Doppio
Now available for sideloading

The Cozy Coffee Party In Your Pocket

Log your cups in under 10 seconds, calculate precise crema scores, and share your daily coffee journey in a private feed with close friends. No public clutter, just cozy coffee rituals.

Android

Download APK

Direct download for Android sideloading (~96 MB)

iOS AltStore

AltStore Source

Open or subscribe to the source URL on your iOS device

source.json•Doppio.ipa
DDoppio
Staging
Friend Feed☕ 5 active
N
Niklas
10m ago • Café Crema
9.2 ★
Drinking a Flat White. Perfect microfoam, silky milk texture and sweet espresso base. Vibe was immaculate. ☕
🔥 12-day streak
❤️ 4 likes
J
Julia
2h ago • Home Office
8.5 ★
Brewed a fresh V60 Filter with Ethiopian light roast. Peach notes and bright floral acidity.
🔥 3-day streak
❤️ 2 likes
Level Up! 🎉
Level 4 Barista (840 XP)
4

Designed for Coffee Connoisseurs

Everything you need to capture and share your daily cup, built with a warm, Crema-inspired aesthetics.

Log in under 10s

Log your coffee in seconds. Advanced tasting details (Aroma, Balance, Milk Texture) are tucked under an elegant collapsible panel for when you want to dive deep.

Always Shared With Friends

Your coffee logs are instantly visible to your friends. A simple, cozy social experience without the friction of toggling privacy options on every brew.

Tasteful Gamification

Earn XP, unlock level milestones, and celebrate unique coffee varieties and café exploration. Friendly streaks motivate without stress.

Advanced Crema Score

A scientific scoring algorithm based on Taste (35%), Balance (20%), Aroma (15%), Temperature (5%), Value (10%), Vibe (5%), and optional Milk Texture (10%).

Smart Café Lookup

Look up nearby cafés using OpenStreetMap Overpass API server-side, no tracking keys or device profiles leaked. Search cafés based on your GPS coordinates securely.

Fully Offline Ready

Log your coffee offline in the middle of a remote plantation. The app dehydrates React Query caches to secure device storage and syncs when online.

Installation & Sideloading Guide

Android Setup

Install via APK

  1. Download the Doppio-release.apk directly onto your device.
  2. Once downloaded, click on the file. Your browser or file manager may ask you to enable **"Install unknown apps"** permission.
  3. Grant the permission, go back to the installer, and click **Install**.
  4. Open the **Doppio** app, log in or sign up, and start logging!
iOS Setup

Install via AltStore

  1. Make sure you have **AltStore** or **SideStore** installed on your iPhone.
  2. Copy our AltStore source URL: https://doppio.arnitz.org/altstore/source.json
  3. Open AltStore, go to **Settings** → **Sources** → **Add Source**, and paste the URL.
  4. Find **Doppio** under My Apps and install it. Alternatively, download the unsigned IPA and sideload it directly.
Why sideloading? Doppio is currently a private project built for close friends and coffee enthusiasts to share coffee experiences. Sideloading allows us to test, refine, and deploy native app builds instantly without App Store review times or registration overhead.