# DeeperBlue.com vs Scuba Dive Signals

The clearest difference is update cadence: DeeperBlue.com at every 3 months against Scuba Dive Signals's every 42 months. DeeperBlue.com also leads on ratings volume (61 vs 3) and iOS requirement (11.0 vs 15.0). Scuba Dive Signals's advantage is rating (5.0 vs 4.8). On price, review sentiment, 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.

Scuba Dive Signals holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: DeeperBlue.com has 61 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

DeeperBlue.com ships an update every 3 months, Scuba Dive Signals every 42 months. The most recent releases landed on September 20, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | DeeperBlue.com | Scuba Dive Signals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (61 ratings)](https://appshunter.io/ios/app/deeperbluecom/id894987002/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/scuba-dive-signals/id1483856571/reviews)** |
| Number of ratings | **61** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 42 months |
| Monetization | Free | Free |
| Size | 34 MB | 3 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [DeeperBlue.com](https://appshunter.io/developer/1345475661) | [Eric Hamiter](https://appshunter.io/developer/1482332471) |

## What reviewers say

### DeeperBlue.com

[App page](https://appshunter.io/ios/app/deeperbluecom/id894987002)

Stay informed about freediving, scuba diving, ocean advocacy, and diving travel with daily news, in-depth articles, and unbiased reviews. Access ultimate guides, watch videos, and engage with a passionate community.

**Highlights:** Daily diving journalism, Live news notifications, In-depth feature articles, Ultimate diving guides, Video of the Week, Community comments and sharing, Searchable archives

**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 DeeperBlue.com free?

DeeperBlue.com 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, DeeperBlue.com or Scuba Dive Signals?

Scuba Dive Signals is rated higher. DeeperBlue.com averages 4.8 out of 5 from 61 ratings, while Scuba Dive Signals averages 5.0 from 3 ratings.

### Do DeeperBlue.com or Scuba Dive Signals have ads?

Neither DeeperBlue.com nor Scuba Dive Signals shows ads.

### Which is updated more often, DeeperBlue.com or Scuba Dive Signals?

DeeperBlue.com ships an update every 3 months, and Scuba Dive Signals every 42 months. Most recently, DeeperBlue.com was updated on September 20, 2026 and Scuba Dive Signals on October 8, 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.*