Revision 14 September 2026.
LexiLex helps you learn languages using learning materials and AI answer checks. The service is provided by ILYA KHARYN, an individual using the Qellum brand. Address: ul. Długa 40/4, 41-506 Chorzów, Poland. Contact: support@lexilex.com, +48 576 674 597 or in-app support.
The contract is formed when you expressly accept these terms in the app after having the opportunity to read the full text. Sections 5 and 9 apply to existing users. Purchases and consent to optional analytics are separate choices.
You must be at least 18 to use LexiLex. Registration and guest access are available. Server features require internet access, a compatible device and a supported app version. We explain necessary updates and the consequences of not installing them in advance.
A guest account without a linked sign-in method may be lost after reinstalling or changing devices. We recommend registering before purchasing. Support can help restore a verified purchase.
Keep your account secure. Do not upload illegal material, others’ confidential information or content you have no right to use. Do not bypass payment or security, resell access or overload the service with bots.
You may use the app for personal learning. The app remains the property of its rights holders; your uploaded materials remain yours. You allow us to store, process and transmit those materials to technical providers as needed for your chosen features. This does not permit selling them or using them in advertising.
AI can make mistakes. Check important translations and explanations before using them outside learning. We do not guarantee a particular learning outcome or that every AI answer is unique.
The shared topic catalogue, ordinary learning and local answer checks are free. Creating and preparing your own topics, text processing, some recognition operations and advanced AI checks may use credits. Material creation shows its cost before confirmation. An advanced check costs 1 credit per completed check and can be disabled in settings.
Plus is paid monthly or upfront for a year and provides 10,000 credits for each 30-day credit period within the paid subscription. The credit period differs from a calendar billing month. The app shows the balance expiry date. Unused periodic credits and missed allowances for inactive periods do not accumulate. An annual subscription does not grant all annual credits at once.
Packs of 10,000 or 20,000 credits can be purchased with an active paid Plus subscription. Pack credits have no scheduled expiry and remain available after Plus ends. Periodic credits are used first, then pack credits. Credits cannot be transferred to others or exchanged for money, except for refunds required by law.
The store shows the final price, currency, taxes and billing period before purchase. Subscriptions renew automatically where the offer provides for this. Cancel renewal in App Store or Google Play before the store’s stated deadline. Access continues until the paid period ends unless the purchase is refunded or revoked. Deleting the app or account does not cancel a subscription.
Redelivery of a result is not charged again. If a paid operation fails technically, the credits charged for it are returned. A refund or revocation adjusts the related access and balance without an additional monetary charge.
From 1 November 2026 in Polish time, the free version may show Google AdMob advertising. An active Plus subscription provides an ad-free experience. Credit-pack credits alone do not disable ads. Acknowledging this notice, accepting these terms, or consenting to analytics is not advertising consent: advertising uses a separate choice and separate withdrawal through a Google-certified UMP/CMP form where required. For accounts covered by the transition benefit, advertising is also not shown until the stated transition end date.
For accounts registered by the end of 1 October 2026 in Polish time, creating and preparing your own topics and advanced AI checks remain free until the earlier of 30 days after tapping “Got it” or the end of 31 October 2026 in Polish time. Without tapping “Got it”, free access will still end after 31 October 2026. The app shows the exact end date. The service notice is shown in the notification centre; clearing it does not change the deadline.
“Got it” confirms receipt of the notice. It does not accept new terms or make a purchase. Accepting terms early does not shorten the free period, and tapping after the final date does not restore free access. The transition itself does not change your balance or subscription status.
Free transition access has limits: 20 topic creations and separately 20 preparations per day, 3 such requests combined per minute and 100 advanced checks per day. Days are counted in UTC. These limits do not apply with an active paid subscription or available pack credits.
This benefit is for registered accounts; guest access alone does not qualify. This does not remove rights under an earlier guest contract. After the transition, you can continue free learning, use credits or voluntarily choose a purchase.
Tell support what happened and the outcome you need. Identify the account and operation; a receipt helps locate a purchase. We respond to consumer complaints within the legal deadline, generally 14 days under Polish law, in a form you can save.
If a service is not supplied or does not conform to the contract, you retain your statutory rights to a remedy, price reduction or termination and refund. You do not have to contact the store first. Credits do not replace a monetary refund required by law.
EU consumers can generally withdraw from a distance contract within 14 days without giving a reason. For immediately supplied digital content, an exception requires separate prior consent, acknowledgement of losing the withdrawal right and proper contract confirmation. Starting a service alone does not remove that right; a proportionate charge is possible only when the legal conditions are met. Accepting general terms or spending credits does not automatically waive withdrawal rights.
Send your statement to support@lexilex.com or by post; you may use the form in section 10. Sending it before the deadline is sufficient. A required refund is made without undue delay, generally within 14 days, using the original payment method unless the law provides otherwise. Store refund tools are also available for store purchases.
For a breach of these rules or a security threat, we may proportionately restrict the affected feature or account. Where possible, we explain the reason in advance; you may challenge the decision through support. Ordinary use of paid credits is not a breach.
You may stop using the service, request a data export and delete your account in settings or through support. For a planned service closure, we will notify you in advance and settle remaining paid obligations as required by law.
Continuous availability and a particular learning result are not guaranteed. These terms do not limit mandatory consumer rights or liability that cannot legally be excluded.
Polish law applies, preserving mandatory protection in the consumer’s country of habitual residence and the right to a competent court. Information on out-of-court dispute resolution is available from UOKiK. English does not automatically prevail over other language versions.
Terms may change because of law, security, compatibility or changes to features. We explain the reason, content and date in advance. A material deterioration of existing terms applies no earlier than 30 days after individual notice containing the full version you can save, and after separate acceptance where required. Earlier versions are preserved.
Changes to an existing digital service beyond those needed to maintain conformity with the contract do not create additional charges. New paid features are chosen separately. A material negative impact on access or use may give you a statutory right to terminate without charge within 30 days of the change or later notice. Silence and an app update do not replace required consent.
Use this form only if you want to withdraw from the contract. A statement in your own words is also sufficient.
To: ILYA KHARYN, ul. Długa 40/4, 41-506 Chorzów, Poland; support@lexilex.com.
I/We withdraw from the contract for the following digital content / service: [description].