# Simple Colregs vs Sailor's Deck

The clearest difference is in-app purchases: Simple Colregs at none against Sailor's Deck's 3. Sailor's Deck's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (15.1 vs 18.5). On price, ads and device support there is nothing between them.

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

Simple Colregs ships an update every 2 months, Sailor's Deck every 3 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Simple Colregs | 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 | Every 2 months | **Every 3 weeks** |
| Monetization | — | Paid |
| Size | 20 MB | 23 MB |
| Requires iOS | 18.5 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Angad C](https://appshunter.io/developer/1464302295) | [Vladimir Arefev](https://appshunter.io/developer/1888773460) |

## What reviewers say

### Simple Colregs

[App page](https://appshunter.io/ios/app/simple-colregs/id6748556558)

**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 Simple Colregs free?

Simple Colregs 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 Simple Colregs or Sailor's Deck have ads?

Neither Simple Colregs nor Sailor's Deck shows ads.

### Which is updated more often, Simple Colregs or Sailor's Deck?

Simple Colregs ships an update every 2 months, and Sailor's Deck every 3 weeks. Most recently, Simple Colregs was updated on October 30, 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.*