A storm-shrouded peak at dusk

See the plan,
not just the price

The instrument between you and the market

Tarn is a Mac instrument. The download link will be waiting when you’re at your desk.

Get Tarn for macOSSee the instrument ↗
BinanceHyperliquid
Why Tarn exists

Tarn is a native macOS app for tracking leveraged crypto positions on Bybit, Binance and Hyperliquid.

A private instrument for tracking and journaling your own portfolio, a daily practice of intention and honest reckoning.

Not a dashboard.

Watching is not a plan

Most crypto tools are dashboards: built to be watched, not used, green to pull you in and red to shake you out. Watch one long enough and you start to mistake watching for a plan.

  • Positions scattered across exchanges and a cold wallet, and no two screens agree.
  • A trade closes and the reason you took it is already gone. Nothing is learned.
  • One screen-share, one glance over a shoulder, and your whole net worth is public.
  • The figure moves all day. Almost none of it is a decision.
Your route, rendered on the position.
The instrument

The whole climb,
in one frame

Six elevations in one window: every position you already hold, drawn against its route.

Walk the instrument, surface by surface ↗

A stark black-and-white snow-laden peak
What it is built on

Held to three standards

German excellence

Relentless removal until only what the decision needs remains. Nothing decorative, nothing unearned.

Bloomberg resilience

Never wrong, never dark. Every figure correct or honestly marked stale. The instrument never misleads you.

The mountain

Six elevations, one ascent. From Camp to Summit, plan to reflection, every surface coheres to the climb.

Go deeper

Read before
you buy

This page is the short version. Every claim on it has a longer answer, and the answers hold.

01The instrumentEvery surface, walked in order. Built to terminal standard.02Connected venuesWhat Tarn reads, and how completely it reads it.03ComparedTrackers, journals, and the spreadsheet. Where each one stops.04Questions, answeredCustody, correctness, longevity, the permit. In plain words.
The instrument

Tarn is not a tracker. It is the practice behind the trade.

Owned outright. Run entirely on your hardware. Built to be used for years, not checked for minutes.

Get Tarn for macOSSee the instrument ↗

Built by one trader, by hand, and used every day by the person who makes it. Every elevation, every figure, every surface was designed against a decision it has to serve. Nothing here is a default.

Read the full manifesto ↗
The permit

If it is for you,
you already know.

Install the instrument and study every elevation. Unpermitted it runs inert, the complete build with no venues attached. The permit binds your accounts and brings it live.

Tarn for Mac
$500
The full instrument. Unlocked once.
  • Binds your accounts and brings the instrument live
  • Connects read-only to Bybit, Binance and Hyperliquid
  • It can never place a trade or move a coin
  • No account, no backend, runs on your hardware
  • Lifetime updates, works offline
Own it

Checkout by Creem · key by email in minutes · works on up to 3 Macs

Or install the instrument first ↗
30-day money-back guarantee
macOS 26+ · Apple silicon · no account · no subscription
TermsPrivacyRefund
A darkened massif under heavy cloud
Get Tarn

Begin the climb.

Install the instrument · the permit brings it live
Get Tarn for macOSOwn it — $500