Kirkmcdonald's Factorio calculator is ported as an offline Android and IOS application : r/factorio
Factorio Mod Spotlight - Calculator UI - YouTube
GitHub - etillison3350/Factorio-Calculator: A calculator for the number of assembly machines required to produce given products at given rates in Factorio.
My Factorio Calculator : r/factorio
Rate Calculator - Factorio Mods
Factorio Blueprint Visualizer' that simply visualizes the blueprint of the factory construction sim 'Factorio' - GIGAZINE