# Scuba Dive Signals vs CA FishMap

The clearest difference is price: Scuba Dive Signals at Free against CA FishMap's $9.99. Scuba Dive Signals also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.6). CA FishMap's advantage is update cadence (every 2 months vs every 42 months). On ads and in-app purchases there is nothing between them.

Scuba Dive Signals is free to download; CA FishMap costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scuba Dive Signals ships an update every 42 months, CA FishMap every 2 months. The most recent releases landed on September 21, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Scuba Dive Signals | CA FishMap |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/scuba-dive-signals/id1483856571/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 3 MB | 30 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eric Hamiter](https://appshunter.io/developer/1482332471) | [Mark Kinoshita](https://appshunter.io/developer/1275162578) |

## What reviewers say

### 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


### CA FishMap

[App page](https://appshunter.io/ios/app/ca-fishmap/id6502253889)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Scuba Dive Signals free?

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

### Is CA FishMap free?

CA FishMap costs $9.99, with no in-app purchases.

### Do Scuba Dive Signals or CA FishMap have ads?

Neither Scuba Dive Signals nor CA FishMap shows ads.

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

Scuba Dive Signals ships an update every 42 months, and CA FishMap every 2 months. Most recently, Scuba Dive Signals was updated on September 21, 2026 and CA FishMap on September 16, 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.*