S3DAT · Product studio
We build software that remembers.
We design, build and ship our own products for Mac, iPhone and the web. Two are on the Mac today. Four more are taking shape in the studio.
What we make
A good product disappears into your day. A browser that keeps your place. A memory your AI tools can share. A gym that grows with your training. We make a few things, and we make them properly. Then we keep making them better.
New · S3 Browser 2.4
Set up in six steps. Your things come with you.
A guided setup brings your bookmarks and history over from Safari, Chrome, Brave, Edge, Arc, Vivaldi, Opera or Firefox, sets your search engine and Home, and connects Claude Code and Codex with one button each. Passwords stay in Apple Passwords.
A real S3 Browser screen: pinned tabs on the left, tools on the right, the search field and spaces on top, and Home with pinned pages and groups.
- A six-step guided setup
- Import from seven other browsers
- Claude Code and Codex in one step
- Separate sign-ins per space
- A Dynamic Island for the browser
S3 Brain 0.4.7
One memory. Every AI tool you use.
S3 Brain keeps source-checked memory on your Mac and shares it with the AI tools you connect. Proposals, decisions and outcomes stay apart, each with the source behind it.
- Claude Code, Codex, Cursor and 15 more
- Every claim cites its source
- Correct, roll back or forget with a preview
- A readable Markdown folder you own
How we work
Shipped. Then shipped again.
S3 Browser went public on 8 October. Since then both Mac apps have had new versions every week, each one signed, notarized by Apple and published with release notes in plain words.
| S3 Browser 0.3.0 | 8 Oct |
|---|---|
| S3 Browser 0.3.1 | 8 Oct |
| S3 Browser 0.3.2 | 9 Oct |
| S3 Browser 0.3.3 | 9 Oct |
| S3 Browser 0.3.4 | 11 Oct |
| S3 Browser 0.3.5 | 12 Oct |
| S3 Browser 0.3.6 | 12 Oct |
| S3 Browser 0.3.7 | 12 Oct |
| S3 Browser 0.4.0 | 13 Oct |
| S3 Browser 0.5.0 | 14 Oct |
| S3 Browser 2.0 | 20 Oct |
| S3 Browser 2.1 | 22 Oct |
| S3 Browser 2.2 | 24 Oct |
| S3 Browser 2.3 | 24 Oct |
| S3 Browser 2.4 | 26 Oct |
| S3 Brain 0.4.2 | 11 Oct |
| S3 Brain 0.4.3 | 20 Oct |
| S3 Brain 0.4.4 | 21 Oct |
| S3 Brain 0.4.5 | 21 Oct |
| S3 Brain 0.4.6 | 22 Oct |
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Native first
Built with each platform’s own tools, so it feels at home from the first launch.
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Yours stays yours
S3 Browser and S3 Brain keep your data on your Mac. Nothing leaves unless you choose a service that needs it.
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Finished, then shipped
Every release is checked in the real app before it reaches you. Updates install only when you say so.