Sourdough Companion

Bake better sourdough — from your first starter to your hundredth loaf.

Sourdough Companion is the complete offline toolkit for home sourdough and artisan bread bakers: starter tracker, hydration calculator, baker's percentage recipe builder, bake scheduler, photo baking journal, and troubleshooting that reads your own bakes. No accounts. No cloud. No ads. No subscriptions. No data collection.

★ A SOURDOUGH SCHEDULE BUILT AROUND YOUR DAY ★

Tell it when you want fresh bread, and when you are asleep or at work. It plans
backward and shifts the two levers that actually move a sourdough timetable — feed ratio and cold retard — until every hands-on step lands while you are awake and around. No more 2am starter feeds. Reminders arrive even when the app is closed, and each one tells you what to do, not just which step it is.

★ IT LEARNS FROM YOUR OWN BAKING ★

Log eight bakes and Insights opens up: the hydration and bulk fermentation time your best loaves share, how your starter's vigour and peak rise are trending, whether your kitchen has warmed or cooled with the season, and when you changed too many variables at once to learn anything from a loaf.

★ TROUBLESHOOTING THAT USES YOUR DATA ★

Dense crumb? Gummy texture? Flat loaf? Air tunnels? Pale crust? Too sour? Eleven common sourdough problems, each diagnosed against your own logged hydration, dough temperature, bulk fermentation time and last starter feeding — not generic advice. It rules causes out as well as in.

★ STEP-BY-STEP GUIDES ★

An interactive 6-day sourdough starter guide, and a full bread baking walkthrough from autolyse to bake. Visual cues on every step tell you when to move on. Tap a step to have it read aloud — useful when your hands are covered in dough — and tap unfamiliar terms (levain, banneton, retard, oven spring) for a plain-English definition.

★ RECIPE BUILDER WITH BAKER'S PERCENTAGES ★

Build bread recipes the way professionals do. Flour is 100%; water, salt and
starter are ratios. Scale by number of loaves or by target dough weight. Enriched doughs too — eggs, butter, milk, honey, oil and tangzhong scald all count toward true hydration, so your baker's math stays honest.

★ CALCULATORS FOR EVERY STAGE ★

- Hydration calculator — dough weight and hydration in; exact flour, water, starter and salt out
- DDT calculator — the water temperature needed to hit your target dough temperature
- Starter feeding calculator — any ratio, with feed hydration worked out for you
- Bulk fermentation calculator with the aliquot jar method — a temperature-aware rise target, because warm dough needs less rise, not more
- Flour library and blend calculator — 14 flours with protein content and absorption
- Kitchen unit converter (g, oz, ml, cups, °C, °F)

★ STARTER LOG & PHOTO BAKING JOURNAL ★

Keep more than one sourdough starter. Record every feeding with ratio, peak rise, time to peak, temperature and flour type. Log every bake with photos, star ratings, hydration, bulk time, cold proof, oven temp and tasting notes. Your journal becomes your own bread baking reference.

★ BUILT FOR BAKERS, NOT ADVERTISERS ★

✓ Works fully offline
✓ No account, no sign-up
✓ No ads, ever
✓ No data collection and no cloud — photos and notes stay on your phone
✓ One-time purchase, no subscription
✓ Full backup and restore as a single zip file

Also included: multi-stage bake and fermentation timers with alarms that survive the app closing, Bake Mode to keep the screen on while your hands are busy, dark mode, and a beginner / intermediate / advanced setting that keeps the advanced tools out of the way until you want them.

Whether you are nursing a first sourdough starter or chasing a more open crumb, Sourdough Companion helps you bake better bread and learn faster from every loaf.

A sourdough app that respects your time, your dough and your privacy.