Privacy Policy

This Privacy Policy describes how Tachi handles information when you use the Tachi iOS application and the Tachi web app at tachiapp.com (together, “Tachi”). Tachi is operated by Emin Berkay Dağlar, an individual sole developer (“we”, “us”). You can reach us at support@tachiapp.com.

Tachi is built to work on your device. We do not require an account, and we do not ask for your name, address, location, contacts, photos, microphone, or camera.

Summary

• No account is required to use Tachi.
• Your reading content, settings, and progress stay on your device.
• Tachi contains no advertising and no analytics or tracking SDKs.
• The web app is free. In the iOS app, subscriptions are processed by Apple and managed via RevenueCat; we never see or store your payment details.
• We do not sell your data.

Information stored on your device

The following is stored locally — in the app's storage on iOS, and in your browser's local storage on the web — and is not transmitted to us:

• App settings (language, theme, haptics, sound).
• Reader preferences (words per minute, chunk size, font, reader theme, and similar options).
• Texts you paste or import, including PDF and EPUB files. Files are read and converted to text on your device; they are never uploaded.
• Progress such as your reading position, completed sessions, best times, and onboarding state.

On iOS, uninstalling the app removes this data; iCloud or device backup behavior is controlled by your iOS settings. On the web, you can erase it at any time with Settings → Reset all dataor by clearing the site's data in your browser. Data in one browser is not synced to other browsers or devices.

Information we receive

1. Subscriptions (iOS app only)

If you purchase a Tachi subscription, the purchase is processed by Apple under your Apple ID. Apple charges your payment method and provides purchase metadata (such as product identifier, country, and transaction status) so paid features can be unlocked. We do not see your payment card, billing address, or Apple ID.

We use RevenueCat as our subscription processor to verify your entitlement. RevenueCat assigns the app install a random, anonymous identifier and receives the subscription metadata that Apple provides. This identifier is not your Apple ID, email, advertising identifier, or phone number.

2. Website server logs

When you load tachiapp.com, our hosting server processes standard request data — IP address, browser user agent, requested page, and time — to deliver the site and keep it secure. These logs are short-lived and are not used to profile or track you. The website sets no advertising or analytics cookies.

3. Messages you send us

If you email us or send feedback (which opens a message in your own email app), we receive your email address and whatever you write, and use it only to reply and to improve Tachi.

What we do not collect

• We do not collect your name, address, phone number, gender, age, or precise location.
• We do not access your camera, microphone, photos, contacts, or calendar.
• We do not request the IDFA (App Tracking Transparency identifier) and we do not track you across other companies' apps or websites.
• We do not collect product analytics or usage telemetry.
• We do not show third-party ads and we do not sell personal information.

How we use information

• To verify your subscription and unlock paid features in the iOS app.
• To deliver and secure the website.
• To respond to feedback and support requests.
• To comply with legal obligations and enforce our Terms.

Legal bases (EEA / UK)

Where the GDPR applies, we rely on: performance of our contract with you (delivering subscriptions you purchase), our legitimate interests (operating and securing the website, answering your messages), and compliance with legal obligations.

Sharing

We do not sell or rent personal information. Limited data is handled by these service providers so they can perform their function:

• Apple Inc. — app distribution and subscription billing.
• RevenueCat, Inc. — subscription entitlement management.
• Our hosting provider — serving the website.

We may also disclose information if required by law, to protect our rights, or in connection with a merger, acquisition, or sale of assets, in which case we will continue to protect your data consistent with this Policy.

International transfers

Our service providers may process data in the United States and other jurisdictions. Where applicable, we rely on Standard Contractual Clauses or equivalent safeguards offered by the provider.

Retention

• On-device data: kept until you delete it, clear your browser data, or uninstall.
• Subscription records: retained while your subscription is active and afterward as required for accounting and tax law.
• Server logs: retained briefly for security and troubleshooting.
• Support email: retained while it is useful for support; you may ask us to delete it at any time.

Your rights

Depending on where you live, you may have rights to access, correct, delete, port, or restrict the processing of your personal data, and to object to certain processing. To exercise these rights, email support@tachiapp.com. Because Tachi has no accounts and keeps your content on your device, in most cases we hold no personal data about you at all.

California residents

We do not sell or share personal information for cross-context behavioral advertising. California residents have the right to request access, deletion, and correction of personal information and to be free from discrimination for exercising those rights.

Children

Tachi is not directed to children under 13 (or under 16 in the EEA / UK). We do not knowingly collect personal information from children. If you believe a child has provided us information, please contact us and we will delete it.

Security

All connections to tachiapp.com and to our service providers use HTTPS. No method of transmission or storage is perfectly secure, but we work to protect your information against unauthorized access.

Changes

We may update this Policy. When we do, we will revise the “Effective” date at the top of this page. Material changes will be highlighted in the app or on this page.

Contact

Operator: Emin Berkay Dağlar (sole developer).
Email: support@tachiapp.com.