Privacy Policy

Last updated: 13 August 2026. This policy covers the Silo Studio app for macOS and this website.

The short version

Silo Studio generates images entirely on your Mac. There is no account, no sign-in and no server of mine anywhere in the picture. I do not collect, receive, store or transmit any personal data, and there is no analytics, crash reporting, advertising or telemetry of any kind in the app. In App Store terms, the answer to every question is Data Not Collected.

I have no way to see your prompts, your images, your settings or how you use the app, because none of it is ever sent to me.

What stays on your Mac

Everything the app produces or remembers is stored in its own folder in your Library, on your own disk:

• Your images, as ordinary files you can open, copy or delete with the Finder.
• Your prompts, seeds and settings, in a local database beside them.
• The models you downloaded, along with any styles or model folders you imported yourself.

Deleting the app’s Library folder removes all of it. Nothing is kept anywhere else, and there is no copy for me to delete on your behalf.

Every connection the app makes

The app is not silent on the network, and it would be dishonest to imply otherwise. It makes exactly two kinds of outbound request, both of which you start, and neither of which carries an image, a prompt or a file from your library.

1. Hugging Face — downloading models

When you choose a model to download, the app fetches its weight files from huggingface.co. That request carries no identifier of yours beyond the ordinary metadata any web request carries, such as your IP address, which Hugging Face handles under its own privacy policy.

Some models are gated and require a Hugging Face access token. If you choose to use one, you type the token into Settings yourself. It is stored in the macOS Keychain, and it leaves your Mac only as an Authorization header sent to Hugging Face — never to me, and never anywhere else. No model preselected during setup requires a token, so you can use the app without ever entering one.

2. civitai.com — finding a style, if you ask

If you ask the in-app assistant to find a style (a LoRA), it searches civitai.com and shows you what it found as text: the file’s name, its base model, its size and a link to its page. Nothing downloads until you press Run, and no third-party image is ever displayed inside the app.

One other request goes to the same service: when you import a style file from your own disk, the app looks it up by the file’s SHA-256 hash to fetch a thumbnail for it. That hash identifies the file, not you.

And nothing else

No image you generate, no prompt you write, no file in your library and no record of what you did is ever uploaded, to me or to anyone. The app contains no browser, no web view, no sharing feature, no feed and no way for one user to see another user’s work.

Third-party services

Once a request reaches Hugging Face or Civitai, it is governed by their policies rather than by this one:

• Hugging Face privacy policy
• Civitai privacy policy

If you download the app from the Mac App Store, Apple handles the purchase and download under Apple’s privacy policy. I receive only the anonymous, aggregated sales figures Apple shows every developer; they identify no one.

The models themselves

The models Silo Studio runs are third-party open-weight files that run locally on your Mac. They are data loaded by the app, never executed as code, and each carries its own licence — the app names the restrictive ones, such as non-commercial use, before you download. Running a model sends nothing anywhere.

Children

Silo Studio is rated 18+ and is not directed at children. I do not knowingly collect information from anyone, of any age, because I do not collect information at all.

This website

siloformac.com is a set of static pages hosted on Vercel. It sets no cookies, runs no analytics and embeds no third-party scripts or trackers. Vercel records standard server request logs, as any web host does, under its own privacy policy.

Changes to this policy

If the app ever starts doing something this page does not describe, this page changes in the same release — and the date at the top changes with it.

Contact

Questions about this policy, or about anything on it, go to support@siloformac.com.