# U.S. Inland Navigational Rules vs SailControl

The clearest difference is price: SailControl at Free against U.S. Inland Navigational Rules's $2.99. SailControl also leads on update cadence (every 5 months vs every 27 months). U.S. Inland Navigational Rules's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 17.5). On ads and device support there is nothing between them.

SailControl is free to download; U.S. Inland Navigational Rules costs $2.99 up front. SailControl sells 2 in-app purchases, starting at $2.99 per month. U.S. Inland Navigational Rules asks for nothing beyond the download.

U.S. Inland Navigational Rules ships an update every 27 months, SailControl every 5 months. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | U.S. Inland Navigational Rules | SailControl |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/us-inland-navigational-rules/id658906836/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 5 months** |
| Monetization | Paid | — |
| Size | 23 MB | 63 MB |
| Requires iOS | **13.0** | 17.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [The Other Hat](https://appshunter.io/developer/573973071) | [Defend Cyberspace](https://appshunter.io/developer/1835142407) |

## What reviewers say

### U.S. Inland Navigational Rules

[App page](https://appshunter.io/ios/app/us-inland-navigational-rules/id658906836)

This app provides comprehensive Inland Navigation Rules for U.S. inland waters and the Great Lakes. It features over 100 custom illustrations and captions for easy learning, along with bonus emergency procedures for boaters.

**Highlights:** Complete Inland Navigation Rules, 100+ explanatory illustrations, Bonus emergency procedures section, Reference, learning, and revision tool, Researched by nautical experts, Covers Steering & Sailing Rules, Lights & Shapes, Signals

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

**In-app purchases:** none


### SailControl

[App page](https://appshunter.io/ios/app/sailcontrol/id6751442794)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $14.99 | per year |


## Frequently asked questions

### Is U.S. Inland Navigational Rules free?

U.S. Inland Navigational Rules costs $2.99, with no in-app purchases.

### Is SailControl free?

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

### Do U.S. Inland Navigational Rules or SailControl have ads?

Neither U.S. Inland Navigational Rules nor SailControl shows ads.

### Which is updated more often, U.S. Inland Navigational Rules or SailControl?

U.S. Inland Navigational Rules ships an update every 27 months, and SailControl every 5 months. Most recently, U.S. Inland Navigational Rules was updated on November 1, 2026 and SailControl on October 25, 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.*