--- title: "TVMDC Sailing & Marine Navigation Calculator - Reviews, Revenue and Downloads in United States | Apple App Store" description: "A Simple to Use, Marine Navigation Calculator App - for Sailors and Navigators learning to use Charts. The TVMDC App performs three functions: - * Instant TVMDC corrections between True, Magnetic an" --- # TVMDC Sailing & Marine Navigation Calculator — United States ![TVMDC Sailing & Marine Navigation Calculator App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple111/v4/40/29/ab/4029abd8-ecab-36ff-9db8-dfca8024e5d3/mzl.isoqycnw.jpg/400x400bb.jpg) **Developer:** [peter hopper](https://apptail.io/developer/peter-hopper-kOub) **Category:** Navigation **Rating:** 3.0/5 (2 ratings) **Price:** Free **Bundle ID:** com.example.peteh007.tvmdc1 **Store:** Apple App Store **Country:** United States **Version:** 4.0 (released 2017-01-18) **Original Release:** 2015-04-09 **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id981722780) **AppTail Page:** [https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/united-states](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/united-states) ## TVMDC Sailing & Marine Navigation Calculator Description A Simple to Use, Marine Navigation Calculator App - for Sailors and Navigators learning to use Charts. The TVMDC App performs three functions: - * Instant TVMDC corrections between True, Magnetic and Compass bearings. * Set & Drift Calculations from two known Fixes. * Calculation of "Course to Steer" (CTS) based upon a Destination while factoring in both TVMDC and 'Set & Drift' corrections. Allows you to move between True, Magnetic and Compass bearings instantly. A True, Variation, Magnetic, Deviation, Compass (TVMDC) Calculator. Ideal for Sailors who are learning to Navigate with Charts. Includes corrections for : Variation, Annual Magnetic Variation Drift, a boat's Deviation, Set and Drift factors. Simple to use: Input values form the your nearest Chart's Compass Rose: including Variation and Annual Increase. Along with your boat Compass's Deviation. The Calculator will instantly correct between any: True, Magnetic and Compass bearings. Add two known fixes along with your boat's Heading and Speed through the Water. Press Calculate and the App will display your calculated "Set and Drift" values along with a graphical sailing triangle. Any heading or bearing is adjusted for Magnetic Variation and Deviation. Add your Destination and the Calculator will provide your best Course to Steer: factoring in TVMDC and Set and Drift errors. American Sailing Association (ASA) course 105 (Navigation) is an ideal back ground for the App. Also, wikipedia's TVMDC description : YouTube TVMDC App Introduction tutorial: Extensive Help at: Runs on iPhones 5, 6 and 6+, 7, 7+ in Portrait mode ONLY. Planning on new versions and extensions; so please feedback feature requests? ## TVMDC Sailing & Marine Navigation Calculator Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple3/v4/6d/8c/cb/6d8ccbb0-ddc2-2f2e-8f47-45a160042182/pr_source.png/640x960.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple3/v4/8d/d4/a8/8dd4a8e1-6989-4057-3f45-8a510466f8fc/pr_source.png/640x960.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple3/v4/20/92/2d/20922d8f-e60e-3c17-a4e1-1583ac2cf93b/pr_source.png/640x960.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple3/v4/14/e2/ee/14e2eee9-2e6a-9c7b-bbd3-3ecd19a81c60/pr_source.png/640x960.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple3/v4/00/67/5e/00675e4a-506b-32b2-e583-b05df42e4199/pr_source.png/640x960.png) ## TVMDC Sailing & Marine Navigation Calculator Rating Breakdown in United States - 5 stars: 1 (50%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 1 (50%) ## TVMDC Sailing & Marine Navigation Calculator Reviews in United States ### ***** "Great training app for boaters and cruisers" This app is exceptional tool for honing your boating skills while not on the water (like those cold winters up north). Safe boating and piloting courses can really take advantage of this app. -- Jlblan2, 2017-06-30 ### ***** "Suggestions!" Many tanx for your good program. As a marine officer inform you, mostly we need a program for gyro error. Final calculate DEVIATION. If mention this part your program will be tje best. -- Alireza Saraei, 2016-05-29 [View all TVMDC Sailing & Marine Navigation Calculator reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## TVMDC Sailing & Marine Navigation Calculator Store Rankings | Chart | Country | Category | Rank | |-------|---------|----------|------| | Top Paid | Azerbaijan | Navigation | #35 | | Top Paid | Belarus | Navigation | #65 | | Top Paid | Philippines | Navigation | #75 | | Top Paid | Malaysia | Navigation | #99 | | Top Paid | Lebanon | Navigation | #105 | | Top Paid | Ukraine | Navigation | #106 | | Top Paid | Indonesia | Navigation | #125 | | Top Paid | Kuwait | Navigation | #141 | | Top Paid | Russia | Navigation | #150 | | Top Paid | South Africa | Navigation | #151 | | Top Paid | Australia | Navigation | #157 | | Top Paid | Vietnam | Navigation | #163 | | Top Paid | Thailand | Navigation | #164 | | Top Paid | Singapore | Navigation | #175 | | Top Paid | Norway | Navigation | #180 | | Top Paid | India | Navigation | #186 | | Top Paid | United Arab Emirates | Navigation | #191 | | Top Paid | Kazakhstan | Navigation | #202 | | Top Paid | Israel | Navigation | #206 | | Top Paid | Egypt | Navigation | #214 | | Top Paid | Hong Kong SAR China | Navigation | #218 | | Top Paid | Peru | Navigation | #219 | | Top Paid | Canada | Navigation | #221 | | Top Paid | United Kingdom | Navigation | #238 | ## Apps Similar to TVMDC Sailing & Marine Navigation Calculator - [Compass Eye Bearing Compass](https://apptail.io/app/compass-eye-bearing-compass-XrIc/united-states) - [Perpetual Nautical Almanac](https://apptail.io/app/perpetual-nautical-almanac-jWSd/united-states) - [Radar Plotting](https://apptail.io/app/radar-plotting-JXwe/united-states) - [NavLink US](https://apptail.io/app/navlink-us-gtxe/united-states) - [Bearing Pilot](https://apptail.io/app/bearing-pilot-JBbh/united-states) - [Nautical Nomograph](https://apptail.io/app/nautical-nomograph-IXNn/united-states) - [EZ Nautical Almanac](https://apptail.io/app/ez-nautical-almanac-Hjko/united-states) - [Luggify: Luggage Size Checker](https://apptail.io/app/luggify-luggage-size-checker-htcv/united-states) - [Idaho Parks & Trails](https://apptail.io/app/idaho-parks-trails-FlWv/united-states) - [Explore Bermuda](https://apptail.io/app/explore-bermuda-xwTy/united-states) ## TVMDC Sailing & Marine Navigation Calculator Available In - [United States](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/united-states) - [United Kingdom](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/united-kingdom) - [Angola](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/angola) - [Argentina](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/argentina) - [Australia](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/australia) - [Azerbaijan](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/azerbaijan) - [Bahrain](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/bahrain) - [Brunei](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/brunei) - [Brazil](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/brazil) - [Belarus](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/belarus) - [Belize](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/belize) - [Canada](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/canada) - [Switzerland](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/switzerland) - [Chile](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/chile) - [China](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/china) - [Algeria](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/algeria) - [Ecuador](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/ecuador) - [Egypt](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/egypt) - [Grenada](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/grenada) - [Hong Kong SAR China](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/hong-kong) - [Honduras](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/honduras) - [Indonesia](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/indonesia) - [Israel](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/israel) - [India](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/india) - [Iceland](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/iceland) - [Jamaica](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/jamaica) - [Japan](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/japan) - [Kuwait](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/kuwait) - [Kazakhstan](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/kazakhstan) - [Lebanon](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/lebanon) - [Sri Lanka](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/sri-lanka) - [North Macedonia](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/north-macedonia) - [Malaysia](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/malaysia) - [Nigeria](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/nigeria) - [Norway](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/norway) - [Nepal](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/nepal) - [New Zealand](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/new-zealand) - [Philippines](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/philippines) - [Pakistan](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/pakistan) - [Qatar](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/qatar) - [Russia](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/russia) - [Saudi Arabia](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/saudi-arabia) - [Singapore](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/singapore) - [Thailand](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/thailand) - [Türkiye](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/turkey) - [Ukraine](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/ukraine) - [Uruguay](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/uruguay) - [Uzbekistan](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/uzbekistan) - [Vietnam](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/vietnam) - [United Arab Emirates](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/united-arab-emirates) - [South Africa](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/south-africa) - [Armenia](https://apptail.io/app/tvmdc-sailing-marine-navigation-calculator-fWSd/armenia) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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