Crumb & Scale is the offline bake companion for home sourdough and artisan bread bakers who are tired of juggling spreadsheets and one-shot web calculators. Enter your formula in baker's percentages once and scale it instantly. Dial in a target dough weight or number of loaves and Crumb & Scale auto-computes flour, water, levain, and salt, and shows your true hydration in real time. No more napkin math at 6 a.m. when the oven is already warming. Every bake gets its own journal entry. Snap a crumb photo, log ambient temperature, bulk and final proof times, shaping notes, and how the loaf actually turned out. Next time you want to repeat a winner — or fix a flat one — the answer is right there, not buried in a spreadsheet tab. Keep your starter happy with the built-in feeding tracker and local reminders, so you never miss a refresh before bake day. Everything runs on-device. No account, no sign-up, no cloud, no tracking. Your formulas and notes stay on your iPhone. Buy once for the core app. Unlock unlimited saved formulas and the starter scheduler with a single optional in-app purchase.
