Written under Brazilian law: the LGPD (Federal Law No. 13,709/2018, Brazil's General Data Protection Law), the Marco Civil da Internet (Federal Law No. 12,965/2014, Brazil's Internet Bill of Rights) and the Consumer Protection Code (Federal Law No. 8,078/1990). This is the same text presented when you sign up in the app — see also ourPrivacy Policy.

1. Who we are and acceptance

Vayker is an app for organizing group trips: collaborative itineraries, shared expense tracking and splitting costs between participants.

By creating an account you state that you have read, understood and agree to these Terms and to the data handling described in ourPrivacy Policy. If you don't agree, please don't use the app.

2. Application license

Vayker grants you a personal, non-exclusive, non-transferable license to use the app on devices you own or control, solely for its intended purpose.

You may not redistribute, sublicense or make the app available to third parties, nor attempt to reverse-engineer, decompile or create derivative works of the app, except to the extent expressly permitted by law. Use of the app also remains subject to the terms of the App Store or Google Play, whichever store you obtained it from.

3. Sign-up and account

To use Vayker you must be at least 16 years old — users under 18 need the consent of a legal guardian, per Article 14 of the LGPD.

You're responsible for the accuracy of the information you provide and for keeping your credentials safe. Activity on your account is your responsibility. Let us know if you notice unauthorized use.

4. Sharing within trips

Vayker is collaborative by nature: once you join a trip, your name, profile photo and the records you create (itineraries, expenses, balances) become visible to the other participants of that trip — and only to them.

Invitations work by PIN. Only share the PIN with people you want on the trip: anyone with the code can join.

5. Expense splitting is not a financial service

The amounts, balances and settlement suggestions shown by the app are informal records entered by the participants themselves, with no banking validation. Vayker does not process payments, does not charge fees, and these records do not constitute a debt instrument between users.

Please review your group's entries: the accuracy of each record is the responsibility of whoever created it.

6. Credits, Pro subscription and billing

Vayker offers credits for AI features (itinerary generation, AI chat), available in two forms: one-time packages, charged a single time, or the Pro plan, a recurring subscription with automatic monthly renewal that grants a new batch of credits each cycle.

The exact price, currency and billing period are shown on the purchase screen before you confirm, and may vary by region. Payment is charged to your device's store account (App Store or Google Play) at the time you confirm the purchase.

The Pro subscription renews automatically at the end of each cycle unless canceled at least 24 hours before the end of the current period; the renewal charge is applied within that 24-hour window, at the price in effect at that time.

The subscription is managed through your store account, not by Vayker: to cancel or turn off automatic renewal, go to the subscription settings of your App Store or Google Play account. Credits already granted are non-refundable, except where required by law or by the store's own policy; past purchases can be recovered at any time via "Restore purchases" inside the app.

7. Third-party services we integrate

Vayker relies on third-party services to work: address/map search, and payment processing for subscriptions and in-app purchases (your device's store and RevenueCat). These services have their own terms and privacy policies, which also apply to your use of them.

We are not responsible for the availability, accuracy or content of these external services, which may be changed, suspended or discontinued at any time by their respective providers, without prior notice from us.

8. Acceptable use and content

You retain ownership of the content you submit (photos, text) and grant Vayker a limited license to store it and display it to the participants of your trips — only as needed to operate the service.

Posting unlawful or offensive content, or content belonging to third parties without authorization, is prohibited, as is attempting to bypass the app's safeguards. Accounts in violation may be suspended or terminated.

9. Termination

You may stop using Vayker at any time by deleting your account from within the app (Profile → Delete my account).

We may suspend or terminate your access, in whole or in part, if you breach these Terms, misuse the app, or as required by law. Once access ends, the usage rights granted by these Terms cease, without prejudice to any obligations already in effect.

10. Availability and changes

We work to keep the service stable, but it's provided "as is" and may undergo maintenance and updates.

These Terms may be updated; material changes will be communicated in the app with reasonable notice. Continued use after they take effect counts as agreement.

11. Governing law and jurisdiction

These Terms are governed by the laws of the Federative Republic of Brazil, in particular the LGPD (Federal Law No. 13,709/2018), the Marco Civil da Internet (Federal Law No. 12,965/2014) and the Consumer Protection Code (Federal Law No. 8,078/1990).

The courts of your place of residence have jurisdiction to settle any disputes, per Article 101, I, of the Consumer Protection Code.

12. Contact

Questions, requests about personal data, or exercising your LGPD rights: reach our data protection contact atapp.vayker@gmail.com.

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