# Curd: Cheese Making Calc — Yield, rennet, brine & aging

> Yield, rennet, brine & aging (iPhone/iPad app by Roman Kopaliani.)

- Source: https://appshunter.io/ios/app/curd-cheese-making-calc/id6779934934 (this page in markdown: same URL + `.md`)
- Developer: [Roman Kopaliani](https://appshunter.io/developer/1635315269)
- Category: Food & Drink, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-06-17
- Data updated: 2026-08-27
- User reviews in markdown: https://appshunter.io/ios/app/curd-cheese-making-calc/id6779934934/reviews.md

## What is Curd?

Every number a home cheesemaker has to get right — in one offline app, with every formula traced to a named source.

Curd does the math that stands between you and a ruined batch, then carries the batch into the cave with a flip-and-wax aging log. No subscription. No account. No internet required.

THE CALCULATORS
• Yield — enter your milk volume and cheese style, get the cheese weight to expect. Hard cheeses use the Van Slyke formula (fat + casein + moisture) when you know your milk; everyone else gets style-typical yields (cheddar, gouda, brie, mozzarella, chèvre and more).
• Rennet — milk volume and rennet form (liquid single or double strength, tablet, or IMCU rating) → exact drops, milliliters, or tablet fraction, with the standard dilution note.
• Culture — scale a direct-set (DVI) packet rated for any number of gallons down to your pot, mesophilic or thermophilic.
• Calcium chloride — the fix for store-bought milk that won't set: the right dose per gallon, and the warning never to use it for mozzarella.
• Brine — target salinity in percent or salometer degrees → salt weight and water, anchored to the 26.4%-salt saturated-brine reference.
• Mozzarella acid — citric acid per gallon to hit the pH 5.2 stretch window for 30-minute mozzarella.

THE AGING LOG
Log a make — style, milk volume (carried straight from the yield calc), and date — and Curd computes the ready-by date and the target temperature and humidity band for that style. A per-style flip / turn / wax / wash schedule with optional reminders means you never forget to turn the gouda. A glanceable cave view shows what's aging and when each wheel is ready.

EVERY NUMBER HAS A SOURCE
Curd doesn't invent values. Yield, dosing, brine, and aging numbers are drawn from Gianaclis Caldwell (Mastering Basic & Artisan Cheesemaking), Ricki Carroll (Home Cheese Making), the Van Slyke yield formula, and the Cheese Science Toolkit — each cited in the app.

BUILT RIGHT
• Works fully offline — your kitchen, your data, no cloud.
• Metric and US units throughout (liters/gallons, grams/ounces, °C/°F, % and °SAL).
• Dark theme, full Dynamic Type, and VoiceOver labels on every result.
• Universal — iPhone and iPad.

Curd is a reference tool for home cheesemakers. It shows published formulas and your own inputs; it is not a substitute for your own judgment, a calibrated thermometer, or food-safety guidance from your local authority.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Curd Unlock (lifetime) | $6.99 | one-time |



## Version history (last 3 releases)

### 1.2 — 2026-08-17

Maintenance update. No feature changes.

### 1.1 — 2026-07-16

The number keyboard now has a Done button, so you can dismiss it when you're finished. Thanks to everyone who wrote in about this.

### 1.0 — 2026-06-17

No release notes.

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| [CurdClock: Cheese Making Timer](https://appshunter.io/ios/app/curdclock-cheese-making-timer/id6761403640) | — | Free | Food & Drink |
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## More apps by Roman Kopaliani

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- [Pond: Koi Chemistry](https://appshunter.io/ios/app/pond-koi-chemistry/id6777459595)
- [Watt: Solar for Van & RV](https://appshunter.io/ios/app/watt-solar-for-van-and-rv/id6777471058)
- [Saline: Saltwater Pool Calc](https://appshunter.io/ios/app/saline-saltwater-pool-calc/id6777715538)

All apps by Roman Kopaliani: https://appshunter.io/developer/1635315269

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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 2026-08-27.*