Soap Recipe & Lye Calculator
iOS app by Ralf Pitter. Utilities · Ralf Pitter
- Store rating
- 0 / 5
- Store rating count
- 0
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.0.0
- Listing last refreshed
- 2026-09-11
View the original store listing
Store description excerpt
Make soap with confidence. Soap Recipe & Lye Calculator does the one calculation every batch depends on — the exact lye — and shows you how the finished bar will turn out, before you pour. Add your oils and butters, and instantly see: • Precise lye (NaOH) and water for your batch, with your superfat and water settings • A live quality readout — hardness, cleansing, conditioning, bubbly & creamy lather, plus iodine and INS — so you can balance a recipe before you make it • Everything in grams, ounces, or percentages, with a library of 50 oils and butters Go further with a one-time Pro unlock: • Liquid soap (KOH) mode with lye purity • Fragrance & essential-oil calculator • Save and name unlimited recipes, with notes • Resize any batch to your mold • Export a clean, printable recipe sheet (PDF) to save or share Why makers like it: • Fast, beautiful, and works 100% offline — your recipes stay on your device • Trustworthy oil data, aligned to established soapmaking references (see Data & Sources) • One-time purchase. No subscription, no account, no clutter. SAFETY: Lye is caustic. Always wear gloves and eye protection, add lye to water (never water to lye), and make a small test batch — SAP values vary by oil source. This app is a formulation aid; safe handling is your responsibility.
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