Comparison

Gecko vs Chartlog (2026): Which Trading Journal Fits You?

By the Gecko team · Updated June 2026

Yes, this comparison lives on Gecko’s site, so read it knowing that. We have tried to keep it honest anyway, because the truth is simple: these are different tools built for different traders, and Chartlog is genuinely better for some of you. Here is the real breakdown so you can pick in five minutes.

The short version

Chartlog is a modern trade journal built around capturing setups from the chart side: a browser extension grabs your screenshots, broker imports pull the trades, and you review through a clean, visual interface. Pricing runs roughly $15 to $30 per month across tiers per their site as of June 2026.

Gecko works on the other side of the same trade. It reads your uploaded statements and tells you, in dollars, which behavioral habits are costing you money across twelve significance-tested axes. Pro is $12 per month with a fully featured free tier, and Gecko never asks for broker credentials.

Side by side

Category	Gecko	Chartlog
Price	Free tier (every feature, last 100 trades), Pro $12/month, cancel any time.	Roughly $15 to $30 per month across tiers per their site as of June 2026.
Setup	Upload a statement, no broker login, first diagnosis in about two minutes.	Install the browser extension, connect a broker, capture setups as you trade.
Broker support	Native parsers for Kraken, Robinhood, Interactive Brokers, plus an AI extractor that reads statements from any other broker — no broker is unsupported.	Broker auto-sync across a meaningful list, plus CSV import.
Security posture	Never asks for broker credentials. Reads only the statement you upload.	Auto-sync requires storing your broker API keys on their servers.
Primary lens	Behavior, priced in dollars. 12 axes, each significance-tested, ranked by realized cost.	Chart-side review. Screenshots, annotations, setup tagging on each trade.
Significance testing	Every flagged leak has to clear a bootstrap significance test before it surfaces.	Not the focus. Patterns surface visually through tagged setups.
Journaling	30-second weekly entry, auto-graded 0 to 100 from your real trades.	Full per-trade journaling with screenshots and notes.
Customizable dashboard	Drag-to-reorder widgets and eye-toggle their visibility from an in-page drawer.	Customization scope per their site as of June 2026.
Journal screenshots	Attach up to four chart or recap images to each weekly entry; click any thumbnail to expand.	Per-trade screenshots are a TradesViz strength by design.
Money-back guarantee	7-day money-back guarantee on your first paid period.	Refund policy per their site as of June 2026.
Gecko AI · personal coach	Gecko AI: your personal trading performance coach. Reads your trades, weekly journal, notes, and the goals you set for yourself — then suggests one concrete action for the week and checks in to see if it worked. Catches subtle drifts across months (slipping hit rate, growing after-loss tilt) before they compound. ~25 messages/month free, ~500 on Pro. Powered by Anthropic Claude Sonnet 4.6.	No conversational AI coach as of June 2026; review is screenshot- and tag-driven.
Light + dark theme	Light and dark themes with a one-click toggle in the sidebar and on every public page.	Light theme primary as of June 2026.
Best for	Traders who want behavior named and priced, without per-trade work.	Visual reviewers who want chart screenshots and setup tags at the center of their workflow.
Daily Coach loop	AI pre-market briefing keyed off your actual data, end-of-day check-in (mood + rule + journal) joined with daily P&L, weekly plan-adherence score, mood × performance correlation, AI-written Monday recap email. All in the dashboard, free tier included.	Not offered. A trade-journal log plus reports; no daily AI coaching surface, no EOD check-in, no plan-adherence score, no AI recap email.
Broker auto-sync	Read-only OAuth via SnapTrade on Pro and Unlimited. 20+ brokers supported today — Fidelity, Vanguard, Charles Schwab, E*TRADE, Robinhood, Interactive Brokers, tastytrade, TradeStation, Webull, Public, Alpaca, Tradier, Chase, Moomoo, eToro; plus Kraken and Coinbase for crypto; plus Questrade, Wealthsimple, and Trading 212 for CA/EU. Free tier keeps the always-available statement upload path. Password never crosses Gecko; tokens can be revoked from Settings.	Varies. Some competitors offer broker integrations on paid tiers; others require manual CSV uploads or a TradingView hand-off. See their own table rows for specifics.
Trade Replay + coach commentary	Play any trading day back as an interactive minute-bar chart with entry / exit markers, a 30-minute tilt window shaded on the chart, and a chronological tape weaving your trades with the behavioral alerts that fired. Zoom out to a multi-day chart on any swing position held across sessions — daily bars with entry / exit anchors, continuous across futures contract rolls. Sonnet writes a coach recap plus counterfactual on demand. Covers equities, crypto, and CME futures. Free tier.	Varies. A few competitors ship chart playback of trades on price bars; almost none pair it with a behavioral-alert overlay, a tilt-window band, a swing view for multi-day holds, and an AI-written recap in the same view.

Price

Gecko: Free tier (every feature, last 100 trades), Pro $12/month, cancel any time.

Chartlog: Roughly $15 to $30 per month across tiers per their site as of June 2026.

Setup

Gecko: Upload a statement, no broker login, first diagnosis in about two minutes.

Chartlog: Install the browser extension, connect a broker, capture setups as you trade.

Broker support

Gecko: Native parsers for Kraken, Robinhood, Interactive Brokers, plus an AI extractor that reads statements from any other broker — no broker is unsupported.

Chartlog: Broker auto-sync across a meaningful list, plus CSV import.

Security posture

Gecko: Never asks for broker credentials. Reads only the statement you upload.

Chartlog: Auto-sync requires storing your broker API keys on their servers.

Primary lens

Gecko: Behavior, priced in dollars. 12 axes, each significance-tested, ranked by realized cost.

Chartlog: Chart-side review. Screenshots, annotations, setup tagging on each trade.

Significance testing

Gecko: Every flagged leak has to clear a bootstrap significance test before it surfaces.

Chartlog: Not the focus. Patterns surface visually through tagged setups.

Journaling

Gecko: 30-second weekly entry, auto-graded 0 to 100 from your real trades.

Chartlog: Full per-trade journaling with screenshots and notes.

Customizable dashboard

Gecko: Drag-to-reorder widgets and eye-toggle their visibility from an in-page drawer.

Chartlog: Customization scope per their site as of June 2026.

Journal screenshots

Gecko: Attach up to four chart or recap images to each weekly entry; click any thumbnail to expand.

Chartlog: Per-trade screenshots are a TradesViz strength by design.

Money-back guarantee

Gecko: 7-day money-back guarantee on your first paid period.

Chartlog: Refund policy per their site as of June 2026.

Gecko AI · personal coach

Gecko: Gecko AI: your personal trading performance coach. Reads your trades, weekly journal, notes, and the goals you set for yourself — then suggests one concrete action for the week and checks in to see if it worked. Catches subtle drifts across months (slipping hit rate, growing after-loss tilt) before they compound. ~25 messages/month free, ~500 on Pro. Powered by Anthropic Claude Sonnet 4.6.

Chartlog: No conversational AI coach as of June 2026; review is screenshot- and tag-driven.

Light + dark theme

Gecko: Light and dark themes with a one-click toggle in the sidebar and on every public page.

Chartlog: Light theme primary as of June 2026.

Best for

Gecko: Traders who want behavior named and priced, without per-trade work.

Chartlog: Visual reviewers who want chart screenshots and setup tags at the center of their workflow.

Daily Coach loop

Gecko: AI pre-market briefing keyed off your actual data, end-of-day check-in (mood + rule + journal) joined with daily P&L, weekly plan-adherence score, mood × performance correlation, AI-written Monday recap email. All in the dashboard, free tier included.

Chartlog: Not offered. A trade-journal log plus reports; no daily AI coaching surface, no EOD check-in, no plan-adherence score, no AI recap email.

Broker auto-sync

Gecko: Read-only OAuth via SnapTrade on Pro and Unlimited. 20+ brokers supported today — Fidelity, Vanguard, Charles Schwab, E*TRADE, Robinhood, Interactive Brokers, tastytrade, TradeStation, Webull, Public, Alpaca, Tradier, Chase, Moomoo, eToro; plus Kraken and Coinbase for crypto; plus Questrade, Wealthsimple, and Trading 212 for CA/EU. Free tier keeps the always-available statement upload path. Password never crosses Gecko; tokens can be revoked from Settings.

Chartlog: Varies. Some competitors offer broker integrations on paid tiers; others require manual CSV uploads or a TradingView hand-off. See their own table rows for specifics.

Trade Replay + coach commentary

Gecko: Play any trading day back as an interactive minute-bar chart with entry / exit markers, a 30-minute tilt window shaded on the chart, and a chronological tape weaving your trades with the behavioral alerts that fired. Zoom out to a multi-day chart on any swing position held across sessions — daily bars with entry / exit anchors, continuous across futures contract rolls. Sonnet writes a coach recap plus counterfactual on demand. Covers equities, crypto, and CME futures. Free tier.

Chartlog: Varies. A few competitors ship chart playback of trades on price bars; almost none pair it with a behavioral-alert overlay, a tilt-window band, a swing view for multi-day holds, and an AI-written recap in the same view.

The honest verdict

Choose Chartlog if...

•Your review process lives in the charts. Screenshots and setup tags matter to you.
•You want a clean, modern visual journal with broker auto-sync.
•You are willing to maintain per-trade discipline to get the most out of the workflow.

Choose Gecko if...

•Your real problem is behavior across many trades, not picking the right chart.
•You want each flagged pattern significance-tested before you act on it.
•You would rather not hand a third party your broker API keys.
•You want the read on autopilot, not another per-trade tagging chore.

One honest note: Chartlog and Gecko look at the same trade from two different sides. Chartlog is genuinely strong if your weakness is remembering what the setup looked like in the moment. Gecko is stronger if your weakness is the patterns that show up across many trades, the ones you only see when someone computes them for you and prices them in dollars.

The cheapest way to decide

Gecko’s free tier analyzes your last 100 trades with every feature unlocked, no card and no broker connection. If the diagnosis does not show you something worth fixing, you have lost two minutes.

Get your free diagnosisAn educational tool, not financial advice.

Frequently asked questions

Is Gecko cheaper than Chartlog?

Yes. Gecko Pro is $12 per month. Chartlog runs roughly $15 to $30 per month per their site as of June 2026, with paid tiers starting near Gecko's effective monthly price.

What does Chartlog have that Gecko does not?

A chart-capture browser extension, per-trade screenshots and annotations, and a visual setup-tagging workflow.

What does Gecko have that Chartlog does not?

A behavioral diagnosis priced in dollars across twelve significance-tested axes, a self-grading weekly journal, and a no-credentials setup that reads only the statement you upload.

Can I use both?

Yes, and some traders do. Chartlog for the chart-side review of a specific trade, Gecko for the behavioral read across all of them. Gecko's $12/month stacks cheaply on top.