Splitting expenses with friends, flatmates and trips in India is messy, and most apps make it worse — they hold balances, route money through their own rails, or leave the "who owes whom" maths opaque. People want to settle in seconds, over UPI, without trusting an app with their money.
- A React Native app for iOS and Android — groups, shared expenses, and a clear running balance.
- On-device debt simplification that collapses a tangle of IOUs into the fewest possible transfers.
- Settlement over UPI through the user's own UPI app — SplitB never holds or moves funds.
- A consent-first onboarding flow, on a Bun + Hono + Drizzle + Postgres backend with realtime sync.
₹0
funds SplitB ever holds
Settlements are peer-to-peer via your own UPI app — money never touches a SplitB server.
<0.01ms
on-device settle math
Debt minimization at 100 group members, benchmarked on a Motorola moto g35 5G — no server round-trip.
iOS & Android
from one codebase
React Native + Expo. In build, pre-launch.
React NativeExpoTypeScriptZustandTanStack QueryNativeWindFirebase AuthBunHonoDrizzle ORMPostgreSQLGlitchTip
An Atlee Labs product — funded and built in-house to the same bar as our client work.
A note on the numbers SplitB is pre-launch — not yet on the App Store or Play Store. There are no usage numbers to show, and a "₹ processed" figure will always be n/a by design, because SplitB never holds money. The one real, measured number is the on-device settlement benchmark above.