Soaper - Soap Calculator

Soaper - Soap Calculator

Soap Recipe Calculator

3 ratings
1 review
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • February 24, 2026
  • July 7, 2026

Features

Soaper - Soap Calculator video #1 for iPhone
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Soaper - Soap Calculator screenshot #7 for iPhone
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About

Simplify soap making with instant lye calculations and real-time quality metric updates. Features a blend lab for oil experimentation, guided batch tracking, and inventory management. Avoid manual math and spreadsheets for better soap creation.

Automatic lye calculations
10 quality metrics
Extensive oil and fragrance database
Blend Lab for oil optimization
Guided and advanced batch tracking
Inventory management
Shopping list generation
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What's New in Soaper

1.4.0

July 7, 2026

Your inventory now tells the whole story of every purchase. Tap any ingredient to open its new detail screen: see your total on hand, what your stock is actually worth (valued by what you paid for each purchase), and a clear list of every purchase — each with its own brand, price, currency, and date. The oldest purchase is marked “Used next,” so you always know what gets used first, and you can see which batches drew from a given purchase. Buying in more than one currency? Soaper now records each purchase in the currency you paid and keeps your totals honest — grouped by currency, with no hidden conversions. New: Adjust stock. Correcting an amount now tells you exactly what it does — record a correction, or draw down your oldest purchases — instead of changing things behind the scenes. Add a purchase any time you buy more, even the same ingredient at a different price, and Soaper keeps it all straight. Plus refinements throughout. Thanks for being part of the Soaper community.

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Subscription plans

Soaper Premium

Ad-free with inventory tracking and guided batches!

$2.991 Month
How to cancel Soaper subscription ⁉️
1

In-App Purchases

$79.99

Soaper Premium — Lifetime

Every Premium feature. One-time purchase.

User reviews

Fantastic App!!!

I just started making soap last month. I cannot even begin to know how to use soapcalc. This made the process of creating a soap recipe easy and fun. With the added inventory function, I’ll be able to track everything I use.

Response from developer

Thank you so much! I’m so glad you love it!

FAQ

Does Soaper have ads?

Yes, Soaper contains advertisements. The app is free to download and use, with optional premium features available for purchase.

What are the premium features in Soaper?

Soaper Premium unlocks guided batch flows, inventory management, shopping lists, and supplier tracking. A 2-month free trial is available for annual plans.

How accurate are Soaper's calculations?

Soaper provides automatic lye calculations for NaOH and KOH, and tracks 10 quality metrics like hardness and gentleness. It uses over 180 oils with complete fatty acid profiles and saponification values.

Can Soaper help me if I'm new to soap making?

Yes, Soaper offers a Beginner Mode with a 7-phase guided workflow that explains each step of the soap making process, including safety setup and lye mixing.

What devices is Soaper available on?

Soaper is available on iPhone, iPad, and Apple Watch, allowing you to manage your soap making on multiple devices.

How often is Soaper updated?

The latest version of Soaper is 1.1.2, last updated on March 19, 2026. Updates typically include new features and bug fixes.

What are the quality metrics Soaper calculates?

Soaper calculates 10 quality metrics including Oil Balance Score, Foam Speed, Skin Gentleness, Fluffy Lather, Creamy Lather, Set Speed, Bar Longevity, Cure Time, Lather Stability, and Shelf Life Risk.

How does Soaper handle inventory management?

Soaper allows you to track on-hand quantities for all ingredients, receive low-stock alerts, and automatically deduct ingredients when you start a batch, eliminating manual math.