Sereo is the private, offline-first trading journal for self-directed investors. Log every trade in seconds, see instantly whether it worked, and build the discipline that separates consistent traders from the rest.
Sereo brings your journal, your numbers and your decision tools into one calm, premium app — designed so logging feels effortless and reviewing feels honest.
Add a trade in three fields — symbol, quantity, price. Average in, reduce or close; the position and P&L update themselves. Company logos, filters, sort and search across your whole history.
Realized and unrealized P&L, win rate, profit factor, expectancy and average R — plus an equity curve and a P&L calendar that show your real progress at a glance.
Position size, risk/reward, averaging, compounding, drawdown and Kelly. Options: payoff charts, vertical spreads, Black-Scholes greeks and expected move — every result explained.
A personal edge engine that learns from your own closed trades — on-device. It checks every new entry against your history and shows exactly which trades each insight is based on.
A FIFO tax report for the year — gains, losses, net and an estimated tax you can tune. Export to CSV for your accountant, and import to restore your history.
Bring your own free Finnhub key for live prices on open positions and your watchlist, company news, the earnings calendar and analyst consensus & price targets.
Trading at more than one broker means your real picture is scattered across apps and a spreadsheet you dread updating. Sereo ends that.
"Before you hit Save, Sereo tells you how you have historically handled exactly this kind of entry — and what to watch out for."
A trading coach that learns from your own closed trades, entirely on your device. It mirrors your statistics — it never predicts the market.
Oversized position, missing stop, risk/reward below your break-even, averaging into a loser, jumping back in right after a loss.
Weekdays that don't work for you, winners cut too early, losers held too long — surfaced from your real results.
Every insight shows the trades it's based on, and the coach stays quiet while your data isn't conclusive yet. It grows with your journal.
Research-grade analytics that turn your journal into a feedback loop — so every month you know what's actually working.
Thirteen calculators built into the journal — and four you can try free right now, no download needed. Decide whether a trade makes sense before you take it.
A clean FIFO tax report for the year, so you walk into tax season already prepared.
Sereo's edge is trust. No subscriptions to cancel, no account to create, and no trade data leaving your phone.
Free to download. Sereo Pro unlocks the extras with a single payment — no subscription, ever. What you buy stays unlocked.
Your trades, notes and balances stay on your device. No account, no cloud, no Sereo servers holding your history.
Every core feature works with zero network. Optional market data uses only your own free Finnhub key — never a shared server.
The core loop — log, review, decide — is fully usable for free. Pro unlocks research-grade depth with a single, one-time purchase.
Everything you need to start journaling seriously.
No subscription, ever. Pay once, keep it forever.
No hype, no signals — just the process behind consistent trading. A new guide every week.
The habit behind almost every consistent trader, and the fields that turn into insight.
The rules that keep you in the game long enough for an edge to show up.
Protect your account, your money and your data — and spot the scams.
All your trades — every broker and currency — in one private, offline-first journal. One-time purchase, no subscription.
