# Tests de Buceo vs Sailor's Deck

The clearest difference is in-app purchases: Tests de Buceo at none against Sailor's Deck's 3. Tests de Buceo also leads on update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sailor's Deck sells 3 one-off in-app purchases. Tests de Buceo asks for nothing beyond the download.

Tests de Buceo ships an update weekly, Sailor's Deck every 3 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Tests de Buceo | Sailor's Deck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sailors-deck-colregs/id6761303264/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | — | Paid |
| Size | 30 MB | 23 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alberto Segovia](https://appshunter.io/developer/1724272655) | [Vladimir Arefev](https://appshunter.io/developer/1888773460) |

## What reviewers say

### Tests de Buceo

[App page](https://appshunter.io/ios/app/tests-de-buceo-open-waters/id6680154796)

**In-app purchases:** none


### Sailor's Deck

[App page](https://appshunter.io/ios/app/sailors-deck-colregs/id6761303264)

Master navigation lights and day shapes for skipper exams with this flashcard app. It uses spaced repetition to build lasting visual memory, tracks your progress, and resurfaces difficult configurations until they stick. Study offline with no ads or subscriptions.

**Highlights:** Spaced repetition learning, Four-layer progression of study, Confusion pair training, Offline functionality, Progress tracking and session summaries, Association-specific terminology, Daily streak motivator

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Buy a Coffee | $2.99 | one-time |
| Generous Tip | $3.99 | one-time |


## Frequently asked questions

### Is Tests de Buceo free?

Tests de Buceo is free to download, with no in-app purchases.

### Is Sailor's Deck free?

Sailor's Deck is free to download, with in-app purchases available.

### Do Tests de Buceo or Sailor's Deck have ads?

Neither Tests de Buceo nor Sailor's Deck shows ads.

### Which is updated more often, Tests de Buceo or Sailor's Deck?

Tests de Buceo ships an update weekly, and Sailor's Deck every 3 weeks. Most recently, Tests de Buceo was updated on October 30, 2026 and Sailor's Deck on October 28, 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.*