Terms of Use
Version 2026-11-05 · Effective 5 November 2026
These terms are the agreement between Neuros Studio ("Viyu", "we") and you, the user of the Viyu mobile app and website. By using the app or opening an account you accept them. Your personal data is processed under the Privacy Policy and the Privacy Notice (KVKK). The Turkish version prevails if the two differ.
1. What Viyu is
Viyu is a personal visa assistant for your trips abroad and visa applications. It offers: appointment alerts for the application centre you follow (Appointment Hunter, with signals from the calendar, Watch Mode, community reports and public channels), the opening calendar, a checklist for your application centre and situation, File X-ray, a timeline and reminders, an encrypted vault for your documents on your phone, the Schengen 90/180 counter and Travel Shield, the First Trip programme and an optional AI assistant. We never book, hold or sell appointments; you book on the official site yourself.
2. What Viyu is not
- We are not a government body. Viyu is an independent private company. We are not affiliated with, and do not represent, any government, consulate, embassy or visa application center (iDATA, VFS Global, BLS, Kosmos, AS Visa, TLScontact and the like).
- We don't apply for you. You apply through the official channel yourself. We never book or sell appointments, never access application center or consulate systems automatically and never log in on your behalf. We don't collect consular or application center fees.
- We promise no outcome. Only the relevant authorities decide on visas, and nobody can know that decision in advance. Viyu never shows outcome predictions or scores. It helps you prepare; it doesn't claim to change the outcome.
- We don't give legal advice. Viyu is not a law firm or a legal advice service. For a legal problem, we recommend consulting a lawyer.
3. Accuracy
- We compile rules from official sources and show each rule's source and the date we last verified it. When a source isn't clear, we say so.
- Authorities can change rules, fees and document lists without notice. We recommend checking the official source once before you apply.
- AI answers can be wrong; every answer comes labelled Certain, Likely or Uncertain, with its source.
- The calculators (Schengen 90/180, exit fee, customs) are for information; at the border and in your application, the authorised officer decides.
- If you see something wrong, report it with "This is wrong"; we review it within 48 hours.
4. Your account
- You must be 18 or older to use Viyu.
- You open your account with an e-mail code, Apple or Google. You are responsible for the security of your account and phone; tell us immediately if you notice unauthorised use.
- You are responsible for the accuracy of what you enter; your plan and checklist are built on it.
- If you add family members (up to 5 people in your household), you must have their permission or be their legal representative. Minors' preparation is managed in a parent's account.
- You can delete your account from the app at any time: Delete account.
5. Your documents and your phone
- Documents you add are kept only in the encrypted vault on your phone; we hold no copies.
- Documents are deleted from your phone automatically 30 days after your goal ends; we remind you 3 days before. Exporting a document to your own files before then is up to you.
- If you lose or change your phone or delete the app, we can't restore your documents. Your plan, goals and document status come with your account; you add the documents again on the new phone.
6. Paid plans
- Viyu's free plan has no time limit; what it includes is listed in the Subscriptions page and on the plan screen in the app. The free plan sends no appointment alarm notifications.
- Paid plans: Premium and Premium Plus, as weekly, monthly or yearly auto-renewing subscriptions. Premium Yearly has a 3-day free trial. Prices in Türkiye: Premium ₺179.99 a week, ₺449.99 a month, ₺2,499.99 a year; Premium Plus ₺299.99 a week, ₺749.99 a month, ₺3,999.99 a year. The price that applies is the one the App Store or Google Play shows before you buy.
- If you bought Premium Application Period or Premium Annual before, you keep it until the end of the period you paid for.
- Purchase, payment, renewal, cancellation and refunds go through the App Store or Google Play under that store's rules. An auto-renewing subscription renews unless you cancel it in the store's subscription settings at least 24 hours before the period ends.
- Consular fees, application center fees and other authority fees are not included in Viyu's price; you pay them directly to the relevant body.
- Features that use AI (the assistant and letter drafts) require your explicit consent for AI. Without it those features don't work and the others do; we say so on the plan screen before you buy.
- Details on plans, trial, cancellation and refunds: Subscriptions.
7. Right of withdrawal and refunds
Paid plans are digital services available as soon as you buy. Under Article 15(1)(ğ) of Türkiye's Distance Contracts Regulation, the right of withdrawal does not apply to services performed instantly in electronic form; we also say this on the plan screen before you buy. This does not affect the store's own refund rules or our commitments below:
- If your application center returned your file because a Certain-labelled piece of information from us was wrong, we help you get the full price of that period back.
- If there was a billing error or double charge, we help you get it all back.
- A visa refusal alone is not a reason for a refund; the consulate decides.
Details and how to ask: Subscriptions.
8. Acceptable use
When using Viyu you agree not to:
- use it for an unlawful purpose, act for someone else without permission or prepare an application with false information,
- scan, scrape or overload the app or our servers with automated tools, or try to bypass security measures,
- reverse engineer, copy or distribute modified versions of the app (except where the law allows),
- send made-up reports to the slot radar or Türkiye's Route board, sell appointments or offer brokering,
- type other people's personal data or unlawful content into the assistant.
Zero tolerance for community content. There is no tolerance for false, malicious, abusive or objectionable content posted to the slot radar or other community areas, or for users who post it. We review every report within 24 hours, remove offending content and eject the user who posted it from the community. In the app you can report any report, remove it from your feed and block its sender; you can also report objectionable content to viyu@neuros.com.tr.
If these rules are broken we may remove the content, restrict the feature or, for serious or repeated breaches, close the account. Unless legally prevented, we tell you why before closing it. Community rules: Community Rules.
9. Intellectual property
The Viyu app, website, rule base, design, texts and trademarks belong to Viyu or its licensors. As long as you follow these terms, we give you a non-transferable, non-exclusive right to use the app for personal, non-commercial purposes. What you enter and your documents belong to you.
10. Liability
- We prepare Viyu with care and show information with its sources, but we can't be held responsible for authorities' decisions, their rule changes, appointment availability or the outcome of your application.
- Liability for intent and gross negligence and your rights under consumer law are not affected. To the extent the law allows, we are not liable for indirect damage.
- We aim for an uninterrupted service; short interruptions may happen for maintenance, updates or reasons beyond our control.
11. Changes and termination
- We may improve the service and change or remove features. During a paid period we won't remove that period's core features to your disadvantage.
- If we change these terms we publish the current version here and in the app, and announce important changes in the app before they take effect. If you don't accept a change, you can delete your account.
- When you delete your account, this agreement ends; rights and retention duties that arose before then continue.
12. App Store and Google Play
If you downloaded the app from the App Store, Apple's Standard Licensed Application End User License Agreement also applies; these terms supplement it. Apple and Google are not parties to this agreement and are not responsible for maintaining or supporting the app; for support, write to us. Store purchases are subject to that store's terms.
13. Governing law and disputes
These terms are governed by Turkish law. For disputes you can apply to consumer arbitration committees within their monetary limits and to consumer courts above them. If you write to us first, we'll try to solve it together.