S.D Timer vs Autolyse

S.D TIMER computes the exact feeding schedule for your sourdough starter, working backward from your target ready time to give you a precise feed time and gram-level recipe. HOW IT WORKS Enter six parameters: target ready time, quantity of starter needed (grams), desired hydration percentage, flour type, starter activity level (%), and ambient temperature (°C or °F). The app applies a fermentation kinetics model that factors temperature-dependent metabolic rates of lactic acid bacteria and wild yeast to calculate when your starter will hit peak activity. OUTPUT — YOUR FEEDING PLAN • Feed time: the exact moment to feed so your starter peaks on schedule • Starter / flour / water quantities in grams • Feed ratio (e.g., 1:9.8:9.8) • Estimated peak pH • Predicted flavor profile (mild, balanced, tangy, complex) • Recommended bread types suited to the resulting starter profile • Fermentation timeline chart with 80% activity window marked Set process alarms directly from the results screen to get notified at feed time and at peak. DESIGNED FOR PRECISION Temperature has a nonlinear effect on fermentation speed. A 5°C difference between summer and winter kitchens can shift peak time by 2–4 hours. S.D TIMER accounts for this so your timing stays consistent regardless of ambient conditions. Supports both Celsius and Fahrenheit. Works across all flour types including whole wheat, rye, spelt, and einkorn. Starter activity input lets you calibrate for your specific culture's behavior. PROFESSIONAL & HOME BAKERS Built for bakers who want repeatability and data-driven control over their sourdough process. Used by professional bakery instructors for workshop demonstrations and planning. No login required. Works offline once loaded. FREE VERSION This is the free edition of S.D TIMER, supported by banner ads. For an ad-free experience, upgrade to S.D TIMER Pro.

Your starter doesn't care about 12-hour rules. It cares about temperature and how much you feed it. Autolyse is a sourdough tracker that actually gets that — built around how real home bakers actually bake. Track your starter, predict its peak from your feed ratio and kitchen temperature, run your bake stage-by-stage, and keep a journal worth re-reading next Sunday. No subscriptions. No ads. No account. No tracking. WHAT AUTOLYSE DOES Peak prediction that learns your starter Autolyse works out the peak from your feed ratio and kitchen temperature, so a 1:5:5 feed isn't timed like a 1:1:1. Tap It's peaked when it does, and every prediction after that is tuned to your own starter. A real bake journal Stage-by-stage timing for same-day and overnight schedules, crumb photos, star ratings, and the notes you'll actually read next time. Baker's math, solved Dial in dough weight, hydration, levain, and salt percentages. Save go-to formulas. Scale cleanly. Multiple starters, named Doughlores, Breadley, the rye experiment. Each with their own flour blend and feeding schedule. Multi-component flour blends Record 80/20 bread flour and whole wheat, or any other blend you actually mix, so every starter's recipe is written down. Your data, your device Everything stays on your phone. Syncs across your Apple devices via iCloud. Nothing sent to any server of mine, because there are no servers of mine. PRO UNLOCK — PAY ONCE, KEEP IT FOREVER Free with one starter, peak prediction that learns your starter, full bake tracking, the bulk ferment tracker, and CSV export. A one-time unlock adds multiple starters, the baker's math and dough temperature calculators, Ready by scheduling, bake diagnosis, multi-component flour blends, weekly insights, bake streaks, starter age milestones, and share cards for your best crumbs. No subscription. No upsells. No hidden tiers. WHO IT'S FOR Home bakers who've gotten serious. You've got a named starter. You care about hydration. You know what autolyse means. You want an app that respects the craft — not a food app that happens to have a starter tab. WHAT IT ISN'T No community feed. No leaderboards. No "share your bake" pressure. No ads chasing you. This is a private, quiet tool — like a proper notebook. PRIVACY Autolyse collects no personal data. No analytics SDKs, no crash reporters of my own, no trackers. Read the full policy at autolyse.charithp.com/privacy.