Formulair

Formulair is a formulation app built by Lux & Terra, an independent London perfumery whose founder began sharing their own perfumery learning journey on YouTube before developing the tool for their own use. Wayback Machine archives show the app's website already live by August 2021, consistent with the developer's own account of building it to stop wasting time on the administrative side of formulating rather than the creative side. It runs natively on iOS, iPadOS, macOS and visionOS rather than as a web app, which keeps it fast and offline-capable but means there is no Android or Windows version.

The app is aimed squarely at hobbyist and apprentice perfumers rather than professional labs running dedicated industry formulation suites. Its core job is arithmetic: it holds a raw-materials library with supplier, cost and IFRA limit data, lets a user build a formula and scale it up or down automatically, tracks dilutions, and renders a fragrance pyramid split across five substantivity levels so a user can see how top, heart and base materials sit against each other. Formulas and libraries can be exported as PDF, markdown or TSV files, and Apple's iCloud container is used for storage and sync, which the developer positions as a privacy point since no third-party server holds the data.

Real-world adoption is visible rather than just claimed: as of research, the app sits at 4.8 out of 5 stars on Apple's App Store from 186 ratings, has been discussed as a dedicated topic on the Basenotes perfumery forum, and independent reviewers and users (including at least one working candle and fragrance maker) have credited it with replacing spreadsheet-based formula tracking. A free tier caps a user at 25 raw materials and 25 formulas, with a one-time in-app purchase (listed at $39.99 on the US App Store) unlocking unlimited use; at least one independent review has also flagged that the amount of manual data entry required before a first formula is usable can be a barrier for a newcomer just wanting to experiment.