.io/developer/1773550542) | [宇 郭](https://appshunter.io/developer/1851353253) |

## What reviewers say

### LIGONG

[App page](https://appshunter.io/ios/app/ligong/id6741791166)

**Features:** macOS Compatibility

**In-app purchases:** none


### Reef Guard

[App page](https://appshunter.io/ios/app/reef-guard/id6755100588)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reef Guard Pro Monthly | $1.99 | per month |
| Reef Guard Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is LIGONG free?

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

### Is Reef Guard free?

Reef Guard is free to download, with in-app purchases available.

### Do LIGONG or Reef Guard have ads?

Neither LIGONG nor Reef Guard shows ads.

### Which is updated more often, LIGONG or Reef Guard?

LIGONG ships an update every 4 months, and Reef Guard fortnightly. Most recently, LIGONG was updated on November 8, 2026 and Reef Guard on November 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.*