Native desktop widget that turns your claude.ai subscription usage into something you can actually pace yourself by.
Burn-rate projection, pace markers, sparkline trends, and five hand-tuned glass themes. Mac + Windows. No telemetry.
Two builds. Pick the one that matches your OS.
Native Mac app, signed with Developer ID and notarized by Apple. Install it once and it updates itself: it checks daily when automatic checks are on, or right away from Check for Updates… in any Sanduhr menu.
Native .NET and WPF with real Win11 Mica glass. Windows Credential Manager for the session cookie.
A fresh install starts with Desk on and your meters already there. The widget becomes the toolbox you open for the deep tools.
Your session and weekly limits drawn as bars under your windows, each with a pace tick and its reset time, in any corner. A limit that's nearly full with plenty of time left turns red, and you set how full and how far from a reset, per limit. A two-finger click on a meter opens that limit's own menu.
Sign in to claude.ai in a Sanduhr window and your session key is saved the moment you're in: no DevTools, no copying cookies. The window keeps nothing once it closes. Accounts made with Google sign in through your browser and paste the key, because Google refuses sign-in inside apps.
Add each Claude login under a name, like Work or Team, and switch from the widget's account chip, any Sanduhr menu, or the account name on Desk. Each account keeps its own history, so the sparklines never mix. Follow the account I'm using, off by default, switches for you when the signal is clear.
A limit that looks temporary, like a promotion, can be hidden from that limit's two-finger menu, and it comes back on its own when it resets or refills. Session, weekly and the model limits always show. The menu bar shows session, weekly, whichever is higher, or rotates between them.
The time, today's next meetings with one-click join, and a daily line of your own, in the handwritten EsteFont that ships with the app. Calendar access is asked for only if you turn meetings on, and nothing leaves your Mac. Corners on the Dock's side stay clear of it, and rise with a Dock that hides.
On MacBooks with a camera notch, pick what the left wing, the right wing and the strip under the camera show: your next meeting, the time, your meters, your message, what's playing, or nothing. A camera light around the notch lights your face when any app turns the camera on. Off until you switch it on, no camera permission needed. Test Glow in Settings shows you the notch glow once before you turn any of it on. With the Claude Code integration, the notch can also glow when a Claude session is waiting on you.
The song or video playing on your Mac, from Spotify, Apple Music, YouTube Music, Pandora or a browser tab, on a notch wing or a Desk corner with a moving position bar. Click it to play or pause. Titles never leave your Mac and are never saved.
Settings → Integrations installs your meters above Claude Code's prompt, a statusline, the notch glow when a session needs you, and an MCP server so Claude can ask about your usage. Already have a statusline? Sanduhr can combine its meters with yours, keeping the segments you pick, instead of replacing it. Remove takes out only what Sanduhr added and restores anything it replaced.
Small live cards on the notch or the Desk for work in flight: a CI run, a deploy, a long test, with its state, time so far and progress. Agents can put one up through the MCP server, and Claude Code's own background tasks can show up on their own. Both switches are off until you turn them on.
With the MCP server installed, Claude Code can suggest Desk messages, with effects like a glow or a line written in by hand, and propose widget themes as a live preview. Nothing changes until you approve it.
Each account chooses what Sanduhr keeps: 30 days of meter history, a local record of its Claude Code sessions (tokens by day, model and project, never what was written), and what Claude may see, off by default. The Claude Usage page shows it as overview, trends and sessions, with CSV export.
Always shown, hidden while Desk is on, or only when you open it. Click the meters and it appears beside them. Deep Work, the Pacing Calculators and Cooldown Snake open from the Tools menu, even with the widget hidden.
A gallery of every theme, yours included, with a preview of each and one click to apply. Hover one for a line on its look, and your own theme files can carry one too. Match Desk draws the widget in your Desk font and ink, so it reads like part of the desktop.
A pace warning when a limit is on course to run out before it resets, quiet hours and a sound of your choice, all off until you turn them on. Every setting sits in one window, Updates and About included, and Option+S opens it while Desk is on.
Sanduhr does the pacing math so you don't have to.
"Hits 100% in ~4h 22m at current pace" warns you before you run dry, not after.
Colored ticks show where "on pace" is right now — pace by eye, not by math.
Per-tier velocity trends, 30 days per account on Mac, so you can see whether you're accelerating or cooling off.
Obsidian, Aurora, Ember, Mint, Matrix — plus unlimited user-authored JSON themes via Settings or a drop-in file.
Hand any chat agent a reference image or vibe description. Get back a drop-in theme JSON.
Win11 Mica glass. macOS NSVisualEffectView. No Electron. No WebView.
Your Claude Fable 5 allowance, tracked automatically. When Anthropic adds a limit for any new model, its meter just appears — no update needed.
Local Claude Code logs become a dashboard: sessions by project with agent roll-up, weekly trends, a clickable calendar, sent/received splits, CSV export — and an opt-in vault that outlives the CLI's 30-day log cleanup.
A toast and a soft procedural chime when a pool crosses your warn or urgent line. Per-model meters stay politely silent by default.
Captured from Sanduhr 2.6, with demo meetings.
Accounts, the menu bar and the meters.
A taste of what ships in the box.
No telemetry. No analytics. No crash reporter. No usage metrics. 626 Labs has no server and no pipeline to receive data from Sanduhr — even in principle.
The app talks to claude.ai over HTTPS, using your own session cookie, to read your own usage numbers, and checks for its own updates. Your cookie stays on your machine: in the macOS Keychain on Mac, in Credential Manager on Windows. On Mac, Settings → Accounts → Sign Out removes it from this machine; your claude.ai session itself stays signed in. Uninstalling doesn't clear the Keychain or Credential Manager, so sign out first if you're leaving.
On Mac, Claude sees your usage only if you install Sanduhr's MCP server and choose, per account, to share meters or activity. Sharing is off by default, and what Claude Code reads goes to Anthropic like the rest of your conversation, not to us.
Looking for the full pitch with all the screenshots, themes gallery, and docs?
Open the full landing page →Every Microsoft Store install since launch, plotted by country. Dot area is proportional to install count.
626 Labs