# zaCalc2 — Advanced pizza calculator

> Advanced pizza dough and topping calculator with customizable recipes. (iPhone/iPad app by STEVEN HOLL.)

- Source: https://appshunter.io/ios/app/zacalc2/id896310723 (this page in markdown: same URL + `.md`)
- Developer: [STEVEN HOLL](https://appshunter.io/developer/896310726)
- Category: Food & Drink, Utilities
- Price: Free
- Rating: 4.70/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 6 MB
- Languages: American English
- Released: 2014-07-16
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/zacalc2/id896310723/reviews.md

## What is zaCalc2?

zaCalc is an app to help calculate ratios for pizza dough and making pizzas, including the amount of sourdough or yeast to use.

Though there are other pizza or dough calculators, this app uses yeast regression formulas to guide you with the right amount of yeast to use, based on the time you have to ferment the dough and the temperature of your room. It also supports the Apple Watch, so that if you need to lookup amounts you won't get flour all over your phone.

It also can scale the optimal toppings, based on weight, to whatever size pizza you plan to make.

Finally, you can customize the recipes and ratios if you have some that you prefer.

## Key features

- Pizza dough ratio calculation
- Sourdough/yeast amount calculation
- Yeast regression formulas
- Topping scaling by weight
- Customizable recipes and ratios
- Apple Watch support

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/zacalc2/id896310723/reviews.md

### 4/5 — Great app for sourdough users.

*2015-06-06*

There are a lot of people who will have no idea what to do with this app. But if you make pizza with sourdough and you generally know what you are doing, this helps to predict how much starter to use given however much time you intend to ferment given whatever temperature you will be using at various times. 

Very handy.

## Frequently asked questions about zaCalc2

### How does zaCalc calculate yeast amounts?

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.

### Can zaCalc help with pizza toppings?

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.

### Does zaCalc allow custom recipes?

Absolutely. You can customize the recipes and ratios within zaCalc if you have specific preferences or your own tried-and-true formulas.

### Is zaCalc available on Apple Watch?

Yes, zaCalc supports the Apple Watch. This allows you to quickly look up amounts without getting flour on your phone while you're cooking.

### What devices does zaCalc support?

zaCalc is supported on Apple Watch, iPhone, iPad, and iPod. It's designed for a seamless experience across your Apple devices.

### How often is zaCalc updated?

The latest version of zaCalc is 2.2, last updated on October 14, 2025. Updates ensure the app remains reliable and features are current.

### What is the user rating for zaCalc?

zaCalc has a strong user rating of 4.7 stars based on 3 ratings. This indicates a high level of user satisfaction.

### Does zaCalc have ads?

No, zaCalc does not contain advertisements. It provides an ad-free experience for users.

## Version history (last 5 releases)

### 2.2 — 2025-10-14

Fixed a bug where changing units in settings didn't convert the unit values.

### 2 — 2025-10-02

- Baker's yeast calculations.
- UI updated for modern iOS design guidelines
- Supports apple watch for recipe reading
- Supports iPad and screen rotation
- Added ability to scale topping ratios based on pizza diameter
-  Re-written in swift

### 1.12 — 2015-03-31

This app has been updated by Apple to display the Apple Watch app icon.

Fixed the bug with checkmarks not appearing on the recipe picker.

### 1.1 — 2014-12-10

Support for iPad, and optimized view for iPhone 6 Plus.

### 1.0 — 2014-07-14

No release notes.

## Apps similar to zaCalc2

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Panetti](https://appshunter.io/ios/app/panetti/id1503180981) | — | Free | Food & Drink |
| [PizzaDoughPal](https://appshunter.io/ios/app/pizzadoughpal/id6736921786) | 5.0 (1) | $2.99 | Food & Drink |
| [DoughCalc](https://appshunter.io/ios/app/doughcalc/id601823119) | 4.2 (11) | $0.99 | Food & Drink |
| [My Pizza Calculator](https://appshunter.io/ios/app/my-pizza-calculator/id6503597530) | — | Free | Food & Drink |
| [Pizza Recipes.](https://appshunter.io/ios/app/pizza-recipes/id6479219753) | — | Free | Food & Drink |
| [KA Foods](https://appshunter.io/ios/app/ka-foods/id6553968423) | — | Free | Food & Drink |

## Related topics

[dough guy calculator](https://appshunter.io/ios/topics/dough-guy-calculator)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*