Overview

ArcBrush is a desktop application that processes images locally on your device. We collect only the minimum data necessary to provide our services and improve the application.

Anonymous Telemetry

ArcBrush sends an anonymous usage heartbeat once per hour while the application is running. This helps us understand how the app is used and prioritize improvements. The heartbeat contains:

Install ID — a randomly generated identifier (UUID) created on first launch. It is not derived from hardware IDs, MAC addresses, or any personal information.
App version — the version of ArcBrush you are running.
Operating system — "windows" or "macos".
Session duration — how many minutes the app has been open.
Node count — the number of nodes in your current graph.
Generation count — how many AI generations you have run this session.
Registered status — whether you have signed in to an account (true/false only, not your email).

Telemetry does not include your email address, images, prompts, file paths, file names, project content, or any personally identifiable information.

You can disable telemetry at any time in Settings. When disabled, no usage data is sent.

AI Generation Features

AI features are optional and require an account. When you use AI generation:

Data sent to AI providers

Text prompts — the prompt you write is sent to the AI model provider to generate an image.
Input images — for AI Image Edit, AI Remove Background, and AI Upscale, your input image is sent to the provider for processing.

Images and prompts are transmitted securely via HTTPS through our proxy server. We do not store your images or prompts on our servers — they are forwarded to the AI provider and discarded.

AI providers

AI generation is powered by third-party providers including fal.ai, Black Forest Labs (Flux models), and Google (Nano Banana 2). Your data is processed according to their respective privacy policies.

Local generation log

ArcBrush keeps a local log of your AI generations on your device. This log includes timestamps, prompts, model used, dimensions, credit cost, and file paths. This log is stored only on your computer and is never sent to our servers.

Send Feedback

The Send Feedback feature (Help menu) lets you report bugs, request features, or share general feedback. When you submit feedback, the following is sent:

Your message — the text you write.
System info — OS, app version, GPU model, and display resolution to help reproduce issues.
Graph context — node types and connection structure of your current graph (no image data, file paths, or prompts).

Feedback submissions are stored on our servers for the purpose of improving ArcBrush. No images or file contents are included.

Purchase Confirmation Emails

When you purchase a credit pack, a confirmation email is sent to your account email address showing the pack name, credits added, and new balance. These emails are sent only for completed purchases.

Account Data

If you create an account to use AI features:

Email address — used for authentication and account communication. Stored securely on our servers.
Authentication tokens — stored in your operating system's secure credential storage (Windows Credential Manager or macOS Keychain). We never store passwords.
Credit balance and purchase history — stored on our servers for billing purposes.

We do not sell or share your personal information with third parties.

Website

We do not use third-party tracking cookies or analytics services on our website.
Download counts are recorded with no personal information attached.

Data Security

All communication between ArcBrush and our servers uses HTTPS encryption. Account credentials are managed through industry-standard authentication. API keys are never stored on the client.

Data Retention

Telemetry events are retained in aggregate for product improvement.
Account data is retained while your account is active.
Credit purchase records are retained for accounting purposes.
AI-generated images are not stored on our servers after processing.
You may request deletion of your account and associated data at any time.

Your Rights

You have the right to:

Disable telemetry in Settings at any time.
Use the full editor without an account — all 71 non-AI nodes work without any data collection beyond optional telemetry.
Access your personal data.
Request deletion of your account and associated data.

Children's Privacy

ArcBrush is not directed at children under 13. We do not knowingly collect personal information from children.

Changes to This Policy

We may update this Privacy Policy from time to time. Updated policies will be posted at https://arcbrush.com/privacy.

Contact

For privacy questions or data requests, contact us at contact@arcbrush.com.