ElectroDroid is described as 'is the most complete and powerful collection of electronics tools in Android Market' and is an app in the Education & Reference category. There are five alternatives to ElectroDroid for Android, the Web, Wine, Windows and Linux. The best alternative is Electronics Assistant. It's not free, so if you're looking for a free alternative, you could try Calculatoredge or RF & Microwave Toolbox. Other great apps like ElectroDroid are ECStudio (Paid) and Analog Toolbox (Paid).