MrMalty YC 17+

Noah Paci

Designed for iPad

    • 1.8 • 13 Ratings
    • $2.99



New app to calculate stepped starters coming in sprint 2015.

This is a licensed iPhone implementation of the Mr. Malty Pitching Rate Calculator. It can calculate starter sizes, amount of yeast required, the effect of stir plates, dry yeast rates, yeast viability,and lots more. It uses the same proprietary formulas as the calculator on

Jamil's Books:

* Yeast: The Practical Guide to Beer Fermentation:
* Brewing Classic Styles: 80 Winning Recipes Anyone Can Brew:

What’s New

Version 6.5.0

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

* fix for hectoliters(there are 100,000ml in a hectoliter, not 1,000,000 as previously being used in the incorrect unit converter)

Ratings and Reviews

1.8 out of 5
13 Ratings

13 Ratings

bob_no_dogma ,

Unfortunately, no longer working

I have had this app for years, just started brewing again, and the app no longer functions. It was a great app contributed by Jamil, when there were few alternatives to doing it by hand.

Fortunately, there are lots of other tools now available. I would recommend Brewfather which has a broad home brew capability, including yeast starter calculations.

Reg7790 ,

Works great on iPad

Well worth the $2.99. I’ve been using the desktop version that requires Abode Flash since it was developed. With Abode Flash being discontinued I bought this and it’s just as good as the desktop version.

Semco ,

Works Great

I’m not sure why everyone has low rating of this. I find it works great, been using on my iPhone for years. Life saver when you’re at the store and find all they have is older yeast.

App Privacy

The developer, Noah Paci, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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