# Reef Guard vs VOLDA

The clearest difference is in-app purchases: VOLDA at none against Reef Guard's 2. On price, update cadence, ads 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. VOLDA asks for nothing beyond the download.

Reef Guard ships an update fortnightly, VOLDA every 2 weeks. The most recent releases landed on October 1, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Reef Guard | VOLDA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Size | 40 MB | 34 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [宇 郭](https://appshunter.io/developer/1851353253) | [颖卓 赵](https://appshunter.io/developer/1865325974) |

## 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 |


### VOLDA

[App page](https://appshunter.io/ios/app/volda/id6758033773)

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

**In-app purchases:** none


## Frequently asked questions

### Is Reef Guard free?

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

### Is VOLDA free?

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

### Do Reef Guard or VOLDA have ads?

Neither Reef Guard nor VOLDA shows ads.

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

Reef Guard ships an update fortnightly, and VOLDA every 2 weeks. Most recently, Reef Guard was updated on October 1, 2026 and VOLDA on October 17, 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.*