SoapCraft: Soap Calculator
Lye, Batch & Recipe Maker
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Fast lye math for cold process, hot process, and liquid soap, with free text sharing and optional Pro recipe profiles, cure tracking, and polished exports.
Calculate cold process, hot process, and liquid soap recipes in seconds — no cluttered workshop suite, just clear lye numbers.
Enter oils by weight or percentage, pick your water method, and get NaOH or KOH totals instantly.
Save, scale, and share every recipe from one focused calculator.
Build cold process, hot process, or KOH liquid soap recipes, choose your water method, check the lye amount, then save, scale, copy, and share recipes from one focused app.
FREE FEATURES
- Calculate NaOH and KOH soap recipes
- Enter oils by percentage or weight
- Use grams, ounces, or pounds
- Choose lye concentration, water:lye ratio, or water as % of oils
- Review lye, water, oil, fragrance, additive, and batch totals
- See water-equivalent cross-checks so settings are easier to understand
- Save up to three recipes with notes and favorites
- Copy and share plain text recipe summaries
- Duplicate recipes and resize batches while staying within the free recipe limit
- Read beginner-friendly warnings for missing oils, unusual superfat, and invalid totals
PRO FEATURES
- Unlimited saved recipes and recipe duplication
- Add custom oils with your own SAP values
- View complete recipe quality profiles when oil data is available
- Follow Make mode checklists while you work
- Track cure dates and ready batches
- Export polished recipe sheets as image or PDF
SoapCraft is a calculator and recipe organizer. It does not certify recipe safety or make medical or skin-care claims. Always follow appropriate lye handling and soapmaking safety practices.
Terms of Use: https://www.cong-le.com/terms.html
Privacy Policy: https://www.cong-le.com/privacy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
We've made improvements and fixed bugs to make the app better for you.
The developer, Cong Le, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Cong Le
- Size
- 10.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- SoapCraft Pro Lifetime $24.99
- SoapCraft Pro Annual $14.99
- SoapCraft Pro Weekly $0.99
- SoapCraft Pro Monthly $1.99
- Copyright
- © 2026 Cong Le