Chamjo

Chamjo is a specialized UI research library that collects and organizes mobile app screenshots from various global markets. It provides designers and product teams with access to over 8,000 real app screens, focusing particularly on regional apps from countries like Indonesia and the UAE. The platform helps users understand local design patterns, user behavior, and interface standards that are specific to different geographical markets.

The library stands out by offering hard-to-access user flows that typically require being an actual customer to view, such as payment processing, banking interfaces, and delivery service screens. Users can browse apps by region and request specific apps or markets they want to see added to the collection. The service operates on a freemium model where basic browsing is free, while full access to the complete catalog requires a paid subscription.

Chamjo is most valuable for UX designers working on international products, product managers researching competitive landscapes, and market analysts studying regional app trends. It helps teams make informed design decisions by providing concrete examples of what works in specific markets, ultimately saving research time and improving localization strategies for global app development.