Viewlers is a great new Android app. It is a digital ruler and visual ruler combined into one app. It lets you measure objects when you dont have a real ruler. But the accuracy is excellent. You can calibrate the ruler using a real ruler once for more accuracy. Watch the built in video tutorial for a demonstration
This is a totally free android app. It is ad supported. Easy to use and very handy tool.
As accurate as real ruler if calibrated and used properly.
Each phone is different so you can calibrate the ruler using the mobile DPI database or manually using a real ruler
The app has built in link to a Youtube app demonstration video
Measurements are shown on screen in multiple units and you can also convert to different units.
This is our unique way to let you use your phones camera to take a picture and measure objects using markers.
The app is simple to use. From the main menu you can access all the features including a cool sharing screen with multiple social sharing widgets. Choose Viewlers or Digital Ruler.