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. Apps: GeoGebra Graphing Calculator GeoGebra Geometry GeoGebra CAS Calculator GeoGebra 3D Calculator https://alternativeto .
- It is a great alternative to desmos. It may be even better than desmos with much more possibilities. These two are like Scratch vs Snap!. However, just like snap!, Visuals in GeoGebra are a bit wonky. However l, if that was not the case,it would be the best open source graphing calculator, even better than matlab.