# Badass Proof Calc — OIML Proof & Dilution Calc

> OIML Proof & Dilution Calc (iPhone/iPad app by RONALD JAMES STONE.)

- Source: https://appshunter.io/ios/app/badass-proof-calc/id6771781310 (this page in markdown: same URL + `.md`)
- Developer: [RONALD JAMES STONE](https://appshunter.io/developer/1896763584)
- Category: Utilities, Lifestyle
- Price: Free
- Age rating: 12+
- Requires: iOS 15.1 · 37 MB
- Languages: American English
- Released: 2026-05-26
- Data updated: 2026-05-26
- User reviews in markdown: https://appshunter.io/ios/app/badass-proof-calc/id6771781310/reviews.md

## What is Badass Proof Calc?

Badass Proof Calc is a no-nonsense proof and dilution calculator built for craft distillers, whiskey makers, and serious home distillers.

Plug in your starting proof, target proof, and volume — get the exact amount of water to add. Math is powered by the official OIML alcoholometric tables, so your numbers match what the TTB and the rest of the industry use.

FEATURES
• OIML-accurate dilution calculator
• Density-to-proof conversion using official OIML tables
• Final volume + weight output for both 100-proof and 90-proof references
• Batch history with Julian date numbering for clean record-keeping
• All data stored locally — no account, no cloud, no nonsense
• Works fully offline in the still-house
• Dark, on-brand UI built to live next to a hydrometer, not a laptop

Built by distillers, for distillers. Cut your proof right the first time.


## Version history (last 1 release)

### 1.0 — 2026-05-26

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 2026-05-26.*