Membership
Subscription Plans
Every plan includes the full catalogue. Choose the level of access that fits how you read, study and ask.
Explorer
Walk the library. Every dictionary, open shelves.
CA$0free forever
- Browse all 18 dictionaries
- Read every definition and formula
- Ask THARA a few questions each day
- No credit card, no trial clock
Most popular
Scholar
For students and professionals who live in the stacks.
CA$9per month
- Everything in Explorer
- Unlimited THARA conversations
- Saved entries & reading history
- Print-ready reader for study sessions
- Priority support by email
Lifetime Patron
Pay once. Keep the keys to the library for life.
CA$149one-time
- Everything in Scholar, forever
- Founding-patron acknowledgement
- Early access to new dictionaries
- Locked-in pricing against future increases
Online billing is being finalized; choose a paid plan and our team will set up your membership via the contact form.