Terms of Service

Effective July 10, 2026

These Terms of Service (the “Terms”) govern your use of the Impressionary application, website, and related services (together, the “Service”), operated by Impressionary (“we”, “us”, “our”). By creating an account or using the Service, you agree to these Terms and to our Privacy Policy. If you do not agree, please do not use the Service.

In plain terms: Impressionary is an AI learning aid, not critical infrastructure. It is not a backup service, a system of record, or an authoritative reference. AI-generated content — definitions, pronunciations, audio, and especially the mnemonic images — can be inaccurate, and the images may or may not reflect a word's meaning at all. You should keep your own copy of anything that matters to you and verify anything you rely on. The sections below set out that arrangement in more detail.

1. What the Service is

Impressionary is an AI-powered dictionary for language learners. When you look up a word, the Service uses artificial-intelligence models to generate learning content — definitions, example sentences, grammar explanations, facts, mnemonic images, and synthesized audio — and saves it to your personal card library. The Service depends on third-party AI, cloud, storage, and speech providers to do this, and it evolves continuously.

2. Eligibility and your account

• You must be at least 13 years old (or at least 16 where local law requires) to use the Service.
• You are responsible for the security of your account and the sign-in methods you attach to it (Apple, Google, email codes, passkeys), and for activity that happens through your account. Let us know promptly if you believe your account has been compromised.
• You may use the Service only for personal, non-commercial language learning unless we agree otherwise in writing.

3. AI-generated content and no guarantee of results

Most content in the Service is generated by AI models at the moment you request it. AI-generated content can be, and sometimes will be, wrong. We actively work to improve accuracy, but errors are an inherent property of current AI technology that no amount of engineering fully eliminates, and we cannot and do not promise that any particular piece of generated content is correct. In particular:

• Text. Definitions, translations, example sentences, grammar explanations, word-class labels, usage notes, and facts may be imprecise, incomplete, unnatural, outdated, contextually wrong, or simply invented (AI models can state falsehoods confidently).
• Pronunciation. Written pronunciation guides (phonetic notation, romanization, and similar transcriptions) and synthesized audio are machine-generated approximations. They may be inaccurate, non-standard, regionally wrong, or misleading, and must not be treated as an authoritative phonetic reference, a native-speaker model, or a reliable basis for exams, assessments, or professional or interpretive use.
• Images. Generated images are stylized mnemonic illustrations intended only as memory aids. They may or may not reflect the actual meaning of a word: an image may depict the meaning loosely, metaphorically, partially, incorrectly, or not at all, and may contain visual artifacts or garbled text. Images are not visual definitions and must never be relied on to determine what a word means.

We do not warrant or guarantee the accuracy, completeness, reliability, or suitability of any generated content, and in particular we make no promise as to translation accuracy, pronunciation accuracy, factual accuracy, grammatical correctness, exam or test performance, learning results, fluency, retention, or fitness for any specific curriculum, exam, or academic, professional, business, legal, medical, financial, safety, or immigration purpose. The Service is a learning aid, not an authoritative reference or study material of record, and nothing in it is professional advice. Verify anything that matters with a qualified source — such as an established dictionary, a teacher, or a native speaker — before relying on it.

Acknowledgment and assumption of risk. By using the Service you acknowledge the limitations above, agree that any reliance you place on generated content is at your own risk, and agree that you are responsible for independently verifying generated content before relying on it for any purpose that matters to you. To the maximum extent permitted by the law that applies to you, you agree that we are not liable for — and you waive and release any claim against us arising from — inaccuracies, errors, omissions, or misleading output in AI-generated content (including definitions, translations, examples, grammar, pronunciations, audio, and images), or from any decision made or action taken in reliance on such content. This does not limit rights that cannot be waived under mandatory consumer-protection law where you live.

To the extent we hold any rights in content the Service generates for you, we grant you a perpetual, worldwide, royalty-free license to use that content for any lawful personal purpose, including keeping and sharing your cards. Identical or similar content may be generated for other users, and you receive no exclusive rights in AI output.

4. Your content and the licenses you grant

You keep ownership of anything you submit to the Service (words and text you look up, and lists you create). To operate the Service, you grant us a worldwide, non-exclusive, royalty-free, sublicensable license to host, store, cache, back up, reproduce, process, transmit, display, adapt, and create derivative works from that content — and the content generated from it — for the purposes of:

• generating, storing, and syncing your cards and media across your devices;
• caching generated results and serving them again, including to other users who look up the same word in the same languages, and for repeated lookups;
• enabling features you use, such as shared cards, public card links, folders, and future export/import;
• creating and retaining backups;
• debugging, security, moderation, abuse prevention, and enforcing these Terms; and
• complying with law.

This license lasts as long as needed for those purposes; it survives for content you have shared publicly or that others have saved, and for cached or backup copies, which may persist for a period after you delete the original. When you share a card or make a card link, you authorize us and the recipients to access and use that content accordingly. You are responsible for having the rights to any content you submit.

5. Free tier, quotas, and fair use

The free tier includes daily limits on lookups and image generation, which reset at your local day boundary. Limits, features, tiers, and pricing may change as the product evolves. We may apply rate limits, priority lanes, and other protective measures at any time to keep the Service healthy and affordable. Circumventing quotas, rate limits, priority controls, or security measures — or using multiple accounts to do so — is not allowed.

6. Subscriptions and payments (Apple In-App Purchase)

• Paid subscriptions are sold and processed through Apple In-App Purchase and are also subject to Apple’s applicable terms, including the Apple Media Services Terms and the standard licensed-application end-user license agreement (EULA).
• Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically for the same period and price unless you turn off auto-renew at least 24 hours before the end of the current period. Your Apple Account is charged for renewal within 24 hours before the period ends.
• You manage, cancel, and view your subscription in your Apple Account settings (Settings → your name → Subscriptions on your device). Cancelling stops future renewals; it does not retroactively refund the current period.
• Refunds are handled by Apple, not by us — we cannot issue refunds directly. Request them through Apple (reportaproblem.apple.com), subject to Apple’s policies and your local consumer-law rights.
• We use RevenueCat to validate purchases and keep your subscription status in sync. We never receive your payment card details.
• Prices and included features may change; changes apply from your next renewal, and where the law requires we will give advance notice and, where required, the ability to cancel before the change takes effect.

Apple-required terms. These Terms are an agreement between you and us only, not with Apple, and Apple is not responsible for the Service or its content. Apple has no obligation to provide maintenance or support for the Service. If the app fails to conform to any applicable warranty, you may notify Apple and Apple may refund the purchase price (if any); to the maximum extent permitted by law, Apple has no other warranty obligation for the app. Apple is not responsible for addressing any claims relating to the Service, including product-liability, legal- or regulatory-compliance, and consumer-protection claims, or third-party claims that the Service infringes intellectual-property rights; those are governed by these Terms. You represent that you are not located in a country subject to a U.S. Government embargo or designated as a “terrorist supporting” country, and that you are not on any U.S. Government prohibited- or restricted-party list. Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you. You must also comply with any applicable third-party terms when using the Service.

7. Acceptable use

When using the Service you agree not to:

• break the law, or use the Service to generate, store, or share content that is illegal or that infringes anyone’s rights;
• abuse, overload, probe, scan, or disrupt the Service or its security, or access it by any automated means (scripts, scrapers, bots, headless clients) except through interfaces we provide;
• circumvent quotas, rate limits, priority controls, authentication, or usage metering, or abuse AI generation (for example, bulk or automated generation, or generation unrelated to genuine personal language learning);
• attempt to extract, reconstruct, or copy our prompts, system instructions, models, datasets, or source code, or reverse engineer the Service, except where the law grants you that right regardless of this term;
• resell, sublicense, or provide the Service (or content generated at our cost) to third parties as a service;
• misrepresent your identity or subscription status, share accounts to circumvent limits, or use fraudulent, stolen, or unauthorized payment methods; or initiate chargebacks or payment disputes for charges you actually authorized instead of contacting Apple or us first.

8. Service availability, maintenance, and third-party dependencies

The Service is provided on an “as available” basis and we do not promise uninterrupted, timely, secure, or error-free operation. Without prior notice where notice is not practical, we may add, change, suspend, throttle, degrade, or discontinue any feature, model, or the whole Service; perform scheduled or emergency maintenance; migrate, re-architect, or move infrastructure; and replace or remove AI, cloud, storage, speech, or payment providers. We may take any of these actions where we consider it appropriate for security, abuse prevention, legal or regulatory compliance, provider failure, cost control, or operational risk.

Data preservation is your responsibility. You are responsible for keeping your own copy of anything important to you. Your saved cards, generated images and audio, study history, sync state, cached media, lists, and other content may become temporarily or permanently unavailable, and may be interrupted, delayed, corrupted, altered, deleted, reset, or lost — including as a result of maintenance, provider outages, migrations, bugs, security actions, or account changes. We will make reasonable efforts to preserve saved content, but the Service is not a backup service and must not be relied on as the only or authoritative copy of anything irreplaceable.

The Service depends on third parties. It relies on providers including Supabase, Cloudflare, OpenAI, Microsoft Azure, RevenueCat, and Apple (see the Privacy Policy). Their outages, latency, model changes, API rate limits, quota reductions, content filters or refusals, degraded or altered generation quality, pricing changes, regional unavailability, deprecations, or discontinuation are outside our control and may interrupt, delay, degrade, or change the Service. We are not responsible for acts or omissions of third-party providers, and their changes may require us to change or remove features without notice.

We are not liable for any failure or delay in providing the Service caused by events beyond our reasonable control, including third-party provider outages or changes, network or hosting failures, denial-of-service or other attacks, natural events, or government action.

9. Suspension and termination

You may stop using the Service and delete your account at any time. We may suspend, restrict, rate-limit, or terminate your access — in whole or in part, with or without prior notice depending on the circumstances — if we reasonably believe you have violated these Terms or the law; circumvented quotas, rate limits, or security controls; scraped, probed, or accessed the Service by unauthorized automated means; attempted to extract our prompts, models, or source; abused AI generation; engaged in subscription fraud, payment fraud, or chargeback abuse; or created legal, security, financial, or operational risk for us, other users, or our providers. Where practical and appropriate, we will warn you first and give you a chance to fix the problem. Sections that by their nature should survive termination — including granted licenses, disclaimers, indemnity, and liability limits — survive.

10. Indemnification

To the extent permitted by the law that applies to you as a consumer, you agree to defend, indemnify, and hold harmless Impressionary and its operators, and reimburse us for reasonable costs, losses, and legal fees, arising out of third-party claims caused by: (a) content you submit to or generate through the Service; (b) your unlawful use of the Service or use in breach of these Terms; (c) your infringement or misappropriation of another’s intellectual-property, privacy, or other rights; (d) your misuse of generated content or of shared cards; or (e) misuse of your account. This obligation does not apply to the extent a claim results from our own breach, negligence, or wrongdoing, and it does not limit any mandatory consumer rights you have where you live.

11. Disclaimers

The Service and all content in it are provided “as is” and “as available”, without warranties of any kind, whether express, implied, or statutory, including merchantability, fitness for a particular purpose, accuracy, quiet enjoyment, and non-infringement, and any warranty arising from course of dealing or usage of trade. We do not warrant that the Service will meet your requirements, be available, secure, or error-free, or that content will be accurate or preserved. Some jurisdictions do not allow certain warranty exclusions, so parts of this section may not apply to you, and nothing here removes warranties or rights that cannot be excluded under the law that protects you as a consumer.

12. Limitation of liability

To the maximum extent permitted by law, we are not liable for indirect, incidental, special, consequential, exemplary, or punitive damages, or for loss of or damage to data, loss of profits, revenue, goodwill, or anticipated savings, or for the cost of substitute services, arising from or relating to the Service or any content generated by it — including claims based on inaccurate, incomplete, or misleading AI-generated definitions, translations, pronunciations, audio, or images, or on reliance placed on them — even if we have been advised of the possibility.

Subject to the paragraph below, our total aggregate liability for all claims relating to the Service is limited as follows:

• Paid users: to the greater of (a) the amount you paid for the Service in the twelve months before the event giving rise to the claim and (b) US $50.
• Free users: to US $50, reflecting that the Service is provided to you at no charge.
• Business or commercial use: where you use the Service in breach of the personal, non-commercial limit in these Terms, our liability is limited to US $50, and the indemnity above applies to your use.

Nothing in these Terms excludes or limits liability that cannot be excluded or limited under the law that applies to you — including, where applicable, liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, for willful misconduct or gross negligence, or under mandatory consumer-protection law. Because some jurisdictions do not allow the exclusion or limitation of certain damages, some of the above may not apply to you; in that case our liability is limited to the smallest extent permitted by law. For purchases made through Apple, Apple’s own terms and refund remedies also apply.

13. Governing law and disputes

These Terms are governed by the laws of the jurisdiction in which the operator of the Service is established, except that if you are a consumer you always keep the protection of the mandatory consumer-protection rules of the country where you live, and disputes may be brought in your local courts where the law gives you that right.

14. Changes to these Terms

We may update these Terms as the Service evolves. For material changes we will give notice in the app or by email before the changes take effect. Continuing to use the Service after a change takes effect means you accept the updated Terms. If you do not accept a change, stop using the Service and, if you wish, delete your account.

15. Contact

Questions about these Terms: support@impressionary.org.