Comparison

S.D Timer vs Proofed

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

S.D Timer

Features
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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 (ยฐC or ยฐF). 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 โ€” YOUR FEEDING PLAN โ€ข Feed time: the exact moment to feed so your starter peaks on schedule โ€ข Starter / flour / water quantities in grams โ€ข Feed ratio (e.g., 1:9.8:9.8) โ€ข Estimated peak pH โ€ข Predicted flavor profile (mild, balanced, tangy, complex) โ€ข Recommended bread types suited to the resulting starter profile โ€ข 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 5ยฐC difference between summer and winter kitchens can shift peak time by 2โ€“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.

About

Proofed

Features
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Proofed is a sourdough starter tracker and bake scheduler for people who bake once a week, not once a day. Keep your starter in the fridge and Proofed reminds you to feed it on the right cadence, in the starter's own voice. Tell it your kitchen's temperature and when you want bread on the table, and it builds the whole bake, feed, mix, folds, shape, cold proof, bake, with notifications on your iPhone and Apple Watch. When the loaf is cool, Chef Henri, our brutally honest AI baker, reads the crumb and gives you a diagnosis, a score out of 100 and the one thing to change next bake. MEET CHEF HENRI Slice your loaf, snap a photo, and a brutally honest AI master baker grades your fermentation, texture, oven spring, and crust out of 100 โ€” then tells you exactly what to fix next bake. He is very hard to impress. Scores of 95+ are the stuff of legend. TIMELINES THAT MATCH YOUR KITCHEN Sourdough timing shifts with temperature โ€” a 4-hour bulk in a warm kitchen is 6 in a cold one. Tell Proofed your temp and it builds your whole bake day: feeds, folds, shaping, cold retard, bake. With notifications at every step, Lock Screen Live Activities, and Apple Watch support. A STARTER WITH FEELINGS Name your starter. Feed it. Watch it bubble happily, get hangry, or nap in the fridge. Build feeding streaks, get AI health checks from a jar photo โ€” and if you neglect it, it will guilt-trip you by push notification. In first person. TECHNIQUE DEMOS ON EVERY STEP Not sure what a coil fold looks like? Every timeline step includes a looping video demo โ€” stretch & folds, shaping, scoring, lamination โ€” right where you need it, no searching mid-bake with floury hands. GROW A SOURDOUGH DYNASTY Real starters get shared. Gift a piece to a friend with a link โ€” when they claim it, their starter joins your family tree. Generations, descendants, and bragging rights, tracked forever. THE WEEKLY BAKE Every week, every baker gets the same challenge. Bake it, scan it, climb the leaderboard. Scores only count if Chef Henri gave them โ€” no cheating. MASTERCLASS RECIPES Nine complete recipes with baker's percentages, step-by-step methods, and Chef Henri's tips โ€” from classic San Francisco sourdough to high-hydration ciabatta and rustic baguettes. Each one generates its own custom bake timeline. PLUS โ€ข Loaf Gallery: every scan saved, with personal records and your score trend โ€ข Baker's math calculator with live hydration sliders โ€ข A free web crumb rater to challenge your friends HONESTLY PRICED No $5-a-week nonsense. No hostage cancellation flow. The free tier includes your starter, one active bake timeline, and 3 Chef Henri scans โ€” no account, no card. Proofed Pro unlocks unlimited scans and dough check-ins, unlimited timelines, and all Masterclass recipes for $3.99/month or $29.99/year. Cancel anytime in two taps from Settings. Proofed Pro is an auto-renewing subscription: $3.99 per month or $29.99 per year. New subscribers get a free trial first: 3 days on the monthly plan, 7 days on the yearly plan. Payment is charged to your Apple ID when the trial ends, or at confirmation of purchase if you are not eligible for a trial. It renews automatically unless cancelled at least 24 hours before the end of the trial or the current period. Manage or cancel any time in Settings > Apple ID > Subscriptions. Starter care, one bake timeline and three Chef Henri verdicts stay free without a subscription. Terms of Use: https://getproofed.co/terms Privacy Policy: https://getproofed.co/privacy

Screenshots

S.D Timer4 screens
Proofed4 screens

Verdict

The call

The clearest difference is in-app purchases: S.D Timer at none against Proofed's 2. S.D Timer also leads on iOS requirement (15.0 vs 17.0). Proofed's advantage is ads (none vs shown). On price and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Proofed sells 2 in-app purchases, starting at $3.99 per month. S.D Timer asks for nothing beyond the download.

Scorecard3 real differences ยท 3 level
S.D Timer versus Proofed: the parameters behind the verdict, then further details
ParameterS.D TimerProofed
PriceFreeFree
Update frequencyโ€”Every 2 months
AdsYesNo โ€” better
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, Apple Watch
Requires iOS15.0 โ€” better17.0
Further details โ€” not scored
Size4 MB46 MB
Age rating17+4+
Developeroran kamelgarnPurpose Brands LLC

In-app purchases

None

S.D Timer

No in-app purchases

2 purchases

Proofed

Subscriptions2
  • Proofed Pro Monthly$3.991 Month
  • Proofed Pro Yearly$29.991 Year

Questions

Is S.D Timer free?
S.D Timer is free to download, with no in-app purchases.
Is Proofed free?
Proofed is free to download, with in-app purchases available.
Do S.D Timer or Proofed have ads?
S.D Timer shows ads; Proofed does not.

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