A Metal Ruler provides on screen measurements with reasonable accurate readings. Just place an object on the screen then slide your finger on the screen to move the ruler to the length of the object. The measurement is indicated in Analog and Digital using both English and Metric Units
Gyrocompass 3D Free - Augmented reality comes to the new iPod Touches! Tap the Gyrocompass 3D application on your iPhone 4 or 4th generation iPod Touch to turn it into a fully functioning three-dimensional compass
Bear Grylls - Compass - Having a compass is one thing but knowing how to use it is what really matters. A critical tool for navigation, this application gives you an easy to use compass, an overview and video with Bear and special night mode should you need it
Based on a centuries-old astronomical instrument, Theodolite is a cool multi-function augmented reality app for the iPhone that serves as a compass, GPS, map, zoom camera, rangefinder, and two-axis inclinometer
GyroCompass 3D - Augmented reality comes to the new iPod Touches! Tap the Gyrocompass 3D application on your iPhone 4 or 4th generation iPod Touch to turn it into a fully functioning three-dimensional compass
Altimeter Digital GPS + Map Viewer + Camera + Climb Calc - The most accurate and handy Altimeter is here. It gives you the altitude wherever you are.
Simply start the application and altitude will appear in a second, No setup required. You can also adjust Altitude in Feet or Meter as per your requirement. Special feature saved your Max climb rate value
Based on a centuries-old astronomical instrument, Theodolite Basic is a cool multi-function augmented reality app for the iPhone that serves as a compass, GPS, map, zoom camera, and two-axis inclinometer
Designer Compass w/voice - A DESIGNER Voice (Talking) compass for the iPhone. With this application you will be able to hear your iPhone guiding you.
Every time you change heading, the iPhone will notify you via "voice".
This application will tell you by means of voice the heading using the native compass of the iPhone 3GS (only)
A+ French Voice Compass (boussole) - Finally a French Voice (Talking) compass for the iPhone. With this application you will be able to hear your iPhone guiding you.
Every time you change heading, the iPhone will notify you via "voice".
This application will tell you by means of voice the heading using the native compass of the iPhone 3GS (only)
Talking Speedometer (kilometers) - Finally a Voice Speedometer for your iPhone.
You can set up a MAX SPEED, as soon as you reach the specified speed, the app will start "beeping" till you lower your speed below the specified maximum.
If you are having difficulty reading your cars speedometer while driving, this application is perfect for you