Version 2.1 · Effective 22 August 2026
By using Vernabla you agree to these terms. Please read them carefully.
Vernabla is a flashcard and spaced repetition learning tool available via web browser. We reserve the right to modify or discontinue the service at any time with reasonable notice.
Price changes. We may change the price of a plan. If a change increases what you pay, we will tell you by email at least 30 days before it applies to you, so that you can cancel before it takes effect. A billing period you have already paid for is never repriced partway through.
What the free tier includes. The free tier gives you a set number of cards, a single deck, and a set number of AI-generated stories. These are one-time allowances for the life of the account, not monthly ones: once you have used them they do not refill, and the way to get more is to subscribe. The exact figures are shown on the upgrade screen. Everything that does not depend on AI keeps working without limit and without end — in particular you can go on reviewing the cards you have made, and using the semantic map they form, for as long as you have the account, whether or not you ever subscribe. Stories are the exception, and are meant to be read once: we do not store them, so closing one does not keep it, and producing it again uses another of your allowance. If you subscribe and later cancel, we do not delete anything you created; you keep access to it, and the free allowances govern only what you can add.
Pro is metered too. The AI features cost us money for every request, so the paid plan carries limits of its own: an allowance for each day and for each month, and a cap on how many requests you can make in a short burst. They are set high enough that ordinary study does not reach them, and they exist so that a single account cannot exhaust the capacity everyone shares. Pro is therefore not unmetered, and we do not describe it as unlimited. These allowances do reset — daily and monthly — and, as on the free tier, reviewing your cards keeps working meanwhile. Where a limit stops something from finishing, the app says so, though it will not always be able to tell you which limit was responsible. We may adjust these limits; if we materially reduce them for a plan you are paying for, we will give you reasonable notice by email and you may cancel.
Payments are final. We do not provide refunds or credits for a billing period that has already begun, including partially used periods. You can cancel at any time to prevent further charges, as described in Section 3.
If you are a consumer in the EU or UK, you normally have 14 days to withdraw from a purchase of digital content. Because we give you full access immediately, we ask you at checkout to (a) expressly request that we begin providing the subscription straight away, and (b) acknowledge that you therefore lose that 14-day right of withdrawal. We keep a record of that acknowledgement. If you did not give it, the 14-day right still applies to you and this Section does not take it away.
Nothing here limits a refund right you have under consumer law that cannot be waived by agreement.
You agree not to misuse the Service. In particular, do not attempt to gain unauthorised access to the Service or to anyone else's account, distribute malware, work around the plan limits or rate limits described in Section 3, or use the Service for any unlawful purpose.
In these terms, Your Content means anything you put into Vernabla: decks and cards you write yourself, files you import, and text you paste in. You are solely responsible for Your Content, and you confirm that you have the right to submit it.
This applies to imported decks as much as to cards you write. A deck you downloaded from someone else, or one built from a textbook, course, dictionary, or other published material, is yours to import only if you are permitted to copy it. Importing it into Vernabla does not make it yours, and we are not able to check.
If you believe content held in a Vernabla account infringes your rights, email [email protected] with enough detail to identify the material and we will investigate and act where the claim is made out.
You retain ownership of Your Content. We claim no rights in it.
By using the Service you grant us a limited, non-exclusive licence to store, copy, and process Your Content solely in order to provide the Service to you. That includes sending it to our AI providers, OpenAI and Anthropic, to generate embeddings, connections between cards, stories, translations, and word lookups. The licence exists only to run the features you ask for, it extends to those providers only for that purpose, and it ends when you delete the content or your account.
We do not train any model on Your Content, and we do not license it to anyone else to train theirs. Our Privacy Policy sets out what each provider receives.
The Vernabla name and logo, the design and text of the app and this website, and the software behind them belong to us or to our licensors. These terms give you permission to use the Service and nothing more. They grant you no right to copy, modify, distribute, sell, or create derivative works from any of it, and no right to use our name or logo without our written permission.
None of this applies to Your Content, or to the material generated for you, which are covered by Sections 6 and 8.
Stories, translations, glosses, and suggested connections between cards are generated by AI and may contain inaccuracies. This content is provided to support your learning and should not be relied upon as an authoritative source.
We claim no ownership of the material generated for you. It is yours to use for your own learning and for any other lawful purpose. Because it is machine generated, it may not attract copyright protection in every country, so we cannot promise you an exclusive right in it.
To the maximum extent permitted by law, Vernabla is provided "as is" without warranties of any kind. We are not liable for any indirect, incidental, or consequential damages arising from your use of the service.
Cap on our liability. Where our liability is not excluded, our total liability to you for all claims arising out of or relating to the Service, taken together, is limited to the greater of (a) the amount you paid us in the twelve months before the event giving rise to the claim, and (b) USD $100.
Loss of your content. Vernabla keeps a copy of your decks and cards in your browser and syncs them to our database. A browser can clear its local copy without warning, and a sync can fail. We are not liable for content lost in that way. You can download everything at any time from Settings, and we recommend that you do so periodically.
Nothing in these terms excludes or limits our liability where the law does not allow it to be excluded or limited, including liability for death or personal injury caused by negligence, for fraud, or for rights you have as a consumer that cannot be waived by agreement. Some places do not allow the exclusions or limits set out above; where that is so, they apply to you only as far as the law permits.
If someone brings a claim against us because of something you did, you agree to cover us for it. You will defend, indemnify, and hold harmless Vernabla and the people who run it against any claim, loss, liability, or reasonable legal cost arising out of:
We will tell you promptly about any claim we want covered, and we will not settle it without your agreement, which you will not unreasonably withhold. You may take over the defence at your own cost, provided you do not settle on terms that admit fault on our part or impose an obligation on us.
This Section does not apply to a claim caused by our own breach of these terms or our own negligence. If you use Vernabla as a consumer, this Section applies only so far as the law where you live allows.
You may stop using Vernabla at any time. You can delete your account from within the app, which erases your account data as described in our Privacy Policy.
We may suspend or close an account that breaches these terms, in particular Section 5. Where it is reasonable to do so we will tell you first and give you a chance to put things right. If we close your account without cause, we will refund any period you have paid for but not yet received.
Sections 4, 6, 7, 9, 10, 11, 13 and 14 continue to apply after these terms end. The licence you grant us in Section 6 ends when your content is deleted.
We may update these terms. When we do, we will change the version number and effective date at the top of this page. If a change materially reduces your rights or increases your obligations, we will give you reasonable notice before it takes effect, by email if you have an account with us, so that you can stop using the Service if you disagree. Continuing to use Vernabla after a change takes effect means you accept the updated terms.
These terms are governed by the laws of Alberta, Canada, and the courts of Alberta will have jurisdiction. If you use Vernabla as a consumer somewhere else, this does not deprive you of the protection of any mandatory consumer law of the country you live in, or of the right to bring proceedings there where local law gives you that right.
Severability. If a court or regulator decides that part of these terms cannot be enforced, that part is treated as changed only so far as is needed to make it enforceable, or removed if it cannot be. The rest of these terms stay in force.
No waiver. If we do not enforce a right under these terms straight away, we have not given it up.
Assignment. You may not transfer your rights under these terms to anyone else. We may transfer ours to a company that takes over Vernabla, provided your rights under these terms are not reduced.
Entire agreement. These terms, the Privacy Policy, and anything you confirmed at checkout are the whole agreement between us about the Service, and replace anything said before.
Questions about these terms? Contact us at [email protected].