On Your Computer
Lightning runs on your own Windows PC. Your accounts, statements and plans live in Documents, in one profile.
Private by design
Your Money. Your Data. Your Computer.
Lightning keeps everything in one encrypted profile, on your PC, opened with your password.
Free to use. Windows. No bank login.
What stays with you
Nothing About Your Money Leaves Your PC.
Three promises, and how Lightning keeps them.
Encrypted, With Your Password
The profile is encrypted and opens only with your password. A backup is made every time it starts.
No Logins, No Account
No bank login, no broker login and no sign-up. You bring in statements yourself and review every row.
Good questions
Privacy, Answered
Where your data lives, and who can read it.
Does Lightning work without the internet?
Yes. The only thing it looks up online is the latest price of listed shares, by ticker symbol. Everything else works offline.
Where exactly is my data?
In your Documents folder, in a Lightning profile on your computer. It is never in our servers, because we don’t have any for your money data.
Do I need an account?
No. There is no sign-up, no card and no email needed to use the app.
Can someone else on my PC read it?
Not without your password. The profile is encrypted on disk, so copying the file doesn’t open it.
Is there a phone app?
Not yet. We’re building one that syncs straight to your computer, with no server in between.
Keep reading
More Money Questions
Each one answered with Mohab’s year, our sample household.
Can I Budget From My Bank Statement Without Sharing My Login?
Bring in a CSV, match its columns once and check every row.
How Do I Work Out My Net Worth?
Add up what you own in EGP, then take off what you owe and what isn’t yours.
How Do I Build a Monthly Budget in EGP?
A plan for each category that fits your salary, and what’s left every day.
Beta testers wanted
Help Us Shape the Future of Lightning.
Your opinion decides what we build next. Take the 3–5 minute survey and we’ll invite you to the beta, and to our testers’ community on WhatsApp.
Take the survey · 3–5 min
or get news of each build
Study Your Patterns. Control Your Future.