Know exactly when
your starter peaks.
Log what you know — skip anything you don't, we'll use the average. Get a peak-time prediction in seconds, and verify it with a photo. The model learns your kitchen with every bake.
Free for 30 feedings a month. No credit card.
Your starter
Frank
Time to peak
Window: 3h 40m – 5h 05m
Confidence: 87%
Fed
1h ago
Temp
24°C
Hydration
100%
How it works
Three steps. The rest is your starter, doing its thing.
Log the seven variables
Flour, temperature, hydration, inoculation, age, salt. Leave anything out and we'll use the average. About 30 seconds.
Get a peak prediction
Our formula gives you a window — usually 30–60 minutes wide. After three feedings, the model starts learning your kitchen's quirks.
Snap a photo at peak
Our vision model tells you if your starter is rising, peaked, or past it. You can mark the actual peak to keep training your model.
Why StarterPulse
A sourdough tool that respects sourdough.
Personal offset
Your kitchen is different. Your flour is different. After three feedings, the model adjusts to your specific environment — and keeps adjusting.
Vision, not vibes
Snap a photo. Our vision model classifies the starter as under, rising, peaked, or over. No more poking the dough and hoping for the best.
Honest about uncertainty
Every prediction comes with a confidence window. We tell you when we don't know, instead of pretending we do.
Local-first, forever
Your data lives in your account. We don't sell it, we don't train on it without permission, and you can export it any time.
Pricing
Free to start. Cheap if you stay.
No metered AI calls. No surprise overage fees. The price you see is the price you pay.
Free
- 30 feedings per month
- 10 photo checks per month
- Personal offset after 3 feedings
- Full formula breakdown
Pro
Most popular- Unlimited feedings + photos
- Personal offset trains faster
- Priority vision model
- Early access to XGBoost v2
- Email support
Annual plan also available: $19/year (save 47%).
Your starter is alive.
Treat it that way.
Start logging. Within a week, you'll know your starter's rhythm better than you ever have.