ePhone vs Plottr
A side-by-side look at ePhone and Plottr. For an in-depth review of either product, follow the links below.
ePhone
Social & Communications
ePhone is a free, open source software for making voice over IP (VoIP) calls. It allows you to make free calls over the internet to other ePhone users as well as call landlines and cell phones for low rates using VoIP.
voipopen-sourcefree-callsinternet-calls
Plottr
Data Visualization
Plottr is a free, open source data visualization and graphing software. It allows users to easily create a variety of 2D and 3D plots from data, including line, scatter, bar, pie, and surface plots. Key features include data import from CSV files, customizable axes and legend, exporting images and PDFs, and support for large datasets.
data-visualizationplottingchartinggraphs2d-plots3d-plots