GeoGebra is free and multi-platform dynamic mathematics software for learning and teaching. It has received several educational software awards in Europe and the USA.
- - GeoGebra is the most popular Web-based, Windows, Android & Mac alternative to Apollonius.
- - GeoGebra is the most popular free alternative to Apollonius.
Free online algebra calculator from GeoGebra: solve equations, expand and factor expressions, find derivatives and integrals
- - GeoGebra CAS Calculator is the most popular Open Source alternative to Apollonius.
GeoGebra CAS Calculator Features
Sketchpad® Dynamic Geometry® software gives students a tangible, visual way to learn mathematics that increases their engagement, understanding, and achievement. And it's not just for geometry.
- - The Geometer's Sketchpad is the most popular commercial alternative to Apollonius.
KSEG is a free interactive geometry program for exploring Euclidean geometry. It runs on Unix-based platforms (according to users, it also compiles and runs on Mac OS X and should run on anything that Qt supports).
The program is no longer updated. Last version, v0.403, released in February 2006, can be still downloaded from the official website.