Group expense splitting · Native iOS + Androidlive

UPISplit

Split group expenses and settle up instantly over UPI — who owes whom in the fewest transfers, receipts and spending insights. Built natively in Swift and Kotlin.

role: CTO, brandMongo
period: 2026 – present

webupisplit.com ↗androidGoogle Play ↗

2
native apps: UPI
instant settle-up

# the idea

Splitwise-style apps stop at 'you owe ₹340'. In India the natural next step is paying it — so settle-up goes straight into UPI.

# what I built

Native iOS (Swift) and Android (Kotlin) apps sharing one backend.
Debt simplification to settle a group in the fewest transfers; UPI deep-link payments.
Groups, members, receipts and spending insights; group invites via AppsFlyer OneLink deep links.
Subscriptions and install attribution wired from day one.

# key decisions

Native over cross-platform here — payments and deep links behave best with first-party platform APIs.

# stack

Swift
SwiftUI
Kotlin
Jetpack Compose
StoreKit
AppsFlyer
Cloudflare Workers

next projectResume Pilot→