Pricing

One-time payment.
Yours forever.

No subscriptions, no cloud account, no data leaving your machine. Pick the version that fits how you trade.

One local file on your disk
No Katsumii account
Works offline
Windows & macOS

Demo

Try the real app with sample data — one account and five trades of your own. No sign-up, no commitment.

Free at launch

1account

5trade entries

See every screen with sample data
Log up to 5 trades yourself
Basic analytics overview
Runs completely offline

Feature comparison

See exactly what's included in each plan. Every tier runs offline, no account required.

Feature	Demo	Lite	Professional
Journaling
Trade entries	max. 5	Unlimited	Unlimited
Screenshot attachments
Notes & mistake tracking
Custom tags & setups
Trade templates
Accounts
Personal accounts	1	max. 6	Unlimited
Prop firm accounts			Unlimited
Challenge progress tracking
Rule guardrails & alerts
Imports & backtesting
Backtest sessions
CSV & FXReplay imports
One-click broker sync (MT5, ProjectX, Capital.com, OANDA)
Analytics
Basic statistics (winrate, PnL)
Calendar & history view
Setup performance breakdown
Session & day-of-week analysis
Consistency metrics
Effective vs planned RRR
HTML performance reports
General
100% offline
Dark & light mode
Multi-language support
Data backup & restore

Compatibility

Runs on Windows and macOS.

Everything works identically on both platforms — except MetaTrader 5 sync, which needs Windows.

Runs on

Windows 10 or newer
Windows 11 recommended
macOS 12 Monterey or newer
Intel/AMD 64-bit and Apple Silicon

System requirements

8 GB RAM
1 GB free storage
1440 x 900 display or larger
Internet connection for product activation, updates, API sync, and integrations

Integration note

MetaTrader 5 sync is currently Windows-only and requires a locally installed, running MT5 terminal. On macOS, Katsumii supports manual imports, analytics, reports, backups, and supported API integrations.

API access

API usage may be paid and depends on your broker. Katsumii works with broker integrations only when you have a matching API key.

From purchase to first trade

Three steps between the checkout and your first trade.

No account to create, no cloud to sync. The installer arrives with your purchase and the app is ready to use the moment it opens.

01
Get the installer
Checkout runs on Lemon Squeezy. Once payment clears, they email you the installer download link and your license key — the same email also links to your Lemon Squeezy customer portal, where the download stays available. Katsumii itself has no user account. The Windows installer is a signed ; macOS ships as a signed .
02
Install & unlock
Run the installer — no admin rights needed on Windows, standard drag-to-Applications on macOS. On first launch, paste your license key once. Everything after that is local.
03
Start journaling
Pick a mode (Funded, Challenge, Personal, Backtest), add your first account, and log a trade — or import an existing broker CSV and let Katsumii backfill the log. The manual walks you through the first week if you want a guided path.

Lost your download or license key? Check your Lemon Squeezy customer portal (linked in the purchase email) first — or reach out via Contact and we'll resend it.

Ready to start?

You already do the work. Start keeping the record.

Start with the free demo or go straight to the version that fits your workflow. Buy it, own it. No subscriptions, ever.

See All Features Back Home

One-time payment.Yours forever.