Lyestone
Verktyg
Gratis · Designad för iPad. Inte verifierad för macOS.
Lyestone is a soap maker's lye calculator that lives on your phone, not behind a paywall and a slow website.
Pick the fats in your recipe and enter their grams. Set your superfat and water. Lyestone computes - in real time, as you slide - the exact grams of sodium hydroxide (NaOH) for a bar soap, or potassium hydroxide (KOH) for a liquid soap. Same recipe, both lye types, one tap to switch.
WHAT'S BUNDLED
• 43 saponifiable fats, ready out of the box - olive, coconut (76 and 92 degree), palm, palm kernel, lard, tallow, castor, shea, cocoa butter, mango butter, kokum, hemp, sweet almond, avocado, jojoba (treated correctly as a wax), babassu, sunflower, rice bran, sesame, neem, soybean, peanut, walnut, hazelnut, apricot kernel, grapeseed, evening primrose, argan, abyssinian, tamanu, meadowfoam, andiroba, rosehip, borage, pumpkin seed, marula, baobab, camelina, perilla, poppy seed, pomegranate, and beeswax.
• SAP values for both NaOH and KOH, cross-checked against canonical references (SoapCalc, ModernSoapmaking.com, the Handcrafted Soap & Cosmetic Guild table).
• Per-recipe quality scores - hardness, cleansing, conditioning, bubbly, creamy - with a visible target band so you can tell at a glance whether your recipe is balanced.
• Iodine value (DOS risk) and INS, the two most-cited stability numbers.
• Quality warnings drawn from the literature: low conditioning, high cleansing, coconut-group dominance, wax-trace acceleration, KOH-superfat advisories, and more. Lyestone will tell you why your recipe is going to dry skin - before you pour it.
PROFESSIONAL FEATURES
• Lye concentration mode (master-batchers, soap-soaping by-the-spreadsheet types) - pin lye as a percentage of total solution instead of water-as-percentage-of-oils. 33% is one tap away.
• Fragrance load in oz/lb of oils → grams. Salt addition. Milk-soap flag with a reminder to freeze the milk.
• Markdown / CSV share - drop the calculation into your woodshop notebook, Reminders, or Messages with a single tap.
• Per-fat detail cards: SAP values, contribution scores, iodine, INS, plus a one-line note on how the fat behaves in a bar.
DESIGN PROMISE
No accounts. No analytics. No internet. No ads. Lyestone is a one-time $0.99 purchase - no subscriptions, no tiers, no unlocks. The app works the same on your phone, your iPad on the workbench, and the iPad locked in the woodshop.
SAFETY
Sodium and potassium hydroxide are highly caustic. Always wear gloves and goggles. Add lye to water (not water to lye). Lyestone is a hobbyist reference - consult primary sources and a soap-making mentor before scaling production.
Betyg och recensioner
- Det visas ingen översikt eftersom den här appen inte har fått tillräckligt många betyg eller recensioner.
Utvecklaren Robert Corbin har meddelat att appens integritetspraxis kan omfatta hantering av data enligt beskrivningen nedan. Mer information finns i utvecklarens integritetspolicy .
Data samlas inte in
Utvecklaren samlar inte in några data från den här appen.
Hjälpmedel
Utvecklaren har ännu inte uppgett vilka hjälpmedelsfunktioner som den här appen stöder. Läs mer
Information
- Storlek
- 2,9 MB
- Kategori
- Verktyg
- Kompatibilitet
Kräver iOS 17.0 eller senare.
- iPhone
Kräver iOS 17.0 eller senare. - iPad
Kräver iPadOS 17.0 eller senare. - Mac
Kräver macOS 14.0 eller senare och en Mac med Apple M1‑chip eller senare. - Apple Vision
Kräver visionOS 1.0 eller senare.
- iPhone
- Språk
- engelska
- Ålder
4+
- 4+
- Leverantör
Robert Corbin
- Robert Corbin har inte identifierat sig som en näringsidkare för den här appen. Om du är en konsument i det Europeiska ekonomiska samarbetsområdet (EES) gäller inte konsumenträttigheter för avtal mellan dig och leverantören.
- Copyright
- © 2026 Robert Corbin