kappi vs TraderSync: Does an Imported Journal Prove Anything?

	kappi	TraderSync
Price	$15/month ($12.75 via a referral link)	$29.95/mo
How data arrives	You commit it before the fact	Imported from the broker afterwards
What the timestamp means	When you called it	When the order filled
Fixed once committed	Yes — the commit is sealed	No — journals are yours to edit
Checkable by a stranger	Yes — anchored Merkle root	No
Analytics depth	PnL, RME, R:R, SPX correlation	Their core product

What is TraderSync for?

Reviewing your own trading. It pulls executions in from your brokerage, tags them, and reports on what your setups actually do — the loop every profitable trader eventually runs, and the reason journals are worth $29.95/mo. Nothing on this page argues that reviewing your fills is optional.

But a journal's audience is you. TraderSync is answering "which of my setups makes money?" and it answers it well. kappi is answering a question no import can reach: "did this person say so beforehand?"

Why can an imported journal not prove a track record?

Because import runs backwards through time. The broker hands over a fill that already happened, and every interpretive field around it — the thesis, the stop, the target, the reason — is typed in afterwards by the person the record is about. Nothing in the file distinguishes a plan that was written before the trade from one written after the fact was known, because both are typed at the same keyboard into the same editable row.

That is not an accusation of dishonesty. It is a statement about what the artifact can carry. Self-deception does not need intent: a losing trade re-tagged as "outside my rules" three days later feels like accurate bookkeeping while it happens, and the journal has no way to disagree.

Broker-import journals prove what you did after the fact, from data you control. kappi timestamps what you said you would do, before you knew how it would turn out, on a record you cannot edit.

What kappi records instead

A commit is sealed before the fact and released on a time-capsuled delay.

Every sealed commit is hashed into a Merkle tree and anchored to Hedera, so the log is append-only and independently checkable.

The sequence is the whole product. A commit exists, sealed and timestamped, while the outcome is still unknown — so when it opens, the only thing it can say is what you thought at the time.

What does the price difference actually buy?

TraderSync is $29.95/mo, or $359.40 a year. kappi is $15 a month, $180 a year, and $153 a year through a referral link — roughly half. But they are not substitutes, so the more useful framing is that running both costs $539.40 a year: the journal reviews your execution, the recorder establishes that you called it. Plenty of traders need exactly one of those.

When should you pick TraderSync?

When the problem is analysis, not proof. If you have a hundred trades and no idea which setup is carrying the account, an importing journal with real reporting is the correct tool and kappi is not a substitute for it — kappi records what you commit, and if you never commit a trade in advance, it has nothing to show.

Pick it also if your trading is high-frequency enough that committing each trade by hand is unrealistic. Import scales to a thousand fills; a deliberate commit does not, by design.

When should you pick kappi?

For a sense of what a complete presentation is supposed to look like: the CFA Institute's GIPS standards require fair representation and full disclosure, with performance shown across every portfolio in a composite rather than the accounts that worked.^[1] An import journal scoped to a connected account is structurally the opposite of a composite, which is not a criticism of the software — it is a description of what it was built to do.

So: pick kappi when someone else has to believe the record. A prop firm or a partner cannot audit your journal, and they know it, which is why an exported spreadsheet persuades nobody. $15 a month, $12.75 through a referral link, and no free tier.