Mineko is a German digital service platform that specializes in checking residential and commercial utility and operating cost statements (Nebenkosten- und Betriebskostenabrechnungen). Tenants upload their statements and rental contracts via the web, and Mineko's legal experts, supported by a proprietary rule-based system based on current German case law, analyze the documents. Within a few days, users receive a detailed 20–30 page audit report that transparently explains all positions, highlights errors, quantifies potential savings, and includes ready-to-use objection and dunning letters for landlords. For customers with housing-related legal expense insurance, the service is typically free; others can order checks for a fixed fee starting at €49. Mineko has processed over 130,000 statements since 2014 and cooperates with numerous major legal expense insurers in Germany.