# Mr. Malty's Pitch Rate Calc — Homebrew Yeast Calculator

> Homebrew Yeast Calculator (iPhone/iPad app by McDole Group LLC.)

- Source: https://appshunter.io/ios/app/mr-maltys-pitch-rate-calc/id6783972892 (this page in markdown: same URL + `.md`)
- Developer: [McDole Group LLC](https://appshunter.io/developer/6783972894)
- Category: Food & Drink, Utilities
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 15.1 · 35 MB
- Languages: American English
- Released: 2026-07-27
- Data updated: 2026-07-30
- User reviews in markdown: https://appshunter.io/ios/app/mr-maltys-pitch-rate-calc/id6783972892/reviews.md

## What is Mr. Malty's Pitch Rate Calc?

Pitch rate is the single biggest factor in how your beer turns out -- and most homebrewers are guessing.

Mr. Malty's Pitch Rate Calculator takes the guesswork out of yeast pitching. Enter your batch size, original gravity, and yeast details, and get an accurate cell count in seconds. Based on the proven formulas of Jamil Zainasheff, one of homebrewing's most respected voices.

WORKS WITH ANY YEAST
- Liquid yeast (Wyeast, White Labs) -- viability adjusted for package age
- Dry yeast -- calculates packets needed
- Repitched slurry -- accounts for viability and concentration

FAST AND ACCURATE
- Trusted formulas refined over years of real-world brewing
- Viability decay automatically calculated from manufacture date
- Results in billions of cells -- no more guessing

FREE TO USE
- No account required
- All calculator features included -- no paywalls
- Contains ads, with an optional one-time purchase to remove them

Whether you're brewing your first extract batch or dialing in a lager fermentation, the right pitch rate means cleaner flavors, faster starts, and more consistent results.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |



## Version history (last 1 release)

### 1.0.65 — 2026-07-27

No release notes.

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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 2026-07-30.*