On iPhone 4 iOS 7

So Ive had the other app for a little over 2 years maybe 3. I never update and only updated once when it wasnt working. So I recently just felt like updating cause I saw that they talked about some equipment selection in description on the other athlean x. I updated and I dont see it. Now I realize that its on this app. I dont understand, whats the credit system and how do you get more?

Now I dont mind buying premium its just that why are there other options to upgrade when they all lead to the same one premium upgrade I believe and couldnt you just update the other app with equipment selection? Also premium says buy for 0.99 but when you go to actually purchase the premium it says 1.99. Why trick me? Lol

Anyways this app actually works and Ive seen what it can do personally over the years. Its just that I dont want to change apps but I guess I have to. I just hope that I get the same amount of exercises and meal plan when I purchase this one. The old app use to be one of my number one apps but now this one will take its place.

Chris Raz about 6 Pack Promise - Ultimate Abs, v1.5