BotWiner Strength is a lifting log that does the bookkeeping for you. Enter the weight, the reps and the sets, and the app works out the volume, spots every personal record and keeps the whole history in order — so the only thing you have to think about in the gym is the next set. WHAT YOU GET • Exercise library — fifty-four movements organised across chest, back, legs, shoulders, arms, core and full body, each with its own page and history • Your own exercises — add anything the library is…