any mobile blast design apps that actually work?

[rocketman.]

I'm looking for a solid blast design calculator I can use on my phone
doing the math manually for 1200+ hole shots with uneven rows is a headache

I really just need something where I can plug in the pattern and timing to see my holes per delay
if it calculates scaled distance, even better. I've tried a few apps that were total junk, anyone have a go to for the field?

 

[mining15life]

try the Dyno Nobel’s blast calculator. it's probably the closest thing you can find for this

 

[hazguard]

Absolutely! The Dyno Nobel blast calculator is excellent and truly one of the top tools for the field