# Reef Guard vs ReefKeep

The clearest difference is update cadence: ReefKeep at daily against Reef Guard's fortnightly. Reef Guard's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Reef Guard sells 2 in-app purchases, starting at $1.99 per month and ReefKeep sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Reef Guard ships an update fortnightly, ReefKeep daily. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Reef Guard | ReefKeep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Size | 40 MB | 2 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [宇 郭](https://appshunter.io/developer/1851353253) | [Enovira AB](https://appshunter.io/developer/1878624311) |

## What reviewers say

### 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 |


### ReefKeep

[App page](https://appshunter.io/ios/app/reefkeep/id6762442240)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReefKeep Pro - monthly | $4.99 | per month |
| ReefKeep Pro - Yearly | $29.99 | per year |
| ReefKeep Lifetime Subscription | $79.99 | one-time |


## Frequently asked questions

### Is Reef Guard free?

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

### Is ReefKeep free?

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

### Do Reef Guard or ReefKeep have ads?

Neither Reef Guard nor ReefKeep shows ads.

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

Reef Guard ships an update fortnightly, and ReefKeep daily. Most recently, Reef Guard was updated on October 25, 2026 and ReefKeep on October 24, 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.*