SoapCraft: Soap Calculator
Lye, Batch & Recipe Maker
About
This app helps you calculate and manage soap recipes for cold process, hot process, and liquid soapmaking. It provides clear lye numbers, allows oil entry by weight or percentage, and offers various water methods for precise calculations. Save, scale, and share your creations with ease.
What's New in SoapCraft
1.2
September 26, 2026
SoapCraft now speaks Japanese, Korean, German, and Simplified Chinese. Plus a smoother Pro upgrade screen and bug fixes.
Subscriptions & In-App Purchases
SoapCraft Pro Monthly
Unlimited recipes, custom oils, recipe profiles, cure…
Developer apps
FAQ
What types of soap recipes can SoapCraft calculate?
SoapCraft can calculate recipes for cold process, hot process, and KOH liquid soapmaking. It allows you to enter oils by percentage or weight and choose your preferred water method for accurate lye calculations.
How many recipes can I save in SoapCraft?
The free version of SoapCraft allows you to save up to three recipes with notes and favorites. For unlimited saved recipes and duplication, you can upgrade to SoapCraft Pro.
What are the benefits of SoapCraft Pro?
SoapCraft Pro offers unlimited saved recipes, the ability to add custom oils with your own SAP values, view complete recipe quality profiles, and follow Make mode checklists. It also allows you to track cure dates and export polished recipe sheets as image or PDF.
Does SoapCraft have ads?
No, SoapCraft does not contain advertisements. The app is free to use with optional in-app purchases for premium features.
What are the subscription options for SoapCraft Pro?
SoapCraft Pro is available through weekly ($0.99/P7D), monthly ($1.99/P1M), and annual ($14.99/P1Y) subscription plans. These plans unlock unlimited recipe saving and advanced features.
Can I add my own custom oils to SoapCraft?
Yes, the Pro version of SoapCraft allows you to add custom oils with your own SAP values. This feature is not available in the free version.
How does SoapCraft help with recipe organization?
SoapCraft allows you to save recipes with notes and mark favorites. You can also duplicate existing recipes and resize batches, making it easy to manage your soapmaking creations.
What safety information does SoapCraft provide?
SoapCraft includes beginner-friendly warnings for missing oils, unusual superfat, and invalid totals. It also provides water-equivalent cross-checks for better understanding. However, it does not certify recipe safety or make medical claims, and users should always follow lye handling safety practices.
