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

Sourdough Companion is the complete toolkit for home sourdough bakers. No accounts. No cloud. No ads. No data collection. Just you, your dough, and everything you need to perfect your craft.

★ WHY SOURDOUGH COMPANION ★

Most baking apps lock features behind subscriptions or harvest your data. Sourdough Companion is different. Every feature works offline. Your photos, recipes, and bake history live on your device — and only your device.

★ STEP-BY-STEP GUIDES ★

Interactive 6-day starter creation guide and full baking walkthrough — from autolyse to final bake. Every step includes visual cues so you know exactly when to move on.

★ RECIPE BUILDER WITH BAKER'S PERCENTAGES ★ [NEW]

Build recipes the way professionals do — using baker's percentages. Set flour as your base (100%) and define water, salt, and starter as ratios. Switch between percentage and gram views instantly. Scale by number of loaves or target dough weight. Load existing recipes, tweak, and save updates or new variations.

★ SMART HYDRATION CALCULATOR ★

Enter target dough weight and hydration — instantly get precise quantities for flour, water, starter, and salt. Save results directly to your recipe collection.

★ PHOTO BAKE JOURNAL ★

Log every bake with photos, star ratings, hydration, flour type, bulk time, proof duration, oven temp, and tasting notes. Your journal becomes your personal sourdough knowledge base.

★ STARTER TRACKER ★

Record every feeding with ratio, peak rise, time to peak, temperature, and flour type. Add photos to track activity visually across seasons and flour blends.

★ DDT CALCULATOR ★

Calculate the exact water temperature needed to hit your target dough temperature. Accounts for room temp, flour temp, and friction factor.

★ STARTER FEEDING CALCULATOR ★

Enter how much starter you need and your feeding ratio — get precise amounts for seed, flour, and water. Supports any ratio with automatic hydration calculation.

★ FLOUR TOOLS ★

Browse a comprehensive flour library with protein content and absorption rates. Use the Flour Blend Calculator to combine flours and see recommended hydration adjustments.

★ MORE TOOLS ★

• Multi-stage bake timers with background audio alerts
• Kitchen unit converter (g, oz, ml, cups, °C, °F)
• Recipe collection with two-way load/save workflow
• Bake scheduler — plan backward from when you want fresh bread
• Full backup & restore as a single zip file

★ BUILT FOR BAKERS, NOT ADVERTISERS ★

✓ 100% offline — works without internet
✓ No accounts or sign-ups
✓ No ads, ever
✓ No data collection
✓ No cloud — everything stays on your device
✓ One-time purchase, no subscriptions

Whether you're a beginner nursing your first starter or an experienced baker chasing the perfect open crumb, Sourdough Companion gives you the tools to bake better and learn faster.

KEYWORDS: sourdough, sourdough starter, bread baking, hydration calculator, baker's percentage, fermentation timer, bread recipes, baking journal, artisan bread, bread maker, sourdough tracker, starter feeder, levain, autolyse, bulk fermentation, recipe builder, dough scaling, baker's math