A winning result can still reveal poor execution.
The voice-first trading journal
Capture the whybehind every trade.
Record your reasoning by voice, connect it with confirmed trade details and build a journal that helps you understand how you really trade.
No payment card required Private account workspace
Execution detectedMNQ · Long · 2 contractsFill confirmed by connected broker
Trade capturedWhat made this entry valid?
Tap to record while the decision is fresh.
00:38
Read-only connection
Built around the tools traders already use
MetaTrader 5
cTrader
NinjaTrader
Tradovate
TradeStation
TopstepConnection methods vary by platform. See current broker support
The problem
Your broker records what happened. It does not record why.
Trade history can show your entry, exit and final result—but it cannot explain the thinking that produced them.
What you saw before enteringWhy you believed the setup was validWhether you followed your rulesWhy you changed the stop or targetWhether the result came from the strategy or your execution
Jerno preserves the thinking behind the trade before hindsight changes the story.
How Jerno works
From trading decision to useful evidence.
Four simple steps keep the record honest without turning journaling into another administrative task.
Product story01 / 04
Reasoning capturedOriginal reasoning preserved · Voice note 00:38
Decision quality, not hindsight
Remember the trade as it was—not as the result made it feel.
A profitable trade is not always a good trade. A losing trade is not always a bad trade.
Jerno helps you review the quality of the decision separately from the financial outcome, giving you a more honest picture of your trading process.
Process reviewSeparate the decision from the result
A valid setup can fail without becoming a bad decision.
Core features
Everything needed to review the complete trade.
Capture the thought, confirm the facts and keep every stage of the trade connected.
Voice-first journaling
Capture your reasoning naturally without completing lengthy forms.
Structured trade entries
Turn voice or typed notes into an organised, editable journal entry.
Annotated trade charts
Review your entry, stop, targets and exit directly on the chart.
Trade progression
Document stop changes, partial exits, target adjustments and management decisions.
Performance analytics
Review P&L, win rate, profit factor, expectancy, drawdown and other important metrics.
Trading playbooks
Define setups, create rule checklists and measure how closely each trade followed the plan.
Analytics and playbooks
Understand more than your P&L.
See which markets, setups and behaviours are producing your results.
Your strongest and weakest setupsThe difference between valid losses and execution mistakesWhether high-conviction trades perform betterHow consistently you follow your rulesWhere drawdowns and difficult trading days beginWhether you have enough recorded trades to draw a useful conclusion
The goal is not to predict your next trade. It is to understand the evidence created by your previous ones.
Broker connections
Connect execution facts without giving up trading control.
Supported read-only connections can bring confirmed trade activity into Jerno and, when notifications are enabled on a supported device, prompt you to record your reasoning after a trade is placed.
Jerno can observe supported trading activity, but it cannot place, modify or cancel trades.
MetaTrader 5TradovateNinjaTraderTradeStationTopstepX
Connection methods and availability vary during beta.How connections work 
Mobile and desktop
Record quickly. Review properly.
Capture your reasoning from your phone while the trade is fresh. Return to your journal on desktop when you are ready to study charts, review performance and analyse your process in greater detail.
Your journal stays connected across supported devices.Privacy and control
Your trading journal remains yours.
In a signed-in account, recordings, charts and journal entries are kept in your private workspace. Demo information remains local to the browser. Jerno is not a social network, trading-signal service or copy-trading platform.
Read the privacy policyExport your journal informationCorrect confirmed trade detailsDelete individual entriesRequest permanent account deletion
Free during beta
Build a clearer record of the trader behind the trade.
Capture your reasoning, confirm the facts and start learning from your own trading evidence.
Jerno is a journaling and retrospective analysis tool. It does not provide trading signals, financial advice or guarantees of future performance.Join the free beta No payment card required