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Privacy Policy

Last updated: June 8, 2026

1. Introduction

Slidefast ("we," "us," "our") operates slidefast.app. This Privacy Policy explains how we collect, use, and protect your information when you use our service. We built Slidefast with privacy as a core value. We collect the minimum data necessary to operate the service.

By using Slidefast, you agree to the collection and use of information in accordance with this policy.

2. Information We Collect

Account Information

When you create an account, we collect your email address and a hashed version of your password. We never store your password in plain text.

Photos You Upload

Photos you upload are processed server-side to generate your slideshow. Staging images are stored temporarily and deleted immediately after your slideshow is published. The generated slideshow file (which contains your images as base64 data) is stored for up to 7 days and then permanently deleted.

Slideshow Content

We store the caption text, transition settings, and optional password hash you configure for each slideshow. This data is deleted when the slideshow expires after 7 days.

Payment Information

Credit card and payment information is processed directly by Stripe. We do not store your payment card details on our servers. We receive a record of completed transactions (amount, timestamp, credit pack purchased) from Stripe.

Usage Data

We use Vercel Analytics to collect anonymized, aggregated usage data (page views, general geographic region). This data cannot be linked to individual users or photos.

3. How We Use Your Information

  • To create and manage your account
  • To generate and serve your slideshow
  • To process payments and maintain your credit balance
  • To send transactional emails (purchase confirmations, account notices)
  • To operate, maintain, and improve the service
  • To comply with legal obligations

We do not sell your personal information to third parties. Ever.

4. Your Photos and AI Training

Your uploaded photos are never used to train artificial intelligence or machine learning models. Ever.

We do not analyze, process, or retain your images for any purpose beyond generating and serving your slideshow. Photos uploaded to Slidefast are not shared with any third party for any purpose other than the cloud storage and content delivery infrastructure required to operate the service.

5. Data Retention and Deletion

  • Staging images: Deleted immediately after your slideshow is published.
  • Published slideshow files: Permanently deleted after 7 days.
  • Caption and settings data: Retained as metadata after expiry for account history; image data is gone.
  • Account data: Retained until you request account deletion.
  • Payment records: Retained for 7 years as required by financial regulations.

To request deletion of your account and all associated data, email us at [email protected]. We will complete the deletion within 30 days.

6. Cookies

We use cookies strictly for session authentication (keeping you logged in) and slideshow password authentication (remembering you've unlocked a password-protected slideshow). We do not use tracking or advertising cookies.

7. Third-Party Services

We use the following third-party services to operate Slidefast:

  • Supabase — authentication and database (EU and US regions)
  • Cloudflare R2 — file storage
  • Vercel — hosting and deployment
  • Stripe — payment processing
  • Resend — transactional email
  • Vercel Analytics — anonymized usage analytics

Each of these providers has their own privacy policy. We select providers with strong privacy commitments and process only the minimum data required for each service to function.

8. Security

We implement appropriate technical and organizational measures to protect your information, including encrypted connections (HTTPS), hashed passwords, and HTTP-only cookies. No method of transmission over the internet is 100% secure, but we take reasonable steps to protect your data.

9. Children's Privacy

Slidefast is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe we have collected such information, please contact us at [email protected] and we will delete it promptly.

10. Your Rights

You have the right to:

  • Access the personal information we hold about you
  • Correct inaccurate personal information
  • Request deletion of your account and personal data
  • Export your account data

To exercise any of these rights, contact us at [email protected].

11. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify registered users by email at least 30 days before material changes take effect. The updated date at the top of this page reflects the most recent revision.

12. Contact

the operator of Slidefast.app
[email protected]