A tidier PC, tab by tab.
Each tab opens on its answer: more transactions on the first screen, a read-only budget with an Edit plan button, and fewer sentences that explain the screen.
Downloads
Download Lightning. Free.
Lightning 1.5.4 for Windows and Android. Install both, and your phone and PC share one ledger.
Ready for your real numbers. We improve Lightning with every release; the release log shows what changed.
What’s new
Notes for Lightning 1.5.4
Plain words, from the release notes. The full list is in the release log.
Safety agrees with itself.
Reserves and Limits show the same emergency fund, and Loans, Planner and Zakat lead with their figure.
A calmer phone.
One Needs you strip, Budget shown once, Transactions on this month, and the next payment after payday.
Fewer surprises.
A conversion far from the market rate asks once before saving; a form sent twice unlocks or saves once; nearby pairing comes first when you connect a device.
Loan payments stay put.
Skipping a loan payment no longer drops a part payment.
Unlocking behaves.
Pressing Enter and then clicking no longer shows “This form expired”.
Install
Three Steps, and You’re In.
No account, and no bank password.
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.
On your phone
Open the downloaded file. Android asks once to let your browser install apps: allow it, then tap Install. 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 1.5.4 is the current Windows and Android release. Windows needs Microsoft Edge WebView2; Android downloads directly as an APK with no ZIP to extract. Older builds are in the version archive.
| Release | Platform | Status | Download | Release log |
|---|---|---|---|---|
| Lightning 1.5.4Current public release | Windows x64 · ZIP archive SHA-256 checksums · Build record | Available now | Download for Windows | Read the log |
| Lightning 1.5.4Paired build | Android arm64 · APK Lightning · 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.
Feedback
Tell Us What Happened.
Something off, or an idea? Tell us one issue or idea at a time; the form lets you add several tickets and name the build. Every release starts from what you send.
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. The store must enable the app release before it can issue a code.
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 gets better with every release.
Shape what comes next
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.