HammerA trading journal that's private by default.
Log a crypto or forex trade in 15 seconds on your iPhone. Review it on your Mac. Free and local-only forever. Pro tells you why you win — everywhere you trade, for the price of a coffee.
No account needed to start. Native iPhone, iPad and Mac apps coming to the App Store.Why we built this
“Most journals just collect data. They don't interpret it. A journal should answer: where am I leaking edge? Not just: what was my win rate?”
— r/DaytradingEvery other trading journal shows you more charts. Hammer reads your own trades and tells you, in plain language, what's costing you and what's working — ranked by money, not buried in a report you have to build yourself.
Two things nobody else in this market does.
It tells you why
Not just a win rate — findings ranked by money: “Breaking your rules cost you −$412 across 9 trades.” With the trades behind each one.
Private by default — even the AI
Free users never make an account. The written weekly review runs on your device's own model. Nothing about your trades leaves it unless you turn on sync.
Free is free, and offline
Unlimited trades, full metrics, calendar and export — on one device, forever. No trial, no trade cap, no nagging to upgrade.
One journal, every device
Pro syncs the same journal to iPhone, iPad, Mac and the web — log on your phone between trades, review on your Mac at night.
Funding fees, done right
Perp funding accrues every 8 hours and quietly eats returns. Hammer tracks it as its own line, not lumped into “fees” like everywhere else.
Built for crypto and forex
Spot, perps, futures and FX lots — average entries, partial exits and leverage handled at the execution level, not guessed at.
Your journal never leaves the device — not even for the AI.
Every competitor is a web app that requires an account and uploads your P&L to their servers. Hammer is local-first: free users never create an account, Pro users sync to their own devices, and the written weekly review runs on your device's own model — so even the AI never sees the cloud.
- No account. No upload. No one reading your P&L but you.
- Free is free — and offline. Pro is the same app on every device.
- The AI that reads your journal runs on your phone. It can’t phone home.
Free forever. Pro when you want to know why.
No trade cap on free. Pro is Insights, the written weekly review, and one journal across your devices — $9.99/mo or $79/yr.
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