# Alert Diver vs Dive Diary

Alert Diver and Dive Diary both sit at 4.0 stars, but that hides the real split: 90% of Dive Diary's written reviews are positive against 25% of Alert Diver's. Dive Diary also leads on monetization model (free vs free with in-app purchases) and update cadence (every 2 months vs every 6 months). Alert Diver's advantage is iOS requirement (11.0 vs 13.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.0 for Alert Diver against 4.0 for Dive Diary. Both are backed by a comparable volume of ratings — 4 and 19 respectively. Written reviews are what separate them: 25% of Alert Diver's written reviews are positive against 90% of Dive Diary's.

Alert Diver ships an update every 6 months, Dive Diary every 2 months. The most recent releases landed on June 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Alert Diver | Dive Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/alert-diver/id480608662/reviews) | [4.0 (19 ratings)](https://appshunter.io/ios/app/dive-diary/id732855199/reviews) |
| Number of ratings | 4 | **19** |
| Positive reviews | 25.0% of reviews | **90.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 92 MB | 25 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Divers Alert Network](https://appshunter.io/developer/1482122935) | [Goanmook Choi](https://appshunter.io/developer/732855202) |

## What reviewers say

### Alert Diver

[App page](https://appshunter.io/ios/app/alert-diver/id480608662)

Explore dive industry insights, research, and safety information. Discover underwater photography, travel destinations, and marine environmental topics. This app provides valuable content for divers and enthusiasts.

**Highlights:** Dive industry research, Medical information, Dive safety guidelines, Underwater photography, Dive travel guides, Marine environmental topics

**Features:** macOS Compatibility

**In-app purchases:** none


### Dive Diary

[App page](https://appshunter.io/ios/app/dive-diary/id732855199)

This app serves as a digital logbook for scuba divers, allowing users to record their dives with a visually appealing, customizable interface. It supports unlimited photo and video attachments, cloud backup, and easy sharing of dive logs.

**Highlights:** Customizable logbook design, Unlimited photo/video attachments, Cloud backup and restore, Cross-device synchronization, Social media sharing, Import Suunto dive computer logs, Export logs to CSV

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Alert Diver free?

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

### Is Dive Diary free?

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

### Which has better reviews, Alert Diver or Dive Diary?

Alert Diver and Dive Diary are both rated 4.0 out of 5 on the App Store, from 4 and 19 ratings respectively.

### Do Alert Diver or Dive Diary have ads?

Neither Alert Diver nor Dive Diary shows ads.

### Which is updated more often, Alert Diver or Dive Diary?

Alert Diver ships an update every 6 months, and Dive Diary every 2 months. Most recently, Alert Diver was updated on June 9, 2026 and Dive Diary on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*