Consumer fintech

Tideline

A personal-finance app that turns messy bank data into a calm, daily picture of your money — designed and built from zero to the App Store in nine weeks.

Sector
Consumer fintech
Platforms
iOS
Engagement
Product design · Native iOS · Backend
Year
2025
4.9★ App Store rating
+32% 30-day retention
9 wks Idea to launch
01

The challenge

Two founders had validated the idea with a clickable prototype, but had no app, no backend, and a hard investor demo just ten weeks out. They needed a credible v1 in the App Store — not a slide deck.

02

What we built

A one-week discovery locked a ruthless v1 scope. We designed a focused onboarding and a single calm dashboard, then built a native SwiftUI app on a serverless backend with secure bank aggregation, automated TestFlight delivery, and crash and analytics monitoring from day one.

03

The outcome

Tideline shipped to the App Store in nine weeks, landed a 4.9-star average rating, and lifted 30-day retention 32% over the prototype's benchmark — and closed the round.

04

What we used

  • Swift
  • SwiftUI
  • Node.js
  • PostgreSQL
  • AWS
  • Fastlane

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