Terms of Service

01Acceptance of these terms

These Terms of Service ("Terms") govern your use of Winder, a watch collection application for iOS and Android ("the App"), published by Perpetio OÜ ("we", "us", "our").

By downloading, installing, or using the App you agree to these Terms. If you do not agree, do not install or use the App.

These Terms take effect on 1 June 2026.

02Your licence to use Winder

We grant you a personal, limited, non-exclusive, non-transferable, revocable licence to install and use the App on devices you own or control, for your own private, non-commercial purposes.

This is a licence, not a sale. We retain all rights in the App that are not expressly granted to you here.

03What you may not do

You agree not to:

• Copy, modify, translate, or create derivative works of the App.
• Reverse engineer, decompile, or disassemble the App, except to the extent this restriction is prohibited by applicable law.
• Rent, lease, lend, sell, sublicense, or redistribute the App.
• Remove or obscure any proprietary notices in the App.
• Circumvent, disable, or interfere with the premium unlock or any security feature of the App.
• Use the App for any unlawful purpose or in breach of these Terms.

04Your collection data belongs to you

Your collection data — watch records, photographs, service history, straps, valuations, and settings — is stored on your device, and, if you enable iCloud sync, in your own iCloud account.

You retain all rights in the content you create in the App. We do not claim ownership of it and we do not use it for any purpose of our own.

05iCloud sync

On iOS, you may enable iCloud sync so your collection is available across your Apple devices. Sync uses Apple's CloudKit private database, which means your data is stored inside your own iCloud account under your Apple ID.

Sync requires an Apple ID, an internet connection, and sufficient iCloud storage. Your iCloud account is governed by your agreement with Apple, not with us. If your iCloud storage is full, if you sign out of iCloud, or if Apple's services are unavailable, sync may fail or pause.

Cloud sync is not currently available on Android. Android users should rely on device backup and the App's export tools.

Sync is a convenience feature, not a backup service, and we do not guarantee that it will be available, timely, or error-free.

06Backups are your responsibility

This clause matters, so we state it plainly: you are responsible for maintaining your own backups of your collection data.

iCloud sync keeps your devices in step with one another. It is not a versioned backup and it will not protect you from your own deletions — if you delete a watch on one device, that deletion syncs to the others.

Winder provides export tools (CSV, JSON, and PDF) so you can keep independent copies. We strongly recommend exporting periodically, and we are not liable for any loss of collection data, however caused.

07Valuations are not appraisals

Winder lets you record what you believe a watch is worth. Any value shown in the App is a figure you entered yourself, or a figure derived from figures you entered.

Winder does not provide appraisals, valuations, financial advice, investment advice, or insurance advice. Values in the App are not verified by us and must not be relied upon for insurance, tax, probate, resale, lending, or any other financial or legal purpose.

Exports described as "insurance-ready" are a convenience format only. Your insurer will have its own requirements and will typically require an independent professional appraisal.

08Service reminders are a convenience, not a guarantee

Service, battery, and warranty reminders are scheduled as local notifications on your device. Their delivery depends on your device's operating system, notification permissions, battery-saving settings, and whether the App remains installed.

We do not guarantee that any reminder will be delivered at a particular time, or at all. You remain responsible for the maintenance of your timepieces.

09Premium unlock and payment

Winder is free to use up to the limits described in the App. A one-time in-app purchase unlocks the premium features described at the point of sale.

All payments are processed by Apple's App Store or Google Play, not by us. We never receive your payment card or billing details. Payment, billing, taxes, receipts, and refunds are handled by the relevant store under its own terms.

We use Adapty, a third-party purchase infrastructure provider, to validate purchases and manage entitlements. Its role is described in our Privacy Policy.

Refund requests must be made to Apple or Google. We cannot issue refunds for store purchases directly.

The premium unlock is tied to the store account used to purchase it and can be restored on your devices through that account. It is not transferable between an Apple account and a Google account.

We may change which features are free and which are premium in future versions. We will not revoke a premium unlock you have already paid for.

10App store terms

You obtained the App from the Apple App Store or Google Play, and your use is also subject to that store's terms.

Where you obtained the App from the Apple App Store, you acknowledge that: these Terms are between you and us only, not Apple; we alone are responsible for the App and its content; Apple has no obligation to provide maintenance or support for the App; in the event of any failure of the App to conform to any applicable warranty, you may notify Apple and Apple will refund the purchase price, and Apple has no other warranty obligation whatsoever; Apple is not responsible for addressing any claim relating to the App, including product liability, regulatory non-compliance, or consumer protection claims; and Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.

11Changes and availability

We may update, change, or discontinue the App or any of its features at any time, including cloud sync. We may stop supporting older operating system versions.

Winder's core features work offline and your data remains on your device, so the App will normally continue to function even if we cease publishing updates. Export your data if you want a copy in a portable format.

12Changes to these Terms

We may revise these Terms from time to time. The current version is always available at winder.app/terms. Where changes are material, we will give notice in the App or on the website before they take effect.

Continued use of the App after the changes take effect means you accept the revised Terms.

13Termination

You may end this agreement at any time by deleting the App from your devices. To remove synced data, also delete Winder's data from your iCloud settings.

We may terminate your licence if you materially breach these Terms. On termination you must stop using the App and delete it.

14Disclaimer of warranties

To the fullest extent permitted by law, and without limiting your statutory rights as a consumer, the App is provided "as is" and "as available", without warranties of any kind, whether express, implied, or statutory, including implied warranties of merchantability, fitness for a particular purpose, accuracy, and non-infringement.

We do not warrant that the App will be uninterrupted, error-free, or free of harmful components, or that any defect will be corrected.

15Limitation of liability

To the fullest extent permitted by law, we will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of data, loss of profits, or loss of goodwill, arising out of or in connection with your use of the App.

Our total aggregate liability arising out of or in connection with the App will not exceed the greater of the amount you paid us for the App in the twelve months before the claim arose, or EUR 50.

Nothing in these Terms excludes or limits our liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for any other liability that cannot be excluded or limited under applicable law. If you are a consumer in the European Union, your mandatory statutory rights are not affected.

16Governing law and disputes

These Terms are governed by the laws of the Republic of Estonia, without regard to its conflict of law rules.

If you are a consumer resident in the European Union, you also benefit from the mandatory provisions of the law of your country of residence, and you may bring proceedings in the courts of that country. The European Commission's online dispute resolution platform is available at ec.europa.eu/consumers/odr.

Otherwise, the courts of Estonia have exclusive jurisdiction.

17General

If any provision of these Terms is found unenforceable, the remaining provisions remain in full force. Our failure to enforce a provision is not a waiver of it. These Terms are the entire agreement between you and us regarding the App.

You may not assign these Terms. We may assign them to an affiliate or in connection with a merger, acquisition, or sale of assets.

18Contact

Questions about these Terms: contact@perpet.io

Perpetio OÜ, registry code 14661567, VAT EE102136393, Kaupmehe tn 7-120, Kesklinna linnaosa, 10114 Tallinn, Harju maakond, Estonia.