# ReefDiary vs ReefDrift

The clearest difference is ads: ReefDiary at none against ReefDrift's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. ReefDiary sells 3 in-app purchases, starting at $2.99 per 7 days and ReefDrift sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReefDiary ships an update every 4 weeks, ReefDrift every 2 weeks. The most recent releases landed on September 10, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | ReefDiary | ReefDrift |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Every 2 weeks** |
| Size | 9 MB | 16 MB |
| Requires iOS | **17.0** | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Petr Persianov](https://appshunter.io/developer/1883368529) | [Muge Akalin](https://appshunter.io/developer/1701314808) |

## What reviewers say

### ReefDiary

[App page](https://appshunter.io/ios/app/reefdiary-aquarium-log/id6762562058)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReefTrack Pro – Weekly | $2.99 | per 7 days |
| ReefTrack Pro – Monthly | $7.99 | per month |
| ReefTrack Pro – Yearly | $29.99 | per year |


### ReefDrift

[App page](https://appshunter.io/ios/app/reefdrift-reef-parameter-log/id6775145577)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReefDrift Pro Monthly | $3.99 | per month |
| ReefDrift Pro Yearly | $19.99 | per year |
| ReefDrift Pro Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is ReefDiary free?

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

### Is ReefDrift free?

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

### Do ReefDiary or ReefDrift have ads?

ReefDrift shows ads; ReefDiary does not.

### Which is updated more often, ReefDiary or ReefDrift?

ReefDiary ships an update every 4 weeks, and ReefDrift every 2 weeks. Most recently, ReefDiary was updated on September 10, 2026 and ReefDrift on September 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.*