# Pool Acid Dose Calc > Calculates precise acid dosage for pool pH and alkalinity adjustment. (iPhone/iPad app by Hasa, Inc..) - Source: https://appshunter.io/ios/app/pool-acid-dose-calc/id711282054 (this page in markdown: same URL + `.md`) - Developer: [Hasa, Inc.](https://appshunter.io/developer/1713193810) - Category: Health & Fitness, Medical - Price: $5.99 - Rating: 3.70/5 from 3 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 10.0 · 2 MB - Languages: American English - Released: 2013-09-26 - Data updated: 2026-07-01 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/pool-acid-dose-calc/id711282054/reviews.md ## What is Pool Acid Dose Calc? Pool Acid Dose Calculator will calculate the exact amount of acid necessary to lower pH and alkalinity in any size swimming pool or spa. No more guessing at the amount of acid or adding acid and retesting the water later to determine the changes to pH and alkalinity. Find out how much acid is needed to lower pH and it will give you the alkalinity after the dose. Use it to find out how much acid is needed to lower alkalinity and know the resulting pH after addition. Find out what an amount of acid will do to pH and alkalinity. Forget Acid Demand water tests and look up tables to determine the acid amount to lower pH. They don't give you the alkalinity after the dose and they are difficult and time consuming. Pool Acid Dose Calculator save you time and money because it gives you the exact amount of acid so you are not under-dosing or over-dosing acid and not having to make corrections. Best of all, you can use it at the pool or spa to get the right amount of acid on-site. Pool Acid Dose Calculator gives acid dose amounts for muriatic (hydrochloric acid), sulfuric acid and dry acid in fl oz, qts, oz and lbs. Also, change from US measurement to metric and get results in ml, L, g and kg. ## Key features - Calculates acid needed to lower pH - Determines alkalinity after acid dose - Calculates acid needed to lower alkalinity - Predicts pH and alkalinity changes from acid - Supports muriatic, sulfuric, and dry acid - Converts between US and metric units ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/pool-acid-dose-calc/id711282054/reviews.md ### 5/5 — It is not working *2022-10-24* When i try to select any of the select the app closes iPhone 13 ### 1/5 — It does not work *2015-05-15* You plug in your numbers and nothing gets calculated. Don’t waste your money on this piece of crap. ## Frequently asked questions about Pool Acid Dose Calc ### What is Pool Acid Dose Calc used for? Pool Acid Dose Calc is used to calculate the exact amount of acid required to lower the pH and alkalinity levels in swimming pools and spas. It helps users avoid guesswork and ensures accurate chemical additions for optimal water balance. ### Does Pool Acid Dose Calc support different types of acid? Yes, Pool Acid Dose Calc supports calculations for muriatic (hydrochloric) acid, sulfuric acid, and dry acid. It provides dosage amounts in various units like fl oz, qts, oz, lbs, ml, L, g, and kg. ### Can Pool Acid Dose Calc convert between measurement systems? Yes, Pool Acid Dose Calc allows users to easily switch between US customary units (fl oz, qts, oz, lbs) and metric units (ml, L, g, kg) for their calculations. ### How accurate is Pool Acid Dose Calc? The app aims to provide exact amounts of acid needed, eliminating the need for retesting after initial additions. This helps prevent under-dosing or over-dosing, saving time and money. ### What devices is Pool Acid Dose Calc available on? Pool Acid Dose Calc is available for iPhone, iPad, and iPod touch devices. It is designed for use on iOS platforms. ### When was Pool Acid Dose Calc last updated? The latest version of Pool Acid Dose Calc was released on October 3, 2017. The app was initially released on September 26, 2013. ### What is the price of Pool Acid Dose Calc? Pool Acid Dose Calc is a paid application, priced at $5.99. There are no in-app purchases or advertisements associated with this app. ### What is the age rating for Pool Acid Dose Calc? Pool Acid Dose Calc has an age rating of 4+. This indicates it is suitable for users aged 4 and older. ## Version history (last 3 releases) ### 1.2 — 2017-10-03 This app has been updated by Apple to display the Apple Watch app icon. Added more filters ### 1.1 — 2017-08-30 Bug Fixes and Improvements ### 1.0 — 2013-09-25 No release notes. ## More apps by Hasa, Inc. - [Pool Chemical Dose Calculator](https://appshunter.io/ios/app/pool-chemical-dose-calculator/id1148385163) - [Orenda](https://appshunter.io/ios/app/orenda/id1171005221) - [pH-Alkalinity Adjustment Tool](https://appshunter.io/ios/app/ph-alkalinity-adjustment-tool/id1527031215) - [HASA water](https://appshunter.io/ios/app/hasa-water/id6473078202) - [Hasa Pro Rewards](https://appshunter.io/ios/app/hasa-pro-rewards/id6751251252) All apps by Hasa, Inc.: https://appshunter.io/developer/1713193810 --- *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 2026-07-01.*