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Gpredict vs N2YO: catalog facts
Gpredict	N2YO
Free Free software under the GNU General Public License.	Free Free to use in the browser.
Windows, macOS, Linux	Web
Real-time positions shown on maps, tables and polar plots Detailed predictions for upcoming passes	Tracks tens of thousands of objects in real time Pass predictions for your own location
Precompiled binaries come from third parties rather than the project Desktop interface only, with no mobile version	Busy page with news and partner links Requires an internet connection
Downloadable app	Web application
Open source	Closed source
License: GPL-2.0-or-later	License not stated
No account needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.