All Build Guides
Build Guide·expense tracker· ~8 weeks

How to Build an Expense Tracker App Without Coding

How to ship a personal expense tracker — where Splitwise and Tricount won, and which niches still have room for solo builders.

Opportunity
MEDIUM
Market size
$250M+ expense tracking segment
Platform
Rork
Monetization
freemium + subscription

Expense tracking splits into two distinct markets. Personal expense tracking (budget apps, see budget-tracker-app guide) and group expense splitting (Splitwise, Tricount). Group splitting is surprisingly still open for niche apps — 'expenses for roommates', 'expenses for trips', 'expenses for small teams', all have $100K-$1M ARR indie apps. Splitwise is generic; vertical apps win on workflow.

Who Currently Wins in This Category

Splitwise
20M+
General group expense splitting
Tricount
15M+
Trip expense splitting, European origin
Expensify
5M+
Business expense reports

Recommended Stack

Platform
Rork
Receipt scanning (OCR) via Vision framework is native on iOS — critical feature. Multi-currency math needs attention but isn't hard.
Monetization
freemium + subscription
Free for basic splitting, premium $2.99/mo removes limits + adds multi-currency + OCR receipts. Business expenses (per-seat pricing $5-10/user/mo) monetizes better but is harder to sell.

MVP Features

  1. 1.Group creation with member invites (deep link)
  2. 2.Add expense with who-paid and who-owes split
  3. 3.Balance view (who owes whom)
  4. 4.Settle-up integration with Venmo / Revolut / Wise
  5. 5.Receipt photo attachment (OCR optional for v2)

Timeline estimate: ~8 weeks for a non-coder using Rork.

How to Stand Out

Splitwise is generic. Vertical wins: roommate-specific (recurring bills like rent + utilities auto-split), trip-specific (multi-currency, 'settle in person' UX), small-team-specific (pre-tax-deductible categorization for freelancers).

ASO Keywords to Target

expense trackersplit billssplitwisegroup expensesroommatetrip expensesshared expenses

Common Pitfalls

  • ·Trying to out-feature Splitwise — they've had 15 years
  • ·Skipping deep-link invites — if non-users can't join a group, the app is unusable for its primary use case
  • ·Ignoring currency handling for trip apps

Frequently Asked Questions

Why compete with Splitwise?
Splitwise is the default but deliberately generic. A roommate app with rent auto-splitting beats Splitwise for that audience. Trip-specific apps with strong multi-currency beat Splitwise for travelers.
Do I need a backend for this?
Yes — group expenses require shared state. Supabase's free tier handles 50K MAU. This is not a pure-local app.
How do users settle up?
Link out to Venmo, Revolut, Wise, or Paypal. Don't try to process payments yourself — PSP and AML compliance is out of scope for an indie.
Can I monetize via transaction fees?
Only if you're a licensed money transmitter — you're not. Settle-up is an affiliate play, not a fee play.
How do I handle group-chat abuse?
Report/block flows are required by Apple App Review for any app with user-to-user communication. Budget time for moderation UX.

Ready to ship your expense tracker app?

AppBuilder Academy walks you through every step — idea validation, design, monetization, launch, and growth.

Start AppBuilder Academy

Other Build Guides

How to Build a Meditation App Without Coding
meditation · ~8 weeks
How to Build a Habit Tracker App Without Coding
habit tracker · ~6 weeks
How to Build a Budget Tracker App Without Coding
budget tracker · ~12 weeks
How to Build a Workout Planner App Without Coding
workout planner · ~10 weeks