Portulator

by Mark Karasz · Utilities · $1.99

On the App Store since September 2011 · Data updated 2026-10-14

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Portulator is made and published by Mark Karasz. AppBrain is an independent app data site and isn't affiliated with Mark Karasz. The app name, icon, screenshots and description belong to Mark Karasz and are shown as published on the App Store.

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Rating on App Store: 5.00; 2 ratings
Last updated: September 20, 2022

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Version: 4.0
Launched: September 2011

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Technology

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Price: $1.99
App size: 1.45 MB
Content rating: High

Technologies used by Portulator

About the app and developer

About Portulator

Portulator is an utilities app developed by Mark Karasz.

User Ratings

Portulator is rated 5.00 out of 5 stars. The rating is based on 2 ratings.

App Information

Portulator costs $1.99. The app size is 1.45 MB. The latest version available is 4.0. The last update was on September 20, 2022.

Technical Requirements

The app has a content rating of High Maturity. The app has been available on the App Store since September 2011.

Developer information for Mark Karasz

Mark Karasz

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Store listing

By Mark Karasz, from the App Store

Screenshots by Mark Karasz, from the the App Store listing

Description by Mark Karasz Written by the developer, not by AppBrain. Click to read.

This app is a utility that calculates the amount of spirits to add to a wine to make a port wine of a target alcohol percentage. The first tab is for fortified wines where the user simply inputs the wine volume, wine alcohol percentage, spirits alcohol percentage, and the desired port wine alcohol percentage. The result is the volume of spirits to add to the wine. The second tab is for port-style wines. With a given must volume and a starting and ending Brix, one can calculate the amount of spirits to add for a target alcohol percentage and a given spirits alcohol percentage. The tab also calculates residual sugar after the addition of spirits.

Official page on the App Store

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