On your PC
Unzip the file into a new folder and open Lightning.exe inside it. Nothing to install, but Windows needs Microsoft Edge WebView2.
Downloads
Download Lightning. Free.
Lightning 1.5.0 for Windows and Android. Install both, and your phone and PC share one ledger. No iPhone version yet.
Version 1.5.0 is ready to use: your real statements are welcome. The release log lists what’s still open.
Install
Three Steps, and You’re In.
No account, and no bank password.
On your phone
A direct APK, no unzipping, from outside Google Play, so Android may warn you or ask to allow installs from your browser. Download it only from this page.
Pair the two
Open both apps on the same Wi-Fi. The phone keeps the ledger and the PC borrows it, encrypted and with no server.
Release downloads
Choose Your Lightning Version.
Lightning 1.5.0 is the current Windows and Android release. Windows needs Microsoft Edge WebView2; Android downloads directly as an APK with no ZIP to extract; it is called Lightning Test and is debuggable. Older builds are in the version archive.
| Release | Platform | Status | Download | Release log |
|---|---|---|---|---|
| Lightning 1.5.0Current public release | Windows x64 · ZIP archive SHA-256 checksums · Build record | Available now | Download for Windows | Read the log |
| Lightning 1.5.0Paired build | Android arm64 · APK Lightning Test · shared checksums and build record above | Available now | Download for Android | Read the log |
The Windows and Android files share one tested build record and source commit
Sample data
Want to Look Around First?
Start with Mohab’s downloadable CSV year, or load one of four ready-made profiles inside Lightning. Both use fictional data in an empty profile; your own statements work the same way.
- Mohab: download and unzip the sample pack.
- Create or open an empty profile in Lightning.
- For Mohab, create the accounts and import
cib-payroll.csvfirst, then the remaining files. - For Amr, Abdelrahman, Menna or Fatma, choose a profile on Lightning’s welcome screen and select Load sample.
Beta feedback
Tell Us What Happened.
You don’t need to test everything. Try one path: can you import, can you trust the numbers, can you act on them? Then tell us one issue or idea at a time; the form lets you add several tickets and name the build.
App appearance
Try Dendera.
Open Settings → Appearance and choose Dendera or Dendera, night. It applies immediately. Choose Lightning default to switch back.
Free and unlocked themes save with the profile. To keep a paid theme: buy it on the Marketplace, press Get app code on its card, then paste the code in Settings → Appearance → Unlock a theme you bought. Do this once per profile: the profile’s other devices unlock by themselves. Another profile needs its own unlock, at a quarter of the price. Unlocking needs the app release that adds Unlock a theme you bought; 1.5.0 has previews only.
One Dendera website purchase includes its day and night looks across this website and For Geeks. See the live price and the steps in Use it in the app.
Why Lightning exists
What My Own Numbers Taught Me
When I started investing, I chased percentages. The returns looked exciting, until I looked at the actual amounts, and at the worry and risk that came with them.
I had logged every pound since I graduated and reviewed it each week. That log showed me something quieter: fewer Uber rides and Talabat orders, and a little more care when shopping, kept almost as much each month as my investments made. And it kept doing it, month after month.
None of this is new. Most good money books land in the same place: you can’t control much around you, but you can control your own habits, and habits compound.
Keeping that log by hand took hours every month, and it still never showed everything in one place. Lightning is the tool I wanted then: everything I own and owe, counted properly, so the habits are easy to see. It’s still early, and it gets better with every tester.
Beta testers wanted
Your Answers Decide What We Build Next.
Take the 3–5 minute survey: what you track, what you skip and what you wish Lightning did.
Take the survey · 3–5 min
or get news of each build
Study Your Patterns. Control Your Future.