Crust: Pizza Dough Calculator
Backtimer, doses, troubleshoot
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Pizza dough math for home bakers. Backtimer schedules your mix from your bake time. Calculator with style-aware ranges. Symptom troubleshooter. Pay once, no subscription.
Pay once. No subscription, no ads, no account. Works offline.
Crust is pizza dough math for home bakers — the three things every PizzApp+ review asks for, in one app you buy once. A backtimer that schedules your mix from your bake time. A calculator with hydration / salt / oil / yeast ranges from named sources. A symptom troubleshooter for when the dough is fighting you.
Backtimer
Tell Crust when you want to eat. Pick same-day or cold-ferment. Get a timestamped schedule — mix, bulk, ball, final proof, bake. Cold ferment maxes out at 72 hours so the dough doesn't go boozy on you. Yeast percent recommended for the chosen cold-ferment length is shown right on the slider.
Calculator
Pick a style and Crust pre-fills hydration, salt, oil, and yeast at that style's defaults. Override anything. Hydration shows a status dot for in-range vs out-of-range against that style's source-cited band — Neapolitan home oven 60–70%, AVPN spec 55.5–62.5%, New York 58–65%, Detroit 65–75%, Sicilian 57–70%, Roman 50–55%. Outputs flour / water / salt / oil / yeast in grams scaled to your dough-ball count and weight. Convert yeast between instant, active dry, fresh, and sourdough starter inline.
Troubleshooter
Pick the closest symptom — dough too wet, won't rise, domed in the fridge, smells boozy, dense underbaked, tough and chewy, won't brown. Crust gives a next-time fix and, where possible, a rescue for the batch on the bench right now.
Sources
Hydration, salt, and yeast ranges are cited per style — AVPN spec, Tony Gemignani, Ken Forkish, Marc Vetri, Anthony Falco. The 72-hour cold-ferment cap is the fond.kitchen yeast table. Symptom advice is the consensus across PizzaMaking forum threads and the working pizzaiolo community.
Six styles
• Neapolitan (home oven) — 60–70% hydration
• Neapolitan (AVPN spec) — 55.5–62.5%, no oil
• New York — 58–65%
• Detroit — 65–75%
• Sicilian — 57–70%
• Roman — 50–55%, crisp + thin
For home bakers cooking on Ooni, Gozney, Effeuno, Roccbox, baking steel, or just a sheet pan. Universal app for iPhone and iPad.
$4.99 one-time. No subscription, no ads, no account, no cloud.
Privacy: Crust collects nothing. No analytics, no accounts, no network requests. Your settings live on your device.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Maintenance update. No feature changes.
The developer, Roman Kopaliani, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Roman Kopaliani
- Size
- 944.1 KB
- Category
- Food & Drink
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 6 more
- English, French, German, Italian, Japanese, Portuguese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Crust Pro (lifetime) $4.99
- Copyright
- © 2026 Roman Kopaliani