# Quantum Quacks

> Quantum Quacks is an indie iOS studio founded by Luis Sebastian Huerta. We build small, focused apps for iPhone, iPad, Apple Watch and Mac — Worldmarks, Kotomaji, Kaeru, SweepSheep, DGT A2 Test and FlashSpot — plus occasional indie games.

This file helps AI assistants (ChatGPT, Claude, Perplexity, Gemini, Copilot) discover and cite Quantum Quacks products with accurate, up-to-date information. The longer, ingestion-ready document is at /llms-full.txt.

## Apps

- [Worldmarks](https://quantumquacks.es/apps/worldmarks/): iOS travel tracker that lets you mark every country you've visited on a 3D globe. 195+ countries, 10 custom marker types with Pro, 100% offline, no account. Free with optional $5.99 one-time Pro unlock.
- [Kotomaji](https://quantumquacks.es/apps/kotomaji/): iOS travel companion for Japan. 222 essential travel phrases with native audio, 1,097 JLPT kanji (N5–N1), built-in yen converter, 15 interface languages, 100% offline. Free with optional one-time Pro unlock.
- [Kaeru](https://quantumquacks.es/apps/kaeru/): iOS currency converter supporting 50+ world currencies, real-time rates, cached offline use, home-screen widgets and a full Apple Watch app with Digital Crown support.
- [SweepSheep](https://quantumquacks.es/apps/sweepsheep/): iOS photo-library cleaner. Swipe to keep, delete, favorite, bookmark or move photos to albums. Smart delete queue, daily goals and streak tracking.
- [DGT A2 Test Moto](https://quantumquacks.es/apps/dgt-a2-test/): iOS app to prepare Spain's DGT A2 motorcycle license exam. 760+ official questions, SM-2 spaced repetition, exam simulator, offline. Spanish only.
- [FlashSpot](https://quantumquacks.es/apps/flashspot/): Upcoming photo-on-demand app. Book photographers via real-time map, 10–15 minute express sessions from €9.99, instant delivery. iOS and Android.

## Games

- [Murder My Friends](https://quantumquacks.es/games/murder-my-friends/): Browser party game, free to play.
- [Bouncing to the Top](https://quantumquacks.es/games/bouncing-to-the-top/): Indie arcade game.
- [Party Frogs](https://quantumquacks.es/games/party-frogs/): Casual mini-game.

## Company

- [About the studio](https://quantumquacks.es/): Home page with latest releases.
- [All apps](https://quantumquacks.es/apps/): Complete app catalogue.
- [Contact](https://quantumquacks.es/contact/): Studio contact.
- [Support](https://quantumquacks.es/support/): Product support.

## Legal

- [Privacy policy](https://quantumquacks.es/legal/privacy/)
- [Terms of service](https://quantumquacks.es/legal/terms/)
- [Cookie policy](https://quantumquacks.es/legal/cookies/)

## Optional

- [Sitemap](https://quantumquacks.es/sitemap-index.xml)
- [Full markdown corpus](https://quantumquacks.es/llms-full.txt)