Darfou - DARF e IR Day Trade

A simple reminder app with support for recurring tasks, birthdays, and synchronization, but with frequent notification and sync issues.

Web application for creating and managing invoices, estimates, and receipts with cloud storage, design templates, and collaboration features.

Aegis Authenticator is a free open-source app for generating and storing 2FA tokens (HOTP/TOTP) with encryption, biometric unlock, group organization, and automatic backups.

An inventory app for collections (movies, books, games, etc.) with barcode scanning, cloud synchronization across devices, and a database of millions of items, but with limitations on free items and basic database functionality.

Readest is an ebook reader with advanced features for analytical reading: semantic search, advanced notes, bookmarks, and dual-language mode, but with issues in book import and cloud synchronization.

Mobile application for small businesses (sole proprietorships and LLCs) enabling creation of primary documents, payment tracking through bank integration, tax obligation management, and counterparty management. Core functionality operates with reduced convenience compared to the web version.

A mobile application for automating cashier and courier operations with support for receipt printing, 1C integration, and NFC payments, but affected by critical bugs in tax calculations, shift management, and weighted goods processing.

InVintory is an app for tracking and managing a wine collection with 3D cellar visualization, AI sommelier recommendations, and value analysis, but without user reviews to verify the claimed functionality.