# Reef Diary Aquarium Management vs Cora Mobile

The clearest difference is update cadence: Cora Mobile at every 6 days against Reef Diary Aquarium Management's monthly. Reef Diary Aquarium Management's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Reef Diary Aquarium Management sells 4 in-app purchases, starting at $2.99 per month and Cora Mobile sells 6 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Reef Diary Aquarium Management ships an update monthly, Cora Mobile every 6 days. The most recent releases landed on October 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Reef Diary Aquarium Management | Cora Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/reef-diary-aquarium-management/id6746352304/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | Freemium | — |
| Size | 58 MB | 113 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christian Buchholz](https://appshunter.io/developer/1816370032) | [Eyup Bay](https://appshunter.io/developer/1883725998) |

## What reviewers say

### Reef Diary Aquarium Management

[App page](https://appshunter.io/ios/app/reef-diary-aquarium-management/id6746352304)

Manage your reef or freshwater aquarium with this comprehensive tool. Track water parameters, schedule maintenance, and monitor your aquatic life and equipment. Works offline to keep your ecosystem healthy and thriving.

**Highlights:** Smart parameter tracking for reef and freshwater, Visual trend charts for water parameters, Multiple tank support, Equipment and livestock inventory, Maintenance task scheduler with reminders, Offline functionality

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reef Diary - Monthly | $2.99 | per month |
| Reef Diary - Yearly | $24.99 | per year |
| Enterprise Monthly Subscription | $89.99 | per month |
| ReefDiary Yearly Enterprise | $699.00 | per year |


### Cora Mobile

[App page](https://appshunter.io/ios/app/cora-mobile/id6760301981)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cora Essential | $9.99 | per month |
| Cora Advanced | $19.99 | per month |
| Cora Expert | $34.99 | per month |
| Cora Essential | $99.99 | per year |
| Cora Advanced | $199.99 | per year |
| Cora Expert | $349.99 | per year |


## Frequently asked questions

### Is Reef Diary Aquarium Management free?

Reef Diary Aquarium Management is free to download, with in-app purchases available.

### Is Cora Mobile free?

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

### Do Reef Diary Aquarium Management or Cora Mobile have ads?

Neither Reef Diary Aquarium Management nor Cora Mobile shows ads.

### Which is updated more often, Reef Diary Aquarium Management or Cora Mobile?

Reef Diary Aquarium Management ships an update monthly, and Cora Mobile every 6 days. Most recently, Reef Diary Aquarium Management was updated on October 4, 2026 and Cora Mobile on October 31, 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.*