Legal

Privacy Policy for Inkwell

Last updated: July 7, 2026

Rundquist Tech LLC ("we", "us", or "our") respects your privacy and is committed to protecting it through this Privacy Policy. This policy describes the types of information we collect, how we use it, and your rights.

This policy applies to your use of the Inkwell apps — the Inkwell macOS application and the Inkwell Reader for iPhone and iPad — along with their connected features and services (collectively, "Inkwell").

Inkwell does not track you across other companies' apps or websites. We do not sell your data, and we do not use your scripts to train any AI model.

1. Information We Collect

a) Required Telemetry

We collect a minimal set of technical signals essential for operating and improving Inkwell. This includes:

App launches, quits, and unexpected terminations
App version and version-install events
Crash reports, hang reports, and error logs
Platform and device model (e.g., "iPhone 17 Pro", "macOS 14")
Performance diagnostics
Writing-session counts and durations (how long a session lasted and why it ended). Never the words you write, your script titles, or file identifiers

These signals are collected automatically and cannot be disabled, as they are necessary for app stability, debugging, version-adoption tracking, and understanding overall product engagement. They never include the content of your scripts.

b) Optional Usage Analytics

Inkwell collects anonymized usage data to help us understand how the apps are used. This includes:

Feature usage (e.g., which tools are accessed most frequently)
File-format breakdown (e.g., proportion of .ink vs .fountain vs .pdf vs .fdx opened)
UI interaction patterns (e.g., which themes and reading sizes are selected)
Quill AI prompt types (kinds of queries, never the prompt text itself)

These analytics are tracked using PostHog and are tied to a non-personally identifiable, randomly generated install ID. They never include the content of your scripts.

Default behavior: Inkwell Reader for iPhone and iPad has anonymous analytics enabled by default on first launch; the Inkwell macOS app has them disabled by default. In both apps you may enable or disable usage analytics at any time in the app's Settings → Privacy panel. Disabling analytics fires a one-time opt-out event so we have an audit trail of your choice.

Analytics never include your script content. Disabling analytics does not affect the required-telemetry signals listed above, which we need to keep the app stable.

2. Content and Data Handling

a) Script Content

Inkwell does not store your scripts or creative content on our servers. Scripts live on your device.

However, when you use Quill:

Portions of your script may be transmitted to third-party language-model providers (e.g., OpenAI, Google Gemini) so the model can respond to your questions about the script.
Those providers may temporarily retain the content as required for processing, subject to their own privacy policies.
We do not use your content to train or fine-tune any model.
Quill on iPhone and iPad is read-only — it discusses the script but cannot edit it. The agentic editor lives on macOS.

Quill is opt-in: it activates only when you sign in and chat. If you never sign in, no script content leaves your device.

b) AI Responses

We may store the results of your AI interactions (e.g., suggestions, completions) for the purpose of:

Debugging
Crash reproduction
Product improvement

These responses are not cached for reuse and are not linked to your script content or identity.

3. On-Device Data (Inkwell Reader for iPhone & iPad)

The iOS Reader stores the following entirely on your device. None of it is uploaded to our servers:

Recents list— file names and last-opened timestamps for documents you've opened, plus a security-scoped bookmark so the file can be re-opened.
Scroll position — the last-viewed paragraph in each document, so you return to where you left off.
Sides selection— which character(s) you've chosen for the sides view, per document.
Reading preferences — your theme and reading-size choices.

Files opened from Files.app, iCloud Drive, or AirDrop are accessed in place via Apple's security-scoped bookmark system. We never copy a script's contents into our servers.

4. Use of Third-Party Services

Inkwell uses the following service providers:

Google Firebase – for authentication, account management, and messaging
Sign in with Apple and Sign in with Google – optional authentication providers. We receive only your email and a user identifier; we never see your provider password.
PostHog – for anonymous product analytics. Subject to your in-app Privacy toggle (see Section 1b above).
OpenAI, Google Gemini, Anthropic, and other LLM providers – for Quill AI-driven features. Engaged only when you actively use Quill chat.
Stripe – for subscription billing if you choose to subscribe. Payment-card details are handled by Stripe and never touch our servers.

These providers may collect or process information subject to their own privacy policies. We do not control their practices.

5. Data Security

We use reasonable administrative, technical, and physical safeguards to protect your information. However, no system can be 100% secure, and we cannot guarantee the absolute security of your data.

6. Your Rights & Choices

You have the following rights, depending on your jurisdiction:

To know what information we collect
To request deletion of your anonymized telemetry ID
To disable optional analytics in the app's Settings → Privacy panel
To decline AI features and use Inkwell entirely offline
To delete your account. Deletion is initiated from within the apps (Settings → Manage Account → Delete Account) and completes on the web for verification.

If you have questions or requests, contact us at privacy@rundquist.tech.

7. Updates to This Policy

We may update this Privacy Policy from time to time. When we do, we'll revise the "Last updated" date and may notify you in-app or via our website at https://inkwell.app/privacy.

8. Contact Us

If you have questions about this policy or our data practices, contact:

Rundquist Tech LLC
4546 El Camino Real B10 #781
Los Altos, CA 94022

Email: privacy@rundquist.tech