Vienne ("Vienne", "we", "us", "our") is a personal trading journal operated from Estonia, European Union. You can reach us at truevienne@gmail.com. These Terms of Service ("Terms") form a binding agreement between you and the operator of Vienne.
By creating an account or using the service you confirm that you have read, understood and accept these Terms and our Privacy Policy, which is incorporated into them by reference. If you do not accept them, do not use the service. If you are agreeing on behalf of an organisation, you confirm you are authorised to bind it.
You must be at least 16 years old, or the age of digital consent in your country if it is higher, and you must have the legal capacity to enter into a contract. If you are under that age, you may use the service only where a parent or legal guardian accepts these Terms on your behalf and supervises your use.
Vienne lets you record your own trading days, organise them across trading accounts, track related expenses and payouts, review statistics you generate from that data, and optionally send a filtered summary to an AI provider of your choosing for commentary. The service is provided for your personal use.
Vienne has no connection to any broker, exchange or prop firm. It does not place, mirror, copy or synchronise trades, does not hold funds, and never accesses a trading account. Every figure in the app comes from what you typed in.
Vienne is a record-keeping and analytics tool. It is not a financial institution, investment firm, or licensed adviser in any jurisdiction, and it does not provide investment advice, portfolio management, signals or recommendations. Statistics, scores, streaks and AI-generated commentary are informational outputs derived from data you supplied, may contain errors, and must not be treated as a basis for any trading or financial decision. Trading carries substantial risk, including the total loss of capital. You act at your own risk and are solely responsible for your decisions and their outcomes. Seek independent professional advice where appropriate.
Core journaling is available without payment. Certain features, currently AI Analysis, require an active licence key. Keys are issued at our discretion and are not sold through the application; where a key is supplied in exchange for payment, the price, duration and payment method are agreed separately before purchase, and any applicable VAT is stated at that point.
An unactivated key does not expire. The validity period starts on activation and the key stops granting access when it ends. Licences grant a limited, personal, non-exclusive, non-transferable, revocable right to use the paid features for the licence period. They are not a sale of the software.
If you are a consumer resident in the European Union, Directive 2011/83/EU gives you the right to withdraw from a distance contract within 14 days of concluding it, without giving a reason. To withdraw, send a clear statement to truevienne@gmail.com before the period ends; we will refund any payment received without undue delay and within 14 days of being informed, using the same means of payment you used.
Where you ask us to begin supplying digital content immediately — which is what happens when you activate a licence key — you expressly consent to immediate performance and acknowledge that you thereby lose the right of withdrawal once performance has begun, in accordance with Article 16(m) of that Directive. If you do not wish to lose it, do not activate the key until the 14 days have passed.
AI Analysis is optional and disabled by default. If you enable it, you supply your own API key for a provider you select (Anthropic Claude, OpenAI ChatGPT, DeepSeek, xAI Grok or Groq). That key and the filtered journal data needed to answer your question are sent directly from your browser to that provider; they do not pass through or get stored on our servers.
Your use of a provider is a separate relationship governed by that provider's terms and privacy policy. You are responsible for complying with them, for any charges they bill you, and for deciding what data you are willing to send. We do not control, endorse or take responsibility for their availability, output, pricing or data handling, and AI output may be inaccurate or misleading.
You agree not to:
Everything you enter — trades, notes, screenshots, account and expense records — remains yours. We claim no ownership of it. You grant us only the limited licence needed to host, store, back up, transmit and display that content to you so the service can function, for as long as you keep your account. That licence ends when you delete the content or your account. You confirm you have the right to store the content you upload, and you are responsible for its legality and accuracy. We do not monitor journal content and do not use it to train any model.
You can export a complete copy at any time from Settings → Data. We recommend keeping your own backups.
The Vienne application, its name, design, interface and underlying code are protected by intellectual property law and remain ours or our licensors'. These Terms grant you a limited, personal, non-exclusive, non-transferable, revocable right to use the service as intended, and nothing more.
We aim to keep the service available but do not guarantee uninterrupted or error-free operation. Maintenance, updates and outages happen, and features may be added, changed or removed as the product develops. Where a change materially reduces functionality you rely on, we will give reasonable advance notice by email or in-app notice where practicable. If we discontinue the service entirely, we will give you at least 30 days' notice and a window to export your data, and we will refund the unused portion of any paid licence.
You may stop using the service and delete your account at any time. We may suspend or terminate access if you materially breach these Terms, if your use puts the service, its infrastructure or other users at risk, or if we are legally required to. Except where immediate action is necessary or legally required, we will give you notice and, where the breach can be fixed, a reasonable opportunity to fix it. If we terminate your account without cause, we will refund the unused portion of any paid licence. On termination, the sections that by their nature should survive — including 11, 12, 15, 16, 17, 19, 20 and 21 — continue to apply.
To the fullest extent permitted by law, the service is provided "as is" and "as available", without warranties of any kind, whether express or implied, including implied warranties of merchantability, fitness for a particular purpose and non-infringement. We do not warrant that statistics or AI-generated content are accurate, complete or suitable for any purpose.
Nothing in these Terms excludes or limits our liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, for gross negligence or wilful misconduct, or for any other liability that cannot lawfully be excluded or limited.
Subject to that, and to the fullest extent permitted by law:
If you are a consumer, we are liable for foreseeable loss caused by our breach of these Terms or our failure to use reasonable care and skill, and the above limits apply only to the extent permitted by the mandatory consumer law of your country of residence.
If you use the service in breach of these Terms or of applicable law and that causes us loss, or leads to a third-party claim against us, you agree to be responsible for the reasonable, directly resulting costs and damages. This does not apply to the extent the loss was caused by us, and where you are a consumer it applies only within the limits of mandatory law.
We may amend these Terms to reflect changes to the service, our operations or the law. The version number and date at the top always show the current text. For material changes affecting registered users we will give notice by email or in-app message at least 30 days before they take effect. If you do not accept the new Terms, you may close your account before that date, and we will refund the unused portion of any paid licence. Continued use after the effective date means acceptance.
These Terms and any dispute arising from them are governed by the laws of the Republic of Estonia, excluding its conflict-of-law rules and the UN Convention on Contracts for the International Sale of Goods. The courts of Estonia have jurisdiction.
If you are a consumer resident in the European Union, this choice of law does not deprive you of the protection of the mandatory provisions of the law of your country of residence, and you may bring proceedings in the courts of that country.
Please contact us first at truevienne@gmail.com — we will acknowledge your complaint and aim to resolve it within 14 days. Consumers in the EU may also use the European Commission's Online Dispute Resolution platform, and consumers in Estonia may refer a dispute to the Consumer Disputes Committee of the Consumer Protection and Technical Regulatory Authority (ttja.ee). We are not obliged to participate in an alternative dispute resolution procedure, but we will consider any request in good faith.
Questions about these Terms, licences, complaints or anything else:
truevienne@gmail.com
See also our Privacy Policy.