About SoapDIY-Soap Recipe Calculator
The best calculator for making handmade soap. Enter your oil recipe and instantly get the lye, water, and quality metrics you need. Key features . Instant saponification: solid soap (NaOH) and liquid soap (KOH), by ratio...
The best calculator for making handmade soap. Enter your oil recipe and instantly get the lye, water, and quality metrics you need. Key features . Instant saponification: solid soap (NaOH) and liquid soap (KOH), by ratio or weight . Correct superfat: automatically applied to the lye amount (fixes a common mistake) . Flexible water settings: lye concentration / water-to-lye ratio / % of oils, default 33% . KOH purity: liquid soap auto-converts to the real amount by purity (default 90%) . Quality radar: hardness, cleansing, conditioning, bubbly, creamy - with recommended ranges . 59 built-in oils with verified SAP and fatty-acid data . Custom oils: add your own oils and fatty-acid profiles . Recipe management: save, search, share, export to PDF . Batch log: record each batch with photos and get an automatic cure reminder . Dark mode, Dynamic Type, and an iPad two-column layout Safety Wear goggles and gloves and keep the area ventilated when handling sodium/potassium hydroxide. This app is for calculation reference; always follow proper safety procedures.
Version History Rebuilt entirely in SwiftUI: instant calculation, quality radar, batch log with cure reminders, PDF export, and iPad layout — plus corrected superfat math and oil data. 5.0 13h ago Fixed some issue on dark mode 2.3 05/16/2022 Support iOS 15 2.2 03/21/2022 This update from Apple will improve the functionality of this app. No new features are included. 1. Support iPhone X 2. Provide two ways to make up your recipe. 2.1 07/06/2018 What's New 1. Support iOS8 2. Add Simplified Chinese Language 2.0 05/29/2015 更新： 修正再最新版的系統下無法執行的問題 What's new Fixed the bug for can not running on the newest operation system. 1.2 10/31/2011 更新內容： 1. 新增液體皂的計算（氫氧化鉀、水量） 2. 新增數種油品種類 3. 可將計算結果或配方資料庫中的某一個配方透過電子郵件寄給你的朋友們！ 4. 新增簡易的手工皂製作教學說明 What's New 1. Support liquid soap calculating ( KOH, Water ) 2. Add several oils data 3. Support e-mail recipe to your friends 4. Add simple teaching guide to help you making soap. V1.1 09/21/2011 V1.0 07/12/2011
Previous Versions
Here you can find the changelog of SoapDIY-Soap Recipe Calculator since it was posted on our website on 2016-11-02 21:17:09.
The latest version is 5.0 and it was updated on 2026-06-12 08:37:55. See below the changes in each version.
SoapDIY-Soap Recipe Calculator version 5.0
Updated At: 2026-06-10
Changes: Version History Rebuilt entirely in SwiftUI: instant calculation, quality radar, batch log with cure reminders, PDF export, and iPad layout — plus corrected superfat math and oil data. 5.0 13h ago Fixed some issue on dark mode 2.3 05/16/2022 Support iOS 15 2.2 03/21/2022 This update from Apple will improve the functionality of this app. No new features are included.
1. Support iPhone X
2. Provide two ways to make up your recipe. 2.1 07/06/2018 What's New
1. Support iOS8
2. Add Simplified Chinese Language 2.0 05/29/2015 更新：
修正再最新版的系統下無法執行的問題
What's new
Fixed the bug for can not running on the newest operation system. 1.2 10/31/2011 更新內容：
1. 新增液體皂的計算（氫氧化鉀、水量）
2. 新增數種油品種類
3. 可將計算結果或配方資料庫中的某一個配方透過電子郵件寄給你的朋友們！
4. 新增簡易的手工皂製作教學說明
What's New
1. Support liquid soap calculating ( KOH, Water )
2. Add several oils data
3. Support e-mail recipe to your friends
4. Add simple teaching guide to help you making soap. V1.1 09/21/2011 V1.0 07/12/2011
SoapDIY-Soap Recipe Calculator version 2.3
Updated At: 2022-05-16
Changes: May 16, 2022 Version 2.3
Fixed some issue on dark mode
SoapDIY-Soap Recipe Calculator version 2.2
Updated At: 2022-03-21
Changes: Mar 21, 2022 Version 2.2
Support iOS 15
SoapDIY-Soap Recipe Calculator version 2.1
Updated At: 2018-07-06
Changes: Jul 6, 2018 Version 2.1
This app has been updated by Apple to use the latest Apple signing certificate.
1. Support iPhone X
2. Provide two ways to make up your recipe.
SoapDIY-Soap Recipe Calculator version 2.1
Updated At: 2018-07-06
Changes: Jul 6, 2018 Version 2.1
1. Support iPhone X
2. Provide two ways to make up your recipe.
SoapDIY-Soap Recipe Calculator version 2.1
Updated At: 2018-07-06
Changes: 6 Jul 2018 Version 2.1
1. Support iPhone X
2. Provide two ways to make up your recipe.
SoapDIY-Soap Recipe Calculator version 2.1
Updated At: 2018-07-06
Changes: Jul 6, 2018 Version 2.1
This app has been updated by Apple to display the Apple Watch app icon.
1. Support iPhone X
2. Provide two ways to make up your recipe.
SoapDIY-Soap Recipe Calculator version 2.0
Updated At: 2011-07-12
SoapDIY-Soap Recipe Calculator version 2.1
Updated At: 1970-01-01
Changes: 2018年7月6日 Version 2.1
1. Support iPhone X
2. Provide two ways to make up your recipe.
SoapDIY-Soap Recipe Calculator version 2.1
Updated At: 1970-01-01
Changes: 6 de jul. de 2018 Version 2.1
1. Support iPhone X
2. Provide two ways to make up your recipe.
Disclaimer
Official App Store Link
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