# Dive Diary vs Scuba Dive Signals

The clearest difference is rating: Scuba Dive Signals at 5.0 against Dive Diary's 4.0. Scuba Dive Signals also leads on review sentiment (100% vs 90%). Dive Diary's advantage is update cadence (every 2 months vs every 42 months) and ratings volume (19 vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Scuba Dive Signals holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Dive Diary has 19 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 90% of Dive Diary's written reviews are positive against 100% of Scuba Dive Signals's.

Dive Diary ships an update every 2 months, Scuba Dive Signals every 42 months. The most recent releases landed on September 18, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Dive Diary | Scuba Dive Signals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (19 ratings)](https://appshunter.io/ios/app/dive-diary/id732855199/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/scuba-dive-signals/id1483856571/reviews)** |
| Number of ratings | **19** | 3 |
| Positive reviews | 90.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 42 months |
| Monetization | Free | Free |
| Size | 25 MB | 3 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Goanmook Choi](https://appshunter.io/developer/732855202) | [Eric Hamiter](https://appshunter.io/developer/1482332471) |

## What reviewers say

### 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


### Scuba Dive Signals

[App page](https://appshunter.io/ios/app/scuba-dive-signals/id1483856571)

Access a comprehensive list of underwater hand signals for safe scuba diving communication. Includes a quiz feature to test your knowledge of signals recognized by major training agencies.

**Highlights:** List of recognized dive hand signals, Signals from PADI, NAUI, SSI, Quiz feature to test knowledge, Safety communication focus, Creative Commons licensed images

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dive Diary free?

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

### Is Scuba Dive Signals free?

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

### Which has better reviews, Dive Diary or Scuba Dive Signals?

Scuba Dive Signals is rated higher. Dive Diary averages 4.0 out of 5 from 19 ratings, while Scuba Dive Signals averages 5.0 from 3 ratings.

### Do Dive Diary or Scuba Dive Signals have ads?

Neither Dive Diary nor Scuba Dive Signals shows ads.

### Which is updated more often, Dive Diary or Scuba Dive Signals?

Dive Diary ships an update every 2 months, and Scuba Dive Signals every 42 months. Most recently, Dive Diary was updated on September 18, 2026 and Scuba Dive Signals on September 21, 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.*