Soap Making Calculator -Soapie
Lye Calculator, Batch Tracker
About
This app helps soap makers precisely calculate lye and oil ratios, build recipes, track batches through curing, and monitor costs. It works offline, keeping your data private on your device.
What's New in Soap Making Calculator
1.2.0
April 15, 2026
Improved lye and water calculations with better precision across all three water methods. Minor UI fixes for onboarding selection state.
Subscription plans
SoapApp Pro
Unlimited recipes, batches, inventory & more
Developer apps
FAQ
How does Soapie calculate lye and oils?
Soapie uses a database of 172 oils with verified SAP values to precisely calculate lye and oil ratios. It supports NaOH, KOH, and hybrid lye blends, with adjustable purity and multiple water calculation methods.
Can I build and save recipes in Soapie?
Yes, Soapie features a recipe builder where you can create recipes by percentage or weight. You can set soap type, process method, superfat, and batch size, and save, duplicate, or version your recipes.
Does Soapie work offline?
Yes, Soapie is designed to work completely offline. All your recipes, batch data, and inventory are stored on your device, and no internet connection is required for any feature.
How does Soapie help track my soap batches?
Soapie offers a step-by-step make mode with real-time deviation tracking for weighing ingredients. It also includes cure tracking with automatic countdowns and ready-date estimates, allowing you to monitor batches with notes and photos.
What information does Soapie provide about cost?
Soapie calculates your actual cost per batch and cost per bar by linking ingredients to your inventory with purchase prices. It uses FIFO consumption to determine costs, eliminating the need for external spreadsheets.
Can I manage my soap making supplies with Soapie?
Yes, Soapie includes an inventory and supplier tracking feature. You can monitor oils, butters, lye, fragrances, and additives, including supplier information, purchase lots, and stock levels.
How can I share or export my recipes from Soapie?
Soapie allows you to export recipes as PDF files or share them instantly via QR code. It also offers OCR functionality to import recipes from photos.
Is Soapie suitable for beginners or experienced soap makers?
Soapie is built for all levels of soap makers, from beginners to experienced artisans. Its precise calculations, step-by-step guidance, and comprehensive tracking features cater to a wide range of needs.