iPhone app
Know what’s safe to spend, every day
Gravity is a private expense tracker for iPhone. It does the arithmetic you never do — income, minus what you have spent, minus the bills still to come — and gives you one number for what today can take. Nothing ever leaves your phone.
Left to spend today
₹3,571
₹250 spent today · bills still due this month already set aside
What it does
Safe-to-Spend
Income, minus what you have already spent, minus the bills still due this month, divided by the days left. One number, every morning — and a bar showing how much of today is gone.
Ask Siri, hands-free
“Hey Siri, log an expense in Gravity” files it without you touching the phone. “What’s safe to spend in Gravity” answers without even opening the app.
Accounts that match the bank
Banks, cards with limit meters, cash and wallets, with net worth across all of them. Drifted after a few unlogged days? Type what the bank says and your history stays exactly as it was.
People and trips
Split a bill and your reports count only your share — the rest waits in the people ledger until it is settled. Tag a spend “goa” and the whole trip totals itself, however long it runs.
Bills before they land
Recurring charges are spotted from your own history, reminded before they hit, and flagged when a subscription quietly raises its price.
Widgets and a two-tap add
Today’s number on the home and lock screen. The + on the widget goes straight to the keypad — amount first, details after.
Your money stays yours
Gravity is built on the view that your financial life is nobody’s business but yours. Everything you record lives in your phone’s own encrypted storage. Delete the app and it is gone — including from us, who never had it.
No account
No sign-up, no password, no email. Open the app and start.
No server
There is no database of yours to breach, sell, or subpoena — we never receive it.
No tracking
No analytics, no crash reporting, no ads. One network call, for currency rates.
Because nothing is on a server, backups are yours to keep — export everything to a single file whenever you like.
Coming to the App Store
Gravity is in testing on iPhone. It is free to use — unlimited expenses, your full history, Safe-to-Spend, insights and widgets — with a paid tier planned for the deeper tools. Nothing you already rely on will move behind it.