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Privacy Policy

Last updated: December 2024

The Short Version

Postiller is designed with privacy at its core. Your data never leaves your device. We don't have servers that store your content. We don't track you. We don't sell your data because we don't have your data.

What Data Stays on Your Device

  • All bookmarks you save
  • All ideas and notes you capture
  • All posts you generate
  • Your custom personas and settings
  • Your API keys (encrypted and stored locally)
  • On-device embeddings for semantic search

This data is stored using Apple's SwiftData framework and never transmitted to any external servers owned by Postiller.

Third-Party AI Services

When you use AI content generation features, your prompts and content are sent directly to the AI provider you've configured (OpenAI, Anthropic, Google, or xAI). This communication happens directly between your device and their servers using your own API keys.

We do not intercept, store, or have access to these communications. Please review the privacy policies of the AI providers you choose to use:

On-Device AI Features

Features powered by on-device AI (such as semantic search using Apple's foundation models) process data entirely on your device. No data is sent to external servers for these features.

Website Analytics

This website (postiller.com) may use basic analytics to understand visitor traffic. The Postiller app itself contains no analytics or tracking.

Email List

If you sign up for updates, we store your email address with SendGrid for the sole purpose of sending you product updates. You can unsubscribe at any time. We will never sell or share your email address.

No Ads

Postiller does not display advertisements. We will never show ads or sell advertising space within the app.

Data Portability

Since all your data is stored locally on your device, you maintain full control over it. Your data is backed up through iCloud if you have iCloud backup enabled for the app.

Contact

If you have questions about this privacy policy, please contact us at privacy@postiller.com

Changes to This Policy

We may update this privacy policy from time to time. We will notify users of any material changes by updating the "Last updated" date at the top of this page.