Hmm... I've evaluated that one in the past and dismissed it (not sure why). Just downloaded it again and .... yes looks quite flexible with most units customisable for each load....except it only show drop in MOA regardless of what units the load is configured for ..what use is that to me! These developers need a kick up the .... they havnt got a clue how people use their apps!
Perhaps it is you who don't have a clue how to use their app. What missing piece of information are you looking for?
For me, after I enter my gun details, ammo performance details, target details, and scope details, I'm interested in seeing what the bullet will go, relative to the current "zero" range, if I dial in a new longer or shorter range. This app tells me that in detail and in any kind of unit I might possibly use.
Go to Adjustments for current shooting and you'll find a screen where you can dial in distances different from your zero range. It shows both vertical and horizontal changes in inches, MOA, Mils, and Clicks. You can set how many clicks/inch for each of your scopes, even if you use several different scopes, and the app remembers. Don't like clicks/MOA? You can set clicks/MIL or clicks/IPHY if you happen to have that kind of scope turrets.
If you prefer a table, the next screen shows both inches and MOA at various ranges. Or if you prefer a picture, just dial in the new range and you can see what the target looks like in your reticle. You can input the target size, scope brand, and reticle type so that the picture looks like YOUR scope for each range you select. The next screen shows a plot of the bullet path in inches both with your current zero setting and the new range.
In other words, if you're trying to figure out where your bullet goes at a particular range, this app will give you just about every piece of information you might want or need. Of course, if your brain works in metric units, you can get those too.
I'm trying to imagine what else you might want from an app when it comes to calculating bullet drop at various ranges. What exactly is it that you want?