Best Android Free Apps for Architects

Design Dimensions - Standard dimensions of most common architectural entities

Mobile Sketchbook - Android version of Autodesk Sketchbook
Autocad WS - Autocad
Measure and Sketch - Live measuring and sketching tool
Construction Helper - Good for calculating areas and volumes.
Handyman Calculator - Best construction calculator of all. And most important tool for Architects.
BuildApp - Best for creating floor plans and can be visualised in 3D.
House Plans - Free readymade residential floor plans.
Smart Measurement Tools - Tremendously efficient and time saving tool.
Geek Tool Light - Best tool for survey and leveling.
Expense Manager - Manage your Expenses.
Construction Estimator - Simple estimator
Feets and Inches Calculator - As name says. Simple yet powerful.
Diary of Success Puncher - Keep track of your daily progress.
Day Counter - Days countdown app

Upcoming BIM Tools

Tekla - for project coordination
Bluebeam - collaborative BIM pdf tool
ProjectWise - highly powerful project management tool
E-Builder - Construction program management software.
Note Vault - Daily on site reporting tool
VICO - 5D Construction management software.
Snagit - Most powerful screen capturing tools for coordination
GoToMeeting - Setup meetings, webinars, conferences.