Black White Accounting — Track the spending you never notice. Frictionless logging. Take back control.
The coffee grabbed on the way to work, the $4 delivery fee at lunch, the missed-train ticket upgrade, and that $2.99 iCloud charge quietly renewing for three years — these invisible money leaks, not big purchases, are why your balance keeps shrinking.
See every bit of
invisible spending.
Track invisible spending
Coffee runs, deliveries, small subscriptions — ghost spending adds up to more than you think. Log each one and the statistics page shows this month's total invisible leak at a glance.
Frictionless logging
Amount, description — done in three seconds. No complicated categories, no nagging reminders, no cluttered screen you want to close on sight. Log it and move on with your day.
Expose subscription fatigue
Record recurring subscriptions as expenses, and the monthly summary reveals how many apps you're quietly feeding. Build a spending firewall and cut the parasite subscriptions.
Privacy-first, stored on device
Works offline, and your data stays on your device. Dark mode and a fully multilingual interface included.
Three steps to
take back control.
Local-first · Start without signing in
Your data stays
in your hands.
Black White Accounting stores everything on your device. Start logging without an account, and export a spreadsheet backup whenever you like.
A focused tool,
zero noise.
Designed for users
everywhere.
Detects your device language, with full localization.
More features on the way.
Your finances,
your device.
Black White Accounting is designed local-first. Log expenses without an account — your data stays on your phone.
Local-first
Transactions are stored on your device. No registration — open the app and start logging.
You control your data
Export a spreadsheet backup anytime, edit or delete single entries, or clear all records in Settings.
A minimal interface,
clear at a glance.
Two main tabs: ledger and statistics. Settings one tap away — frictionless logging, close it when you're done.
“No big purchases this month, so why was my balance down? Two weeks of logging showed me — coffee and delivery were the culprits.”
Sarah
Freelancer，London
Caught the invisible leaks
Expense tracking should be frictionless
FAQ
About Black White Accounting
Quick answers about what Flash Accounting is, its privacy model, and supported platforms.
- What is Black White Accounting (Flash Accounting)?
- Black White Accounting (Flash Accounting) is a personal expense-tracking app for iOS focused on catching invisible spending with frictionless logging. Enter an amount and a description and you're done in about three seconds — enough to reveal the coffees, deliveries, and small subscriptions quietly draining your balance.
- How is it different from other expense apps?
- It drops complicated categories and nagging reminders in favor of minimal amount-plus-description logging. The interface is stark black and white, local-first, and usable without signing in, with a statistics page that shows this month's invisible leaks and subscription fatigue at a glance.
- Where is my data stored? Is it safe?
- Every transaction is stored only on your device and works offline — no registration needed. You can export a spreadsheet backup, edit, or delete records at any time; your data stays under your control.
- Do I need an account to use it?
- No. There's no sign-up and no login — open the app and start logging. Everything stays on your device.
- Which languages are supported?
- 16 languages: 繁體中文, English, 日本語, Español, Français, Deutsch, हिन्दी, Português, Русский, Bahasa Indonesia, 한국어, Italiano, Türkçe, Tiếng Việt, ไทย, and Polski — plus dark mode and automatic device-language detection.
- When is the Android version coming?
- An Android version is planned but not yet on Google Play. Watch the official site or the App Store page for launch news.
- Who is Black White Accounting for?
- People who want fast logging without complicated categories; freelancers, office workers, and small business owners hunting down invisible spending and subscription fatigue; and privacy-minded users who want their data kept on their own device.
Flash Accounting · Track the spending you never notice. Frictionless logging. Take back control.
Ready to take back
control of your money?
It starts with seeing every expense you'd normally miss. Download Black White Accounting, log one in three seconds, and catch the ghost spending.
Free download · No sign-up