Calculate84 vs Extended Esthetics

Graphing made for iPhone Calculate84 brings the graphing calculator experience to iPhone with a fast, touch-friendly design. What you can do: • Plot and explore graphs with smooth touch controls • Find familiar calculator functions quickly • Scroll naturally through equations and results • Get clearer, more helpful error messages • Send feedback directly from the app Why we built Calculate84 We relied on graphing calculators ourselves and wanted an app that felt easier to use on a modern phone. Before launch, we worked with students to refine the experience, and we continue improving it based on user feedback. Send feedback Tap the red Feedback button in the app. Terms of Use (EULA): https://calculate84.com/terms-of-use

Master the art of the luxury facial — a complete, self-paced professional training program built for estheticians, spa professionals, and skincare enthusiasts who want to deliver (or simply understand) a truly elevated facial experience. WHAT'S INSIDE Extended is structured as nine core modules plus a specialist bonus module, each following one clear path: Read, Reflect, Practice, Quiz, Resources, Complete. 1. The Luxury Experience Philosophy 2. Skin Analysis & Consultation 3. Product Knowledge 4. The Core Luxury Facial Protocol 5. Luxury Massage Techniques 6. Advanced Add-Ons & Upgrades 7. Building Your Luxury Facial Menu 8. Marketing Your Skills Plus a bonus module: Protocols for Specific Skin Concerns LEARN BY DOING Every module pairs real instructional content with reflection prompts, hands-on practice tasks, and a knowledge-check quiz — not just passive reading. 49 downloadable resources (checklists, reference guides, templates, worksheets) go with you into the treatment room. A CERTIFICATE THAT MEANS SOMETHING Complete every module and unlock a personalized Certificate of Completion — proof of a real, structured education in luxury facial technique, not just a login. ONE PURCHASE. NO SUBSCRIPTION. Extended is a single one-time purchase for lifetime access to the full course and all resources. No recurring fees, no paywalled modules waiting behind a monthly plan. Whether you're a working esthetician looking to raise your service menu, a spa owner training new staff, or simply passionate about the craft of skincare, Extended gives you a complete, professional-grade education you can move through at your own pace — and return to any time.