# Deep Tools vs Scuba Dive Signals

The clearest difference is review sentiment: Scuba Dive Signals at 100% against Deep Tools's 50%. Scuba Dive Signals also leads on in-app purchases (none vs 3) and rating (5.0 vs 4.6). Deep Tools's advantage is update cadence (every 2 months vs every 42 months) and ratings volume (93 vs 3). On price, ads and device support there is nothing between them.

Both are free to download. Deep Tools sells 3 in-app purchases, starting at $7.99 per month. Scuba Dive Signals asks for nothing beyond the download.

Scuba Dive Signals holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Deep Tools has 93 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of Deep Tools's written reviews are positive against 100% of Scuba Dive Signals's.

Deep Tools ships an update every 2 months, Scuba Dive Signals every 42 months. The most recent releases landed on November 13, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Deep Tools | Scuba Dive Signals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (93 ratings)](https://appshunter.io/ios/app/deep-tools/id1476093876/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/scuba-dive-signals/id1483856571/reviews)** |
| Number of ratings | **93** | 3 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 42 months |
| Monetization | Freemium | **Free** |
| Size | 13 MB | 3 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Deep Blue d.o.o.](https://appshunter.io/developer/1476093875) | [Eric Hamiter](https://appshunter.io/developer/1482332471) |

## What reviewers say

### Deep Tools

[App page](https://appshunter.io/ios/app/deep-tools/id1476093876)

This app is a comprehensive tool for divers, offering dive planning, logging, and gas blending. It supports recreational, technical, and rebreather diving with advanced decompression planning and dive computer integration. Plan complex dives, log your adventures, and mix gases with precision.

**Highlights:** Decompression dive planning (Bühlmann ZH-L16), Dive log with Shearwater import, Nitrox and Trimix gas blending, Multiple dive calculators, Metric and imperial unit support, Multi-level and repetitive dive planning

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription Monthly | $7.99 | per month |
| Subscription Yearly | $22.99 | per year |
| Lifetime Subscription | $49.99 | one-time |


### 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 Deep Tools free?

Deep Tools is free to download, with in-app purchases available.

### Is Scuba Dive Signals free?

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

### Which has better reviews, Deep Tools or Scuba Dive Signals?

Scuba Dive Signals is rated higher. Deep Tools averages 4.6 out of 5 from 93 ratings, while Scuba Dive Signals averages 5.0 from 3 ratings.

### Do Deep Tools or Scuba Dive Signals have ads?

Neither Deep Tools nor Scuba Dive Signals shows ads.

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

Deep Tools ships an update every 2 months, and Scuba Dive Signals every 42 months. Most recently, Deep Tools was updated on November 13, 2026 and Scuba Dive Signals on November 3, 2026.

---

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