---
title: "True Proof - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "True Proof calculates the true proof of a water-alcohol mixture at a reference temperature, using the measured apparent proof from a hydrometer reading and the temperature at the time of the reading. "
---

# True Proof — United States

![True Proof App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple114/v4/d9/67/cb/d967cb19-950f-c8df-3304-15d8d8ebd9bc/AppIcon-0-0-1x_U007emarketing-0-0-0-7-0-0-sRGB-0-0-0-GLES2_U002c0-512MB-85-220-0-0.png/434x0w.png)

**Developer:** [Greg Miller](https://apptail.io/developer/greg-miller-WLad)
**Category:** Utilities
**Rating:** 4.0/5 (4 ratings)
**Price:** Free
**Bundle ID:** com.example.True-Proof
**Store:** Apple App Store
**Country:** United States
**Version:** 2.40 (released 2020-10-18)
**Original Release:** 2014-08-05
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id901015790)
**AppTail Page:** [https://apptail.io/app/true-proof-xSJf/united-states](https://apptail.io/app/true-proof-xSJf/united-states)

## True Proof Description
True Proof calculates the true proof of a water-alcohol mixture at a reference temperature, using the measured apparent proof from a hydrometer reading and the temperature at the time of the reading.

True Proof also performs gauging calculations, and can calculate dilutions taking full account of the temperature-dependent nonideal mixing of water and alcohol.

Calculations are logged, and may be annotated and emailed for archiving.

Multiple units support large-scale distillers and hobby-scale distillers alike, in the US and abroad:  concentration measurement in proof, ABV, or density ; temperature in °F or °C; abundance in US gallon, liter, pound, kg, US ton, or metric tonne, etc.

The reference temperature can be selected for US (60ºF) or international (20ºC), or any other value in the range [-20ºC,40ºC].  The instrument thermal expansivity can be selected, which enables application to vibrating tube densitometers in addition to hydrometers.

Two separate computational models are employed - one based on the (US) TTB gauging manual, and one based on  OIML (UK, EU, Canada, etc) data.  The computer model is limited in temperature and proof range to that spanned by government standard tables.

## True Proof Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/39/7c/4b/397c4ba1-f63b-78ea-f2d6-aa70c4f88dac/4a3cab8d-c675-4c74-96d5-5170b4f23437_proof65.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/61/87/cb/6187cb74-54e3-0a15-afeb-1080d0ed642c/56120c2a-474e-497a-a6f7-b4a6d562bb9f_gauge65.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/d7/ea/2c/d7ea2c06-36c5-e273-5b5b-c887b5945cf8/b8e3f549-72ca-44c4-aff2-c14a668dffaa_dilute65.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/f9/ad/10/f9ad103e-63b6-9ecf-ff18-8821a631039b/aa644709-04f0-44fb-9536-0e3d57a44ae6_setting65.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/72/b1/a1/72b1a17a-5a8c-3673-a851-5f9f4658f980/8cc4ddc8-4c73-404e-8f65-d095993da586_log65.png/1242x2688.png)

## True Proof Rating Breakdown in United States
- 5 stars: 3 (75%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 1 (25%)






## True Proof Available In
- [United States](https://apptail.io/app/true-proof-xSJf/united-states)
- [Canada](https://apptail.io/app/true-proof-xSJf/canada)
- [France](https://apptail.io/app/true-proof-xSJf/france)
- [Saudi Arabia](https://apptail.io/app/true-proof-xSJf/saudi-arabia)
- [Australia](https://apptail.io/app/true-proof-xSJf/australia)
- [Azerbaijan](https://apptail.io/app/true-proof-xSJf/azerbaijan)
- [Belgium](https://apptail.io/app/true-proof-xSJf/belgium)
- [Bulgaria](https://apptail.io/app/true-proof-xSJf/bulgaria)
- [Brazil](https://apptail.io/app/true-proof-xSJf/brazil)
- [Belarus](https://apptail.io/app/true-proof-xSJf/belarus)
- [Switzerland](https://apptail.io/app/true-proof-xSJf/switzerland)
- [Chile](https://apptail.io/app/true-proof-xSJf/chile)
- [China](https://apptail.io/app/true-proof-xSJf/china)
- [Colombia](https://apptail.io/app/true-proof-xSJf/colombia)
- [Czechia](https://apptail.io/app/true-proof-xSJf/czechia)
- [Germany](https://apptail.io/app/true-proof-xSJf/germany)
- [Denmark](https://apptail.io/app/true-proof-xSJf/denmark)
- [Dominican Republic](https://apptail.io/app/true-proof-xSJf/dominican-republic)
- [Algeria](https://apptail.io/app/true-proof-xSJf/algeria)
- [Ecuador](https://apptail.io/app/true-proof-xSJf/ecuador)
- [Estonia](https://apptail.io/app/true-proof-xSJf/estonia)
- [Egypt](https://apptail.io/app/true-proof-xSJf/egypt)
- [Spain](https://apptail.io/app/true-proof-xSJf/spain)
- [Finland](https://apptail.io/app/true-proof-xSJf/finland)
- [United Kingdom](https://apptail.io/app/true-proof-xSJf/united-kingdom)
- [Greece](https://apptail.io/app/true-proof-xSJf/greece)
- [Hong Kong SAR China](https://apptail.io/app/true-proof-xSJf/hong-kong)
- [Croatia](https://apptail.io/app/true-proof-xSJf/croatia)
- [Hungary](https://apptail.io/app/true-proof-xSJf/hungary)
- [Indonesia](https://apptail.io/app/true-proof-xSJf/indonesia)
- [Ireland](https://apptail.io/app/true-proof-xSJf/ireland)
- [Israel](https://apptail.io/app/true-proof-xSJf/israel)
- [India](https://apptail.io/app/true-proof-xSJf/india)
- [Iceland](https://apptail.io/app/true-proof-xSJf/iceland)
- [Italy](https://apptail.io/app/true-proof-xSJf/italy)
- [South Korea](https://apptail.io/app/true-proof-xSJf/south-korea)
- [Kuwait](https://apptail.io/app/true-proof-xSJf/kuwait)
- [Kazakhstan](https://apptail.io/app/true-proof-xSJf/kazakhstan)
- [Lebanon](https://apptail.io/app/true-proof-xSJf/lebanon)
- [Lithuania](https://apptail.io/app/true-proof-xSJf/lithuania)
- [Luxembourg](https://apptail.io/app/true-proof-xSJf/luxembourg)
- [Mexico](https://apptail.io/app/true-proof-xSJf/mexico)
- [Malaysia](https://apptail.io/app/true-proof-xSJf/malaysia)
- [Nigeria](https://apptail.io/app/true-proof-xSJf/nigeria)
- [Netherlands](https://apptail.io/app/true-proof-xSJf/netherlands)
- [Norway](https://apptail.io/app/true-proof-xSJf/norway)
- [New Zealand](https://apptail.io/app/true-proof-xSJf/new-zealand)
- [Peru](https://apptail.io/app/true-proof-xSJf/peru)
- [Philippines](https://apptail.io/app/true-proof-xSJf/philippines)
- [Pakistan](https://apptail.io/app/true-proof-xSJf/pakistan)
- [Poland](https://apptail.io/app/true-proof-xSJf/poland)
- [Portugal](https://apptail.io/app/true-proof-xSJf/portugal)
- [Romania](https://apptail.io/app/true-proof-xSJf/romania)
- [Russia](https://apptail.io/app/true-proof-xSJf/russia)
- [Sweden](https://apptail.io/app/true-proof-xSJf/sweden)
- [Singapore](https://apptail.io/app/true-proof-xSJf/singapore)
- [Thailand](https://apptail.io/app/true-proof-xSJf/thailand)
- [Türkiye](https://apptail.io/app/true-proof-xSJf/turkey)
- [Taiwan](https://apptail.io/app/true-proof-xSJf/taiwan)
- [Ukraine](https://apptail.io/app/true-proof-xSJf/ukraine)
- [Uzbekistan](https://apptail.io/app/true-proof-xSJf/uzbekistan)
- [Vietnam](https://apptail.io/app/true-proof-xSJf/vietnam)
- [United Arab Emirates](https://apptail.io/app/true-proof-xSJf/united-arab-emirates)
- [South Africa](https://apptail.io/app/true-proof-xSJf/south-africa)
- [Armenia](https://apptail.io/app/true-proof-xSJf/armenia)
- [Argentina](https://apptail.io/app/true-proof-xSJf/argentina)
- [Austria](https://apptail.io/app/true-proof-xSJf/austria)

---

## About AppTail

[AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends.

- [Search Apps](https://apptail.io)
- [Top Charts](https://apptail.io/top-iphone-apps)
- [Sign Up for Full Access](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=footer)

*Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*