This app calculates the one-rep max of a given exercise using the amount of weight lifted and the number of reps the user is able to do with that given weight. This app uses the following formulas to calculate one-rep maxes:

Bryzycki formula: $weight\ast (36\mathrm{/}(37-numberofreps))weight\; *\; (36/\; (37\; -\; number\; of\; reps))$

After the one-rep max is calculated, a table containing the recommended repetitions for that exercise based on a percentage of the one rep max is generated.