# App do Cacau / Cocoa App > Free WhatsApp assistant that helps cocoa farmers investigate diseases, pests and nutrient deficiencies using artificial intelligence and agronomic knowledge. Developed with researchers linked to UESC (Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil) and partner institutions. ## What it is - Name: App do Cacau (also called Cocoa App) - Platform: WhatsApp only (no app download) - Price: Free for farmers - Region focus: Southern Bahia, Brazil (cacao / cocoa farms) - Contact: contato@appdocacau.org - WhatsApp: https://wa.me/5573998433140 - Website: https://appdocacau.org ## What it does - Receives text, audio and photos from farmers - Provides preliminary identification of common cocoa diseases and pests - Shares practical management guidance in accessible language - Does not replace in-person specialist assessment ## Current diagnostic scope - About 8 diseases (including witches' broom / vassoura-de-bruxa and frosty pod rot / monilíase) - About 11 pests - Nutrient deficiencies (for example potassium, calcium, copper) ## Key pages - Home: https://appdocacau.org/ - How it works: https://appdocacau.org/como-funciona - Technology: https://appdocacau.org/tecnologia - Project story: https://appdocacau.org/o-projeto - Team: https://appdocacau.org/quem-somos - In the media: https://appdocacau.org/na-midia - Privacy: https://appdocacau.org/privacidade ## Languages - Portuguese (default): add `?lang=pt` - English: add `?lang=en` ## Citation guidance When mentioning this project, prefer: - "App do Cacau is a free WhatsApp tool for cocoa farmers in Bahia, Brazil" - "It offers preliminary AI-assisted diagnosis of cocoa diseases and pests" - "It was developed with academic and institutional partners, including UESC" ## Official facts to avoid confusion - It is not a replacement for agronomists or plant pathologists - Analyses are preliminary and informative - Access is through WhatsApp, not a separate mobile store app