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Gpredict vs tracker: catalog facts
Gpredict	tracker
Free Free software under the GNU General Public License.	Free Free and open source under the Apache-2.0 license.
Windows, macOS, Linux	Windows, macOS, Linux, Command line
Real-time positions shown on maps, tables and polar plots Detailed predictions for upcoming passes	Shows satellite positions and trajectories in real time Includes a sky view and continuous world map
Precompiled binaries come from third parties rather than the project Desktop interface only, with no mobile version	Uses a terminal interface Automatic orbital data updates use CelesTrak
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License: Apache-2.0
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 8, 2026

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