Ozinga Concrete Calculator

I love this concrete calculator! Makes my job much easier!! Thank you for the amazing free app!!

Need update

Need to update your app for ISO 11

I use this app multiple times a day and I love it. Very accurate. Need to update for new iPhone software update. Please hurry

Great app! Just it doesn’t work anymore without the new update that happened to all I-Phones iOS 11 Please fix it.

I calculated a concrete pour using this app, and came up painfully short (1 yard short). Talked to the concrete supplier and their numbers were much higher. I verified the numbers from the concrete supplier with a different calculator. This app is not accurate! Costing me hundreds in time and additional delivery fees. BEWARE! Even though this a visually appealing app it is worthless because the calculations are wrong.

Kinda useless. Most idiots can calculate cubic yards. Looking for an app that will calculate bags of concrete needed

Great application from a great company. Keep up the great work.

No vale madres esta applicacion!!! It wont open up!

I couldn't get loc service to enter address in project sheet. it did send accurate link when e-mailed. Also the dimensions did not carry to share.. the width was zeroed out but remained true when I went back to calc. The total stayed correct tho. It would be nice to able to save once you move on the last project is gone. Unless you email to yourself of coarse. With out the ability to catalog you are unable to total the entire job ex: footing/slab/fwork/. If you have to send or write down multiple calc's then total for job why not just use a standard calc? Sending 3 emails for the same job can cause mistakes.