iPhone Screenshots


TAIDER is the best navigation application for Masurian sailors. The most accurate nautical charts on the market were created specifically to cover your needs. We have created innovative features to make sailing even more comfortable and safe. TAIDER is an irreplaceable application to find the right direction on the Masurian Lakes.

Available subscriptions:
24 hours - To test. Free.
7 days - 37,99 PLN
14 days - 59,99 PLN
1 year - 199,99 PLN

What you get?

+ The best navigation charts of Masurian Lakes - TAIDER contains the best bathymetric charts, made on the basis of newest bathymetric surveys. Our charts cover all of the Great Masurian Lakes* and are very clear and intuitive in usage. Having them makes you able to sail even during the night or in the fog. On TAIDER charts you will find all necessary information like depth, ports layouts, jetty locations, moorage spots, silence zones, reeds, forests and buildings. Despite that, our charts are small (only few MB). Once downloaded are kept in your device memory to save data transmission.

+ Unmarked hazards - TAIDER’s charts contains even that shallow places and stone reefs which have not been marked with buoys on the water. When sailing on Masurian Lakes, you don’t have to be limited by lateral marks. Feel safe and free to sail across all the Great Masurian Lakes.

+ Collision alert - TAIDER has an innovative warning system. You don’t have to frequently check your position on the map. TAIDER will warn you about nearby hazards by emitting a sound signal, and give you the time to correct your course.

+ Pricing in marinas - Wonder which port fits your needs? TAIDER provides all information about available infrastructure.

+ Mooring spots - Masurian Lakes show their true beauty away from loud and crowded ports. TAIDER will show you all the best places for mooring at the shore.

+ Cruise info - TAIDER allows you to display and record your trail. After returning from a cruise, you can recall memories by replaying the route you have traveled on eg. using Google Earth.

*Bathymetric charts of lakes currently available in Taider app: Ryńskie, Tałty, Mikołajskie, Bełdany, Nidzkie, Tałtowisko, Jagodne, Boczne, Niegocin, Tajty, Kisajno, Dargin, Łabap, Dobskie, Mamry, Święcajty. More lakes soon.

What’s New

Version 1.0.1

Bug fixes


Navcart sp. z o.o.
15.7 MB

Requires iOS 11.4 or later. Compatible with iPhone, iPad, and iPod touch.


English, Polish

Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© 2014 Navcart sp. z o.o.
In-App Purchases
  1. Access for 365 days $41.99
  2. Access for 7 days $7.99
  3. Access for 14 days $12.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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