I’ve been using this “Injectly” app for about a week and thought I’d share and compare. Completely free with no ads at all. You input your peptide, bac water amount, syringe size, desired dose, and intended frequency. It calculates how many units and can remind you to take them if you want. Logging is a single button click, and you can review your logged doses on the in app calendar. I love it. If it showed a calendar with my scheduled upcoming doses it would be perfect. I’m currently on iPhone so I’m not sure if android has it. What do you guys use and what do you like/dislike? https://apps.apple.com/us/app/injectly/id6745237189