Best apps like Rule Master

7+ similar apps compared and reviewed

4.2 avg rating
4 free apps
Updated October 2026

Looking for something like Rule Master? We've analyzed 7+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to Rule Master

4.9(26 ratings)
$29.99
EZ Celestial Navigation screenshot 1
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EZ Celestial Navigation screenshot 6

This app simplifies celestial navigation using a sextant, providing tools to calculate your position at sea. It offers automated calculations or manual table access, with features for observation archiving and compass checks. Ideal for learning and practicing traditional navigation methods.

Celestial Nav#3

Celestial Nav by Skytip LLC

Modern Celestial Navigation
Worth Considering
🗺️ Navigation
4.3(10 ratings)
FreeIn-App Purchases
Celestial Nav screenshot 1
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This app provides tools for celestial navigation, offering computations for celestial bodies and sight reductions. It includes an offline perpetual almanac and allows for quick capture of observation data for accurate course adjustments.

More apps like Rule Master

4
Nautical Charts & Maps
Nautical Charts & Maps
Nautical Charts & Maps
Nautical Charts & Marine Maps
$8.99

Access NOAA Electronic Navigational Charts (ENC) for offline marine navigation. View detailed information like buoys, depths, and port features. Overlay NOAA weather maps including radar, sea temperature, and wind data.

NOAA Electronic Navigational Charts (ENC)Offline chart downloadsDetailed chart information
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AyeTides
AyeTides
AyeTides
by Hahn Software LLC
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Access tide and current data for over 13,400 global locations without an internet connection. Plan your coastal activities with detailed daily events, interactive graphs, and station search options.

Offline tide and current data13,400+ global locationsInteractive tide graphs
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PRO CHARTS - Marine Navigation
PRO CHARTS - Marine Navigation
PRO CHARTS - Marine Navigation
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Free

Navigate marine environments with detailed nautical charts and route planning. Track your location, find friends on the water, and share your trip details for safety. Offline chart access ensures reliable navigation even without an internet connection.

High-resolution NOAA nautical chartsOffline chart accessWaypoint and route creation
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7
ACR Product App
ACR Product App
ACR Product App
Configure your ACR Products
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Access Class B AIS and Emergency PLB/EPIRB data. View live AIS targets, check distress beacon details, and monitor battery status via NFC or WiFi. Configure your AIS with vessel information.

View live AIS targetsCheck PLB/EPIRB distress beacon detailsMonitor beacon operation time and battery condition via NFC
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