BlockRebar is an Android App that calculates and speaks running 8 inch Concrete Block vertical Rebar placements, while you mark them out.

Enter Panels and Openings, separated by a space. eg: for a wall with an 8' panel, then a 3'8" opening, then a 6'8" panel, enter '96 40 44'.
All panels and openings must be multiples of 8", and the list must end with a panel. (an odd number of entries). Tap 'Demo' to pre-fill with random examples.
Tap the 'Spacing' dropdown and select max rebar centres. Hit 'Calculate' to create the running rebar placement map and enable the control buttons ready to mark out the bars.
Tap 'Next' to step through the running measurements.
Tap 'Auto Speak' and it will say the measurements at set intervals, with a longer delay at larger openings.
Tap 'Voice Input' and say Next, Repeat, Back or Stop to have the app navigate the running setout list and speak the results to you.
Please visit this page with an Android Device
Downloading File...
Check Downloads or File browser to install app.
To download and install BlockRebar on your Android device, tap Settings / Applications and check the 'Unknown sources' check-box to allow the install.
Tap the button above to downlaod the app, then on the device, tap Downloads (or FIle Manager) then BlockRebar.apk in the list and hit 'Install'.
If your Android device does not already have Text to Speech installed, the app will direct you to the Android App Market to install the free plugin.