# Pocket Marine vs Smart Reef

The clearest difference is review sentiment: Pocket Marine at 79% against Smart Reef's 4%. Pocket Marine also leads on rating (4.8 vs 1.5) and in-app purchases (none vs 11). Smart Reef's advantage is price (Free vs $3.99). On ads, device support and iOS requirement there is nothing between them.

Smart Reef is free to download; Pocket Marine costs $3.99 up front. Smart Reef sells 8 one-off in-app purchases. Pocket Marine asks for nothing beyond the download.

Pocket Marine holds the better App Store score, 4.8 against 1.5. That said, the two scores are not equally well evidenced: Pocket Marine has 597 ratings behind it against 23, so its average is the more settled of the two. Written reviews point the same way: 79% of Pocket Marine's written reviews are positive against 4% of Smart Reef's.

Pocket Marine ships an update fortnightly, Smart Reef every 3 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Pocket Marine | Smart Reef |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.8 (597 ratings)](https://appshunter.io/ios/app/pocket-marine/id999538938/reviews)** | [1.5 (23 ratings)](https://appshunter.io/ios/app/smart-reef/id1480355166/reviews) |
| Number of ratings | **597** | 23 |
| Positive reviews | **78.8% of reviews** | 3.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 213 MB | 4 MB |
| Requires iOS | **14.0** | 14.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Liam Salmons](https://appshunter.io/developer/999538937) | [Reef Factory sp. z o.o.](https://appshunter.io/developer/1367901113) |

## What reviewers say

### Pocket Marine

[App page](https://appshunter.io/ios/app/pocket-marine/id999538938)

Manage all your aquarium data in one place. Track water parameters, inhabitants, dosing, and maintenance with detailed logs and reminders. Access an extensive library of marine species to make informed decisions about new additions.

**Highlights:** Marine species encyclopedia (800+), Water parameter testing journal, Inhabitant and dosing logs, Maintenance and water change journals, Species compatibility guide, Useful calculators, Customizable reminders

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

**In-app purchases:** none

**What reviewers like**

- 👍 Helpful for tracking parameters
- 🚀 Fantastic data base
- 👍 Well designed app
- 👍 Comprehensive features
- 👍 Useful for new marine aquarium keepers

**What reviewers complain about**

- 🐛 Crashes when trying to set up aquarium
- 🐛 Deletes test results
- 🐛 Buggy and unstable
- 🐛 Spelling mistakes
- 🐛 Unable to change default parameters

**Reported bugs**

- Crashes when trying to edit targets/ranges
- Endless scroll to select values
- Inconsistent behavior when switching between Celsius and Fahrenheit
- Crashes when accessing certain sections like soft corals

**Requested features**

- Ability to sync data across devices
- Customizable home screen
- Tracking for spending on tank supplies
- Ability to set default parameters
- Graphs showing multiple parameters together


### Smart Reef

[App page](https://appshunter.io/ios/app/smart-reef/id1480355166)

Manage your marine aquarium with this app. It provides device management, alerts for issues, and detailed historical data. A central dashboard offers a clear overview of your aquarium's status and device operations.

**Highlights:** Device management, Aquarium alerts, Measurement history, Operational status dashboard, Planned job journal, Preset sharing

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Warranty 3 years | $12.99 | one-time |
| Warranty 3 years | $17.99 | one-time |
| Warranty 3 years | $19.99 | one-time |
| Warranty 3 years | $24.99 | one-time |
| Warranty 3 years | $29.99 | one-time |
| Warranty 3 years | $34.99 | one-time |
| Warranty 3 years | $39.99 | one-time |
| Warranty 3 years | $49.99 | one-time |


## Frequently asked questions

### Is Pocket Marine free?

Pocket Marine costs $3.99, with no in-app purchases.

### Is Smart Reef free?

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

### Which has better reviews, Pocket Marine or Smart Reef?

Pocket Marine is rated higher. Pocket Marine averages 4.8 out of 5 from 597 ratings, while Smart Reef averages 1.5 from 23 ratings.

### Do Pocket Marine or Smart Reef have ads?

Neither Pocket Marine nor Smart Reef shows ads.

### Which is updated more often, Pocket Marine or Smart Reef?

Pocket Marine ships an update fortnightly, and Smart Reef every 3 months. Most recently, Pocket Marine was updated on October 29, 2026 and Smart Reef 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.*