Lyewise

Soap calculator, recipe optimizer, labels and batch tracker.

Privacy Policy

Lyewise: Soap Calculator · Last updated November 6, 2026

Lyewise helps you calculate soap recipes, track batches and supplies, and make ingredient labels. This policy explains what the app does with information.

Data you enter

Your recipes, batches, supplies, prices, notes and photos are stored only on your device in the app's local database. We do not operate servers that receive this data, there are no accounts, and we cannot see your entries.

Data we collect

We do not collect, sell or share personal data. The app contains no analytics SDKs, no advertising and no tracking.

Photos

If you attach a photo to a batch, Lyewise reads only the photo you pick and stores a copy on your device. Photos are never uploaded.

Purchases

Subscriptions and the lifetime purchase are processed by Apple through the App Store. We do not receive your payment details.

Notifications

If you allow notifications, the app schedules local cure reminders on your device. These are not sent through our servers.

Children

The app is not directed to children under 13 and does not knowingly collect information from them.

Safety

Lyewise calculates lye amounts from reference saponification values. Sodium and potassium hydroxide are caustic: wear eye and skin protection, and double-check every recipe before making soap. Labeling requirements differ by country; you are responsible for the labels you use.

Changes

If this policy changes, we will update this page and the date above.

Support & contact

Questions, feedback or a missing oil: arseniiprokaev@gmail.com. We usually reply within 2 business days.

To manage or cancel a subscription, open Settings → your name → Subscriptions on your iPhone.