# Ship Shapes vs Sailor's Deck

The clearest difference is review sentiment: Sailor's Deck at 100% against Ship Shapes's 0%. Sailor's Deck also leads on price (Free vs $1.99) and rating (5.0 vs 2.0). Ship Shapes's advantage is in-app purchases (none vs 3) and iOS requirement (12.1 vs 15.1). On ratings volume, update cadence, ads and monetization model there is nothing between them.

Sailor's Deck is free to download; Ship Shapes costs $1.99 up front. Sailor's Deck sells 3 one-off in-app purchases. Ship Shapes asks for nothing beyond the download.

Sailor's Deck holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 0% of Ship Shapes's written reviews are positive against 100% of Sailor's Deck's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Ship Shapes | Sailor's Deck |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/ship-shapes/id1451703120/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sailors-deck-colregs/id6761303264/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Paid | Paid |
| Size | 10 MB | 23 MB |
| Requires iOS | **12.1** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Edmund Broadbent](https://appshunter.io/developer/1440789617) | [Vladimir Arefev](https://appshunter.io/developer/1888773460) |

## What reviewers say

### Ship Shapes

[App page](https://appshunter.io/ios/app/ship-shapes/id1451703120)

Learn to recognize and memorize the main day shapes used by boats and ships through an interactive matching game. Score points by correctly matching images to their descriptions. Achieve a score of 50 or more to demonstrate mastery.

**Highlights:** Match images to descriptions, Learn ship day shape signals, Score points for correct answers, Master recognition and memorization, Interactive learning experience

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

**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 Ship Shapes free?

Ship Shapes costs $1.99, with no in-app purchases.

### Is Sailor's Deck free?

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

### Which has better reviews, Ship Shapes or Sailor's Deck?

Sailor's Deck is rated higher. Ship Shapes averages 2.0 out of 5 from 1 ratings, while Sailor's Deck averages 5.0 from 1 ratings.

### Do Ship Shapes or Sailor's Deck have ads?

Neither Ship Shapes nor Sailor's Deck shows ads.

### Which is updated more often, Ship Shapes or Sailor's Deck?

Ship Shapes ships an update every 3 weeks, and Sailor's Deck every 3 weeks. Most recently, Ship Shapes was updated on November 2, 2026 and Sailor's Deck on November 5, 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.*