/en/projects/dengoComing soon
Dengo app icon

Dengo.

Daily connection for couples.

A native iOS app that brings couples closer through swipe-card questions, themed streams and a daily streak. No login, no analytics, no subscription — only what matters.

  • SwiftUI
  • SwiftData
  • StoreKit 2
  • UserNotifications
  • Claude Code
  • Codex
Coming soon · Apple App Store

Dengo arriving.

Category
Lifestyle
Platform
iOS
Release
2026
Developer
Gabriel Vaz
— Screens

Inside the app

04 / iPhone

  • Dengo — Onboarding · choose your rhythm
    01Onboarding · choose your rhythm
  • Dengo — Card of the day
    02Card of the day
  • Dengo — Revealed card
    03Revealed card
  • Dengo — Themed streams
    04Themed streams
— Features

Everything that matters. Nothing that doesn't.

Case study · from problem to launch

An app built for one person: the couple tired of talking about household logistics.

  1. — 01 / The spark

    Couples lose depth on autopilot.

    I noticed something both banal and painful around me: most couples I admire — close friends, my parents, myself — describe their time together as `quiet`, `normal`, `ok`. Empty words.

    Routine eats depth. You sit at the table with the person you love most and talk about the electricity bill, what's in the fridge, the weekend ahead. Rarely about what actually matters.

  2. — 02 / The user problem

    It's not love that's missing. It's the prompt.

    Couples don't need another app to `save the relationship`. They need a simple excuse to ask the question they wouldn't ask on their own.

    Not therapy. Not a 30-day journey. Not aggressive gamification. Not algorithmic recommendations. Just a question. Tonight.

  3. — 03 / The concept

    One card a day. Nothing else.

    A single card per day. Swipe to reveal. Optional answer, stored locally on device. A daily streak to build the bedtime ritual.

    Six themed streams — Intimacy, Memories, Dreams, Routine, Values, Vulnerability — so the couple chooses the tone of the night.

    Offline-first. Zero data collection. No login. A couple's content belongs to the couple.

  4. — 04 / Validation

    Eight couples. Fourteen nights.

    I tested with 8 close couples for 14 days. Six reported conversations that `wouldn't have happened on their own`. Two didn't engage — without a fixed trigger, the app vanishes.

    I learned what mattered: optional notification + fixed time is the ritual. The catalog is only the pretext. No time slot, no habit. With a slot, a conversation.

  5. — 05 / Built with AI

    I designed it. AI wrote the code.

    Native iOS in SwiftUI and SwiftData, written in pair-programming with Claude Code and Codex. I defined architecture, copy and flow. AI generated roughly 70% of the views, the unit tests, and the seed pipeline for the catalog — 1,006 Portuguese questions across 15 categories.

    No third-party analytics, no proprietary backend. StoreKit 2 for optional Premium (monthly R$ 9.90 or lifetime R$ 49.90), 100% processed by Apple — we never receive card data.

    • SwiftUI
    • SwiftData
    • StoreKit 2
    • Claude Code
    • Codex
  6. — 06 / Launch

    Coming soon. No recurring cost.

    Submission prepared with an app-store-review-agent audit. PrivacyInfo.xcprivacy declares zero collection. Screenshots generated programmatically.

    No server, no backend, no recurring cost to keep the app alive. If I disappear tomorrow, Dengo keeps working on your iPhone until iOS breaks the API.

— Privacy first

Built with respect for you.

  • 01No signup, no login, no profile
  • 02No third-party analytics and no cross-app tracking
  • 03Data stays on-device via SwiftData
  • 04Purchases processed by Apple via StoreKit
— Documents
Privacy PolicyEnglishTerms of UseEnglish