Frequently Asked Questions

Click "Get Started" in the navigation bar or visit /register. Enter your email and choose a password — no credit card required for a free account. You'll have immediate access to browse all terpenes and read educational content.

Yes. The free tier gives you full access to the terpene library and educational articles. Flashcards, quizzes, progress tracking, and advanced analytics require a Pro subscription at $4.99/month or $29.99/year.

Not at all. Terpenes App is designed for anyone curious about aromatic plants, whether you come from fragrance, culinary, aromatherapy, wine, coffee, or simply a love of how the natural world smells and tastes. Each terpene profile starts with plain-language explanations before moving into scientific detail, so complete beginners and seasoned professionals can both work at the level that suits them.

Yes. Our Flavor Guide and terpene library are built around the chemistry that underlies scent and taste across every aromatic plant. Perfumers use the app to build accord vocabulary and identify natural materials; sommeliers use it to recognize varietal terpene signatures; culinary professionals use it to understand how herbs, spices, and citrus contribute characteristic notes. If you work with aromatic plants, the core science applies.

Our flashcard system uses a spaced repetition algorithm that tracks your performance on each card. Terpenes you find difficult are shown more frequently; ones you've mastered appear less often. This scientifically-backed method is proven to improve long-term memory retention by up to 200% compared to traditional study methods.

We currently cover 50+ terpenes across six categories: Citrus, Earthy, Floral, Herbal, Hoppy, and Spicy. Each profile includes aroma, flavor, boiling point, and effects data. We add new terpenes regularly based on community requests and emerging research.

Yes. Your dashboard shows terpenes learned, cards due today, learning streak, quiz average, and a weekly progress chart. Pro subscribers get detailed analytics including category breakdowns and long-term retention curves.

Pro is $4.99/month or $29.99/year (save 50% with annual billing). You get full access to all flashcards, quizzes, notes, progress analytics, and priority support. A 7-day free trial is available for new subscribers.

Yes, you can cancel at any time from your Profile page under Subscription. Your Pro access continues until the end of the current billing period. We don't offer prorated refunds for partial months.

All your personal data — including flashcard progress, quiz history, notes, and favorites — is permanently deleted within 30 days of account deletion. We retain anonymized, aggregated usage data that cannot be linked back to you.

Terpenes App works on any modern browser — Chrome, Firefox, Safari, and Edge on desktop and mobile. We recommend Chrome or Safari for the best experience. No native app is required; the site is fully responsive.

Try clearing your browser cache and reloading. If the issue persists, check your internet connection or try a different browser. If you're still experiencing slowness, contact us at support@terpenesapp.com with your device and browser details.

All terpene profiles are sourced from peer-reviewed scientific literature and reviewed by a cross-disciplinary advisory group that includes botanical chemists, aromatherapy educators, and flavor professionals. Boiling points, chemical structures, and organoleptic descriptors are cross-referenced across multiple sources. We update content when new research is published.

Yes! Use the Contact page to submit suggestions or corrections. Include the terpene name, the issue, and your source if possible. Our team reviews all submissions and credits contributors in our changelog.