InVintory: Wine Cellar Manager

Digital note-taking and PDF annotation application with an AI assistant, designed for students, professionals, and creative individuals. In practice, it is a working tool for handwritten notes and document annotation, but with stability issues, limitations in the free version, and crashes on certain devices.

Jnotes is an Android handwriting notes app with PDF annotation support, OCR, and an AI assistant for resume and flashcard creation, designed for students and professionals.

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.

An app for organizing schedules with color-coded events, notes and reminders. Offers data export/import and PIN-code protection.

Cross-platform note-taking app with Markdown support, Kanban boards, and whiteboard, syncing via Git/GitHub or local file system.

Samsung Smart Switch Mobile allows transferring contacts, photos, music, messages and other data between Galaxy devices, as well as from other Android and iOS devices, but often requires Wi-Fi connection and suffers from compatibility issues and instability.

Google Sheets is a cloud application for creating and collaboratively editing spreadsheets with offline support, auto-save, and Excel integration.