Question 1

What is Postiller?

Accepted Answer

Postiller is a privacy-first iOS app that helps you transform bookmarks, notes, and ideas into polished social media content. It uses AI to assist with content creation while keeping all your data on your device.

Question 2

Which devices does Postiller support?

Accepted Answer

Postiller is available for iPhone and iPad running iOS 17 or later. We plan to support Mac and Android in future updates.

Question 3

Do I need an account to use Postiller?

Accepted Answer

No. Postiller works entirely offline and locally on your device. There's no account creation, no login, and no cloud sync required.

Question 4

Where is my data stored?

Accepted Answer

All your data—bookmarks, ideas, posts, personas, and API keys—is stored locally on your device using Apple's SwiftData framework. We don't have servers that store your content.

Question 5

Do you collect any analytics or tracking data?

Accepted Answer

No. Postiller contains no analytics, no tracking, and no telemetry. We have no way to see what you're doing in the app.

Question 6

What happens when I use AI features?

Accepted Answer

When you generate content, your prompts are sent directly from your device to the AI provider you've configured (OpenAI, Anthropic, Google, or xAI). This communication bypasses our servers entirely—we never see your content.

Question 7

Are my API keys secure?

Accepted Answer

Yes. API keys are encrypted and stored locally in your device's secure storage. They're never transmitted to our servers.

Question 8

What is BYOK (Bring Your Own Keys)?

Accepted Answer

BYOK means you connect your own AI provider accounts (like OpenAI or Anthropic) to Postiller. You pay those providers directly at their standard rates, and we never touch your API keys or content.

Question 9

Which AI providers are supported?

Accepted Answer

Postiller supports OpenAI (GPT-4, GPT-4o), Anthropic (Claude), Google (Gemini), and xAI (Grok). You can configure multiple providers and choose which one to use for each task.

Question 10

How much does AI usage cost?

Accepted Answer

You pay AI providers directly at their standard rates. For typical personal use (a few posts per day), expect to spend $1-5 per month. Heavy users might spend more. Check each provider's pricing page for details.

Question 11

Can I use Postiller without AI?

Accepted Answer

Yes! You can use Postiller to organize bookmarks and ideas, use the Safari Share Extension, and benefit from semantic search—all without any API keys. AI is only needed for content generation.

Question 12

What is on-device AI?

Accepted Answer

Features like semantic search use Apple's built-in foundation models that run entirely on your device. These features are free, require no API keys, and work offline.

Question 13

How does the Safari Share Extension work?

Accepted Answer

When you find an interesting article or page in Safari, tap the Share button and select Postiller. The app automatically extracts the title, content, and metadata so you can reference it later.

Question 14

What are personas?

Accepted Answer

Personas are custom voice profiles you create to guide AI content generation. Instead of generic output, you can define specific tones, styles, and characteristics so generated content sounds authentically like you.

Question 15

How does semantic search work?

Accepted Answer

Semantic search understands meaning, not just keywords. You can ask questions like "articles about productivity tips" and find relevant content even if those exact words don't appear in your bookmarks.

Question 16

Can I organize content with tags or folders?

Accepted Answer

Yes. You can add hashtags to ideas and bookmarks to categorize them. Postiller also automatically suggests connections between related content.

Question 17

How much does Postiller cost?

Accepted Answer

Postiller is a one-time purchase of $99. No subscriptions, no recurring fees. You own it forever.

Question 18

Why a one-time purchase instead of subscription?

Accepted Answer

We believe you shouldn't pay rent on software that runs on your own device using your own API keys. A one-time purchase aligns our incentives—we make money by building something worth buying, not by locking you into recurring payments.

Question 19

Are there any in-app purchases?

Accepted Answer

No. The $99 purchase includes everything. There are no premium tiers, no feature unlocks, and no upsells.

Question 20

What about refunds?

Accepted Answer

Refunds are handled through Apple's App Store according to their standard refund policy. Contact Apple Support if you need assistance.

Question 21

Will I get future updates?

Accepted Answer

Yes. Your purchase includes all future updates to Postiller at no additional cost.

Question 22

How do I get help if I have issues?

Accepted Answer

Email us at help@postiller.com. We typically respond within 24-48 hours.

Question 23

Is there a community or forum?

Accepted Answer

Not yet, but we're considering it based on user interest. For now, reach out via email.

Question 24

Can I request features?

Accepted Answer

Absolutely! We love hearing from users. Send feature requests to feedback@postiller.com.

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