Last updated: October 13, 2026
These Terms of Service ("Terms") govern your access to and use of JustX (the "Service"), operated by Darii Velychko ("JustX," "we," "us," or "our"), based in Germany. If this English version differs from the German AGB, the German version prevails. By creating an account or using the Service, you agree to these Terms. If you do not agree, do not use the Service.
You must be at least 18 years old (or the age of legal majority in your jurisdiction) to use JustX. By using the Service, you confirm you meet this requirement.
JustX is an AI-powered personal assistant that helps you plan and complete everyday tasks, such as web searches, price comparisons, availability checks, meeting scheduling, and — only where you give explicit confirmation — placing bookings or orders with third parties on your behalf (an "Action").
Important: JustX will never submit a final booking, order, or payment on a third-party website without your explicit, step-specific confirmation. Low- and medium-risk steps (such as searching or comparing options) may run automatically; any step JustX classifies as high-risk (such as finalizing a purchase or reservation) requires your confirmation before it is executed.
You are responsible for maintaining the confidentiality of your account credentials and for all activity under your account. Notify us immediately if you suspect unauthorized use of your account.
JustX offers a free plan and paid plans with higher usage limits and additional features (currently Go, Plus and Pro). The scope of each plan, its term (monthly or yearly) and its price including any VAT payable are shown to you before you enter into the contract, on the plans page and during checkout. The contract for a paid plan is concluded when you complete the checkout. Then:
Withdrawal instructions
Right of withdrawal: You have the right to withdraw from this contract within fourteen days without giving any reason. The withdrawal period is fourteen days from the day of conclusion of the contract.
To exercise your right of withdrawal, you must inform us (Darii Velychko, Mainstrasse 1a, 67574 Osthofen, Germany, email: info.justx.ai@gmail.com) of your decision to withdraw from this contract by an unequivocal statement (e.g. a letter sent by post or an email). You may use the attached model withdrawal form, but it is not obligatory. To meet the withdrawal deadline, it is sufficient to send your communication concerning your exercise of the right of withdrawal before the withdrawal period has expired.
Effects of withdrawal: If you withdraw from this contract, we shall reimburse all payments received from you without undue delay and in any event not later than fourteen days from the day on which we are informed about your decision to withdraw. We will carry out such reimbursement using the same means of payment as you used for the initial transaction; in no event will you incur any fees as a result of such reimbursement.
If you requested that the service begin during the withdrawal period, you shall pay us an amount proportionate to what has been provided until you have communicated your withdrawal, in comparison with the full coverage of the contract.
Early expiry: The right of withdrawal expires for a contract for services once we have fully performed the service, provided we began performance only after you gave your express consent and acknowledged that you lose your right of withdrawal once the contract has been fully performed by us.
Model withdrawal form
(Complete and return this form only if you wish to withdraw from the contract, to the email address above.)
(*) Delete as appropriate.
JustX uses third-party AI models to interpret your requests, plan tasks, and generate responses. You acknowledge that:
Completing an Action may involve JustX interacting with third-party websites or services (e.g., a restaurant booking platform or a delivery platform) on your behalf, using data you've provided or connected. We are not responsible for the availability, accuracy, pricing, or conduct of these third-party services. Any contract formed as a result of a booking or order (e.g., with a restaurant or delivery platform) is between you and that third party, not with JustX.
You agree not to:
We may suspend or terminate accounts that violate these Terms.
JustX keeps meetings and confirmed bookings in its built-in calendar. JustX does not access your Google account or your email account. When you confirm a booking request, JustX sends the email to the business on your behalf from its own address (booking@justx.world) and processes the business's reply.
JustX and its original content, features, and functionality are owned by us and protected by applicable intellectual property laws. You retain ownership of the content you submit (messages, attachments), but grant us a limited license to process it as necessary to provide the Service.
We strive for the highest possible availability of the Service but cannot guarantee it; in particular, we do not owe that any booking, order or task will be completed successfully or that AI-generated content is correct. For the paid Service, the statutory warranty rights apply.
We are liable without limitation for intent and gross negligence, for injury to life, body or health, under the Product Liability Act, and where we have given a guarantee or fraudulently concealed a defect. In case of slightly negligent breach of an essential contractual obligation (an obligation whose fulfilment makes proper performance of the contract possible in the first place and on which you may regularly rely), our liability is limited to the foreseeable damage typical for this type of contract. Otherwise, liability for slight negligence is excluded. For free use, we are only liable for intent and gross negligence. We are not responsible for the content or conduct of third-party websites and services or for contracts you enter into with third parties (see Section 7).
You may stop using the Service and delete your account at any time from Settings. We may suspend or terminate your access if you violate these Terms, or discontinue the Service (or parts of it) with reasonable notice where practicable.
We may amend these Terms with effect for the future where there is a valid reason (e.g. new features or changes in law or case law). We will notify you of changes in text form (e.g. by email or in-app notice) at least four weeks before they take effect and ask for your consent. If you do not consent, the previous Terms continue to apply to existing contracts; in that case we may terminate the contract at the earliest possible date.
These Terms are governed by the laws of the Federal Republic of Germany, excluding the UN Convention on Contracts for the International Sale of Goods. If you are a consumer, mandatory consumer-protection provisions of the country of your habitual residence remain unaffected. We are neither willing nor obliged to participate in dispute resolution proceedings before a consumer arbitration board.
Questions about these Terms can be sent to: