Yeasta vs S.D Timer Pro

Yeasta is the sourdough companion that knows what's next. Whether you're nurturing your first culture or juggling four starters at once, Yeasta keeps every feeding, every bake, and every outcome in one place. Open the app and it tells you the one thing that matters most right now. KNOW WHAT'S NEXT Smart Today watches your starters and your bakes. Overdue feeding, starter nearing its peak, bake halfway through bulk — the Home screen surfaces the one thing you should do next, the moment you open the app. A running bake shows its time left in big numbers, every starter gets a bar showing how close it is to its peak, and a Coming up list lines up your next feedings and bake steps. BAKE WITH A GUIDE Start a guided bake from any recipe and Yeasta walks you through it step by step. Live timers tick on your lock screen so you can step away and never lose your place. Mark steps complete, add notes, log the outcome when the loaf comes out. CARE FOR EVERY STARTER Track rhythm, ratios, and readiness across every jar you keep. Log feedings in seconds. See which starters are peaking, which are napping, which need feeding right now. Edit or delete any log entry whenever you need to. RECIPES THAT TRAVEL WITH YOU Browse a growing sourdough library: classic country loaves, same-day breads, focaccia, pizza dough, and more. Scale any recipe by tap. Save your favorites. Start a guided session when you're ready. MATH MADE FOR BAKERS Built-in tools handle the math you used to do on the back of a napkin: hydration, baker's percentages, salt, levain ratios, starter scheduling, and temperature conversion. PRO TOOLS FOR SERIOUS BAKERS Five dedicated pro tools take your baking further: - Levain Builder: calculate exact flour, water, and starter ratios for any levain, with optional two-flour blending - What Can I Bake?: find recipes that match your starter, available time, and mood - split into "make now" and "plan ahead" - Fridge Starter Planner: generate a personalized fridge-to-bake timeline with automatic milestone reminders - Starter Revival: symptom-based revival plans with a day-by-day feeding schedule and notifications - Starter Smell Guide: diagnose your starter's health from eight common smell symptoms in seconds EVERY BAKE, REMEMBERED The Journal keeps every feeding, every bake, every outcome. Feedings read like a baker's log, and bakes of the same recipe line up side by side so you can see what changed. Search by name, or just scroll and remember that perfect loaf from last March. Want the raw numbers? Export the whole journal to one CSV file, free. YEASTA PRO - Fully guided bake sessions with live timers and lock screen updates - Unlimited starters - Advanced planning and revival tools - Full baking history, not just today - Unlimited favorite and custom recipes - New tools added continuously Monthly, annual, or Lifetime. Cancel anytime. BUILT WITH CARE No ads. No tracking. No data harvesting. Your baking is yours, backed up to your own iCloud and synced across your devices, free for everyone. Warm light and dark mode, Dynamic Island, Live Activities, Siri shortcuts: Yeasta feels like the rest of your phone. Yeasta may include Amazon affiliate links to baking tools, books, and ingredients. As an Amazon Associate, Yeasta earns from qualifying purchases at no extra cost to you. Built by one baker, for other bakers. Enjoy the rhythm! SUBSCRIPTION TERMS Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in iOS Settings > Apple ID > Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.mordsmith.com/apps/yeasta/privacy

S.D TIMER Pro 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 Pro 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.