Mr. Latte


ToonBooth

Archive Mediahttps://www.mrlatte.net/services/toonbooth

A mobile app that turns 1-4 uploaded photos into a black-and-white webtoon caricature strip. Modes range from classic photo-booth strips to story-driven four-panel comics, and finished strips spread through a shareable landing link.

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Definition

ToonBooth turns your photos into a black-and-white webtoon caricature strip that looks just like you, your family, or your friends. Modes range from classic photo-booth-style strips to story-driven four-panel comics, and each produces a completely different result. Upload photos of multiple people and they’re automatically composed into one group strip.

Problem Statement

Photo-booth strips only exist offline and stay close to a lightly retouched photo. There’s no easy way to get a caricatured, comic-style strip of yourself. ToonBooth sits between the two, available anywhere, but fully reimagined in a webtoon style.

Core Audience

  • Couples, families, and friend groups: Users who want to turn a photo together into something more special
  • Photo-booth fans in their teens through 30s: Users looking for a shareable result for social media
  • Fans of caricature and webtoon-style content: Users who want a comic reinterpretation of themselves rather than a realistic photo

Core User Flow

  • Sign in: Google sign-in only (no anonymous use)
  • Upload and pick a mode: Upload 1-4 photos and choose Classic, Story Comic, Magic Pen, or Shoujo Manga
  • Generate: The server shows real-time progress while composing the black-and-white webtoon strip
  • Save and share: Save the finished strip or spread it through a share landing link (recipients see the image and are invited to install the app)

Key Features

  • Mode-based caricature generation: Classic photo-booth, story-driven comic, magic-pen doodle, and shoujo-manga modes, managed server-side and adjustable without an app release
  • Automatic group strips: Photos of multiple people are automatically composed into one strip together
  • Public gallery: Free generations are published to the gallery automatically; paid generations can be kept private
  • Share landing pages: Every finished strip gets a short share link, visible to people who haven’t installed the app
  • Multi-language support: Korean, English, and Japanese, including UI, speech bubbles, and sound-effect text

Product Design Principles

  • Server-managed generation modes: Modes are defined as Firestore documents, so the lineup can change without an app update
  • First cut free, credit-based purchases after: One free generation per account for life, then consumable credit purchases per cut, enforced server-side
  • Free generations are always public: Grows the gallery organically, with privacy as an option only for paid generations

Technology Stack

  • App: React Native (bare CLI)
  • Backend: Firebase Auth (Google sign-in only) + Firestore + Cloud Functions
  • Hosting: Firebase Hosting (share landing page at /c/{jobId})
  • Distribution: Android (Play Console, store listing in progress), iOS in progress
  • Features: Multi-language (ko/en/ja), deep links (toonbooth://), real-time generation progress

Contact and Account Deletion

  • Contact: Reach us via Channel Talk on the contact page.
  • Account deletion request: You can request deletion of your Google sign-in link along with uploaded photos, generated strips, gallery posts, and remaining credits. Open a deletion request email (handled within 30 days of receipt, and cannot be undone once processed). See the Privacy Policy for the full data policy.
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