Ostrol has three paid tiers on top of a free account. Current prices live on the pricing page — this article explains what's in each one so you can choose.
Free
Where every new account starts. No credit card.
- 2 solves per month
- Export to PDF, PNG, or LaTeX
- Public share links
Unused solves don't carry over, and free accounts never expire.
Mini
Billed weekly — built for the week before an exam.
- Unlimited solves
- Full solve library
- Priority help
- Auto-renews weekly; cancel anytime
Mini is the same product as Pro on a shorter cycle. Pick it when you need Ostrol for a stretch rather than a whole course.
Pro
The same features as Mini, billed monthly or yearly.
- Unlimited solves
- Full solve library
- Priority help
- Auto-renews monthly, or yearly — the yearly cycle costs two months less than paying month to month
Best if you're working through a full course.
Enterprise
For schools, tutoring centers, and teams.
- Unlimited solves per seat
- Admin console
- Per-class analytics
- Per-seat pricing
- Custom branding (details)
- Class rosters and assignments — see Creating a class and Inviting students
Enterprise is quoted per organization: sign up your school or email sales@ostrol.com.
Switching plans
Upgrade any time at /account/billing. The new tier takes effect immediately and we prorate the cost. Downgrades take effect at the end of the billing period you've already paid for.
If you need to cancel, see Cancelling your subscription.
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