U.S. Inland Navigational Rules vs SailControl
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
U.S. Inland Navigational Rules
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.
- 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
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Essential Information for All Boat Users. Now includes Search function, Quick Get Location (your current latitude and longitude) with save and export, and Text Size/Reading mode. Complete Inland Navigation Rules for all U.S. inland waters and the Great Lakes. With 100+ specially produced explanatory illustrations and captions. For all boaters. Plus FREE bonus emergency procedures section. ************ FEATURES and BENEFITS ******************* - For reference, learning & revision - Over 100 custom made graphics for quick reference and easy learning - Researched and produced by nautical and marine experts for accuracy - Positively evaluated by professionals for reliability The complete Inland Navigation Rules for the United States including Parts A, B, C, D and E, plus Annexes, Interpretative Rules and other associated Navigation Regulations are all included in this app. See details below. A bonus illustrated section includes emergency procedures for boaters to follow when in difficulty. Anyone who is responsible for a vessel, from the smallest dinghy to an ocean going freighter, must be able to recognize other vessels around them by day or night, whatever the visibility. They need to be able to quickly interpret what other vessels are doing, who has right of way and what action they should take to prevent a possible collision. This is not always easy, especially along crowded rivers, narrow channels, in harbors or in poor visibility. NAVIGATION RULES INLAND includes the fully illustrated Rules of the Road - great for quick reference and easy learning. • Steering & Sailing Rules [ILLUSTRATED] • Lights & Shapes [ILLUSTRATED] • Sound & Light Signals [ILLUSTRATED] NAVIGATION RULES INLAND also includes the complete detailed rules as follows: * Exemptions * Annex I - Positioning and Technical Details of Lights and Shapes * Annex II - Additional Signals for Fishing Vessels Fishing in Close Proximity * Annex III - Technical Details of Sound Appliances * Annex IV - Distress Signals [ILLUSTRATED] * Annex V - Pilot Signals * Interpretive Rules * COLREGS DEMARCATION LINES - detailed information of the lines of jurisdiction that separate the Inland and International Rules, as indicated on National Ocean Service navigation charts * Alternative Compliance * Waters upon which Inland Rules apply * Vessel Bridge to Bridge Radiotelephone Regulations * Vessel Traffic Services (VTS) Call Signs, Designated Frequencies, and Monitoring Areas * Penalty Provisions ************* FREE Bonus Content from "Safe Skipper" ***************************** Safety Afloat Tips & Advice on Emergency Procedures for all Sailors and Leisure Boaters. * Safety information & practical tips * Specially created custom graphics: illustrations, photos & diagrams * Advice on emergency procedures * Stay safe and prevent accidents happening * Written & illustrated by a qualified & experienced yachtsman Includes information on: * Abandoning ship * Dismasting * Distress signals * Engine failure * Fire fighting * Getting a tow * Helicopter rescue * Holed hull * MAYDAY procedures * Medical emergency * SAR signals ***************************************** Customer feedback for Safe Skipper: "Highly recommend this App, get it on your Phone or Tablet today" "This app is full of really useful info for anyone going to sea (or inland waterways...). It's presented really well, and has some good graphics. Can't believe just how much they've packed in. Recommended." "A well written and detailed app for yachts & inland craft also quite useful for ocean going vessels - well done." ***************************************** Special thanks to Captain Richard J. Rodriguez, U.S. Coast Guard licensed Master and Director of Operations at Zenith Maritime for his helpful advice and recommendations.
SailControl
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SailControl transforms your device into a professional-grade navigation and performance assistant. Seamlessly connecting with your vessel’s AIS and NMEA chartplotter, it brings your full instrument panel to your iPhone and Apple Watch. By combining real-time AIS target tracking, wind metrics, speed insights, GPS positioning, and onboard sensor data, SailControl gives you an all-in-one situational awareness solution - right in your pocket. Whether you’re a competitive sailing athlete striving for performance gains, a recreational sailor seeking safety and confidence offshore, or a professional mariner managing critical navigation tasks, SailControl adapts to your needs: - Sailing Races: Gain a competitive edge by tracking rivals in real time, analyzing their speed and course, and adjusting your sails or maneuvers with precision to outpace the fleet. - Recreational Sailors: Sail with confidence using clear visualizations of vessel traffic, wind conditions, and speed insights for safer, more enjoyable cruising. - Mariners & Captains: Enhance safety with precise motion telemetry, and situational awareness in challenging waters. - Vessel Spotters & Enthusiasts: Identify ships, monitor movement patterns, and log encounters with professional accuracy. - Marine Researchers & Surveyors: Collect reliable positional and telemetry data for studies, inspections, or field operations. - Coast Guards & Rescue Teams: Benefit from fast, portable vessel identification tools that complement onboard systems during operations. Built with SwiftUI and a modular real-time architecture, SailControl ensures seamless performance, high reliability, and a modern, customizable interface. From improving racing strategies to increasing safety at sea, it is the go-to digital cockpit for anyone passionate about the maritime world. To receive AIS and NMEA data, you need to configure the IP of your vessel’s AIS and NMEA chartplotter, SailControl Pro requires a subscription. A 7-day trial period is offered so that you can explore the PRO features. SailControl Pro includes: - Advanced vessel filters: search by name, MMSI, and more - Advanced NMEA instruments: Apparent Wind, True Wind, ARPA radar, Motion Sensors, GPS status - Unlimited “My Vessels” tracking: Add more than two(2) vessels to your tracking list - Map recording and Race data export: save and share your tracks, export time/laps as images or to Apple Health - Personalised settings: sort by distance, set max-distance filters - AIS/NMEA parsing controls: choose exactly which messages to process - Underway-only view: display vessels currently underway, to reduce lag in crowded areas - AI Bow Sentry (Experimental): Use artificial intelligence to analyze a live camera feed from your iPhone or an RTSP camera installed near the bow of your vessel. AI Bow Sentry assists in detecting potential obstacles and collision risks by identifying objects ahead of the boat and improving forward awareness. - AI Sail Trim Assistant (Experimental): Receive AI-powered sail trimming insights using your iPhone camera or an RTSP camera positioned near the steering area. SailControl analyzes sail shape and provides experimental recommendations to help optimize trimming decisions and sailing efficiency. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.defendcyberspace.com/privacy
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Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | U.S. Inland Navigational Rules | SailControl |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.3 (6 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 27 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 13.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 23 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | The Other Hat | Defend Cyberspace |
In-app purchases
U.S. Inland Navigational Rules
No in-app purchases
SailControl
- Monthly7 Days trial$2.991 Month
- Annual7 Days trial$14.991 Year
Questions
Is U.S. Inland Navigational Rules free?
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Which is updated more often, U.S. Inland Navigational Rules or SailControl?
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