# Soaper - Soap Calculator — Soap Recipe Calculator > Soap recipe calculator with quality metrics, blend lab, batch tracking, and inventory. (iPhone/iPad app by James Braaten II.) - Source: https://appshunter.io/ios/app/soaper-soap-calculator/id6752423466 (this page in markdown: same URL + `.md`) - Developer: [James Braaten II](https://appshunter.io/developer/489982814) - Category: Lifestyle - Price: Free with in-app purchases - Rating: 5.00/5 from 4 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 18.2 · 70 MB - Languages: American English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French (France), German (Germany) and 23 more - Released: 2026-02-24 - Data updated: 2026-09-07 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/soaper-soap-calculator/id6752423466/reviews.md ## What is Soaper? Soaper turns soap recipe math into tap-and-go simplicity — now on iPhone and iPad. Enter your oils, see instant lye calculations, and watch 10 quality metrics update in real time. No spreadsheets. No guessing. Just better soap. Built on soap chemistry first principles. Fully translated into 34 languages. — WHAT YOU GET Automatic lye calculations for NaOH (bar) and KOH (liquid) soap 10 quality metrics: hardness, lather type, gentleness, cure time, shelf life risk, and more Auto Additives, Colorants and Fragrances — starting amounts scaled to your batch weight, with a tap to see where each number comes from Fragrance safety warnings that flag blends pushing past skin-safe levels Photos and documents — attach recipe shots, oil safety sheets, and supplier invoices to any item in your library 80+ oils with complete fatty acid profiles and saponification values 33 fragrances, 31 colorants, and 117 additives in the database Three water calculation methods to match your preferred technique Superfat control from 0% to whatever you like — BLEND LAB Not sure which oils to use? Blend Lab shows you. Add oils and watch quality bars move in real time. Filter by chemistry—find oils that boost lather, improve hardness, or extend shelf life. Soaper suggests swaps to hit your target metrics without trial and error. — BATCH TRACKING Recipes are just the start. Soaper tracks your actual soap making across three process types: Cold Process, Hot Process, and Liquid Soap (KOH). Each has process-specific phases, timers, and educational content. Beginner Mode: Step-by-step guided workflow with educational prompts. Advanced Mode: Streamlined flow for experienced makers with condensed steps, timers, and batch notes. Both modes include timers with notifications — step away and the app tells you when to come back. Track active batches, monitor cure progress, and log notes and photos. — INVENTORY & SHOPPING Know what you have. Know what you need. Track on-hand quantities for every ingredient. Get low-stock alerts. Recipe availability shows which recipes you can make right now. The shopping list groups items by supplier with contact info and pricing notes. Start a batch and ingredients deduct automatically. No manual math. — QUALITY METRICS EXPLAINED Soaper calculates 10 properties for every recipe: Oil Balance — saturated vs unsaturated ratio Foam Speed — how quickly lather forms Skin Gentleness — moisturizing and conditioning Fluffy Lather — big, airy bubbles Creamy Lather — dense, stable foam Set Speed — how fast the bar hardens Bar Longevity — how long it lasts in the shower Cure Time — estimated weeks until ready (4 weeks to 12 months depending on oils) Lather Stability — bubble longevity from castor oil Shelf Life Risk — DOS/rancidity warning for high-linoleic blends — FREE VS PREMIUM Free: Unlimited recipes, all 10 quality metrics, Blend Lab optimization, PDF export. Premium (monthly, annual, or one-time lifetime): Guided batch flows, inventory management, shopping lists, supplier tracking, recipe cost estimates, ad-free. Annual plans include a 2-month free trial for new subscribers. — BUILT FOR SOAP MAKERS Whether your first batch or your five hundredth, the chemistry stays consistent and the math stays invisible. ## Key features - 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 ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Soaper Premium | $2.99 | per month | | Soaper Premium | $19.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Soaper Premium — Lifetime | $79.99 | one-time | ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/soaper-soap-calculator/id6752423466/reviews.md ### 5/5 — Thorough and easy to use *2026-08-17* Great for beginners! **Developer response:** Thank you for loving my app! ### 5/5 — Fantastic App!!! *2026-02-28* 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. **Developer response:** Thank you so much! I’m so glad you love it! ## Frequently asked questions about Soaper ### 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. ## Version history (last 5 releases) ### 1.6.2 — 2026-09-04 Foaming hand soap, solved. • A new foaming dispenser preset works out the dilution for YOUR recipe instead of a generic ratio, and tells you if a thickener is in the mix. • Add your own water alternatives — milk, tea, coffee, beer — and edit or delete them like any other ingredient. • A safety reminder now sits on the welcome screen where it belongs. Plus performance, iPad layout and stability fixes throughout. ### 1.6.1 — 2026-08-28 Faster and steadier. Recipes open and scroll a lot more smoothly now, especially in bigger libraries and in recipes built from your own supplier ingredients. If the app has felt sluggish or got stuck on you, that should be much better. Your recipe list remembers its filter. Set it to Favorites or Low Stock, leave the app, come back tomorrow — it's still there. Low Stock now agrees with the count in the header. Shortages tell you the numbers — "Need 340 g · have 57 g" — so you know whether it's a quick top-up or a supply run. Plus stability fixes throughout. As always, thank you for the notes and bug reports. ### 1.6.0 — 2026-08-19 Your recipes just came to life. New: living lather. Recipe cards now show your soap's lather in motion — real, animated bubbles driven by the recipe's actual chemistry. Coconut-heavy recipes foam up big and lively, butter-rich ones build a dense, creamy foam, and castor steadies it all. It's your fatty-acid profile, brought to life — easy on the battery, and you can turn it off in Settings any time. New: Quick Batch. For the soaps you make on repeat: record a batch and deduct your inventory in one tap, without stepping through the full batch flow. You see exactly what will be deducted before you confirm — and if stock runs short, Soaper tells you instead of taking half. Make the built-in ingredients your own. You can now edit Soaper's included oils, fragrances, colorants, additives and water alternatives — and every calculation, PDF and Blend Lab result uses your values. For liquid soap makers: suggested fragrance and additive amounts are now based on your finished, diluted soap — with a dilution ratio you can set right on the recipe. Plus a deep round of polish: weights everywhere now follow your unit choice, decimal commas work wherever you type numbers, translation fixes landed across all 34 languages, and your data is protected by an even stronger automatic recovery system. Thanks for being part of the Soaper community. ### 1.5.0 — 2026-07-28 Every recipe, sized to the mold in your hands. New: Molds. Pick from a library of popular molds or save your own, and Soaper resizes your recipe's oils to fill it — no math, no guesswork. Capacities come from real, sourced measurements, and you decide how much room to leave for a tall swirled top. Your mold then rides along with the recipe, so you always know what you're pouring into. Deleted a recipe, batch, ingredient, or blend by mistake? It now waits 30 days for you in Settings, under Data Management. Restore it in a tap — one item, or all of them at once. Now you can add video to your batches. Capture the trace, the pour, or the first cut and keep it right alongside your photos and notes, so every batch tells its full story. Water alternatives get their own library. Browse milks, teas, coffees and more, each with its prep and substitution notes, right where you'd expect to find them. Plus a more reliable release: we strengthened stability across the app and polished countless details throughout. Thanks for being part of the Soaper community. ### 1.4.0 — 2026-07-07 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. ## Related topics [soaper](https://appshunter.io/ios/topics/soaper) · [the formulator home lab](https://appshunter.io/ios/topics/the-formulator-home-lab) · [soap calculator](https://appshunter.io/ios/topics/soap-calculator) · [handmade soap calculator](https://appshunter.io/ios/topics/handmade-soap-calculator) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*