WMM 2025 vs OsmoTagger

WMM 2025 is targeted towards anyone interested in navigation. This includes, pilots of aircraft, captains of sea going vessels, cartographers, engineers and surveyors. Anyone who uses maps and a compass will find the declination calculation (also referred to magnetic variation) very useful. (Declination is the difference between true and magnetic north and used when plotting a course on a map.) WMM 2025 (World Magnetic Model) calculates the magnetic flux density for any location on the Earth. The model is accurate for dates ranging from January 1, 2024 up through December 31, 2029. Using the model, the app calculates declination and inclination. In addition, the declination trend is calculated over the five year period.

OsmoTagger is an innovative open-source OpenStreetMap (OSM) editing app, licensed under GPLv3, that enables you to conveniently edit OSM maps right from your mobile device. With OsmoTagger, you can quickly download any map area, add new points, and edit tags for points, lines, and polygons without needing to remember specific tags for each object type, thanks to integrated JOSM presets. Key Features: - Efficient OSM map editing from your phone or tablet - Integrated JOSM presets for hassle-free point, line, and polygon tagging - Add and update points, lines, and polygons with custom tags - Easily download and edit specific map areas - Seamless syncing with OpenStreetMap database - Open-source and GPLv3 licensed – designed for cartographers and map enthusiasts Take your OSM editing experience to the next level with OsmoTagger. Get started today!