Great app for sourdough users.
Very handy.

This app assists in calculating precise pizza dough ratios, including sourdough or yeast amounts. It offers advanced features like yeast regression formulas based on fermentation time and temperature, and scales toppings for any pizza size. Users can also customize their own recipes and ratios.
2.2
October 14, 2025
Fixed a bug where changing units in settings didn't convert the unit values.
zaCalc uses advanced yeast regression formulas to determine the correct amount of yeast. This calculation is based on your dough's fermentation time and the ambient room temperature.
Yes, zaCalc can scale optimal toppings by weight for any pizza size you plan to make. This ensures you have the right amount of each ingredient.
Absolutely. You can customize the recipes and ratios within zaCalc if you have specific preferences or your own tried-and-true formulas.
Yes, zaCalc supports the Apple Watch. This allows you to quickly look up amounts without getting flour on your phone while you're cooking.
zaCalc is supported on Apple Watch, iPhone, iPad, and iPod. It's designed for a seamless experience across your Apple devices.
The latest version of zaCalc is 2.2, last updated on October 14, 2025. Updates ensure the app remains reliable and features are current.
zaCalc has a strong user rating of 4.7 stars based on 3 ratings. This indicates a high level of user satisfaction.
No, zaCalc does not contain advertisements. It provides an ad-free experience for users.