BlendZ 4+

Darren Alexander

Designed for iPad

    • 3.0 • 2 Ratings
    • $0.99



Creativity frequently begins with a brilliant thought, rapidly followed by the frantic scribblings of pencil on paper, often accompanied by thumping's on a calculator. This is where BlendZ began.

I wrote BlendZ to save me time working-out and re-calculating the math for large, widescreen, overlapping (blending) projectors, to make up screens larger than a single projector's image. If you need to work out the math for a wide screen projection surface using multiple projectors BlendZ is for you.

To begin all you need to know is the desired width and height of the projection surface, the native chip resolution of the projectors (or output resolution of the source device) you are planning to use, and the number of projectors you think you need. Then, BlendZ will give you all the information you need. BlendZ works in both Feet and Metres, just choose your preferred flavour of measurement and off you go.

Originally this application was written for the Mac and PC as a tool for the Project Managers of Creative Technology ( and now I have released a mobile version for the iOS. Like the desktop version this will draw out the Grids,full with 8 or 16 step Grey-scale (horizontally or vertically) for ease of line up and if needed send out an information sheet as a PDF.

Currently BlendZ only works out the stuff for a single row or column of projectors, at some point in the near future I plan to expand it to calculate projection arrays.

What’s New

Version 1.0.7

I now dynamically check if your device is able to draw the grids, if it can it will if it can't well then you will need to grab the desktop version.
I also now share the files rather than emailing them - as I used to only check that you had the default iOS Mail set up, if you did you could email if you didn't then you were unable to, now it doesn't matter BUT if you see the button saying Share / Email then holding the button down will bring up the email dialogue so that you can email it, I still only check for the default Mail app to be set up, but at least you can share it.

Ratings and Reviews

3.0 out of 5
2 Ratings

2 Ratings

Icer133 ,

Duder has no idea what he is talking about.

The second reviewer must not know how to use the app. I have used this app for years and it has always worked.
It’s a great app and it helps me every time I use it to make sure my numbers are right.

reflexx99 ,

Simply works

the patterns this app generates simply works! Cant wait to add it on my iPad as well

TheRoadLesTravels ,

Horrible. Do Not Waste Your Money

Doesn’t work right. Difficult to enter info. Won’t return values for higher pixel counts.


Buy the Alford app instead.

App Privacy

The developer, Darren Alexander, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

You Might Also Like

Teradek Ranger
Photo & Video
NDI Test Patterns
Photo & Video
MixEffect Pro - Paid Up-Front
Photo & Video
Photo & Video
Catchin' Sync
Photo & Video
Tally Atem
Photo & Video