NotesHub: Notes, Kanban Boards

Obsidian is an app for creating a knowledge base from local Markdown files with graph visualization and plugins; on mobile platforms it suffers from numerous bugs with interactivity and text input.

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.

2Do adapts to my needs, not the other way around.

Simple text notepad with markdown support, note encryption (AES-256), folder organization, and plain text file storage. Works offline and has stability issues on some Android versions.

A task management app with kanban board support that allows adding reminders, deadlines, and priorities, as well as placing cards in augmented reality. Syncs data across devices, supports collaboration via SharePlay and integrates with Reminders and Siri.

Mobile client for managing Obsidian tasks with push notifications, widgets, and synchronization via iCloud Drive / Dropbox, focused on Markdown format and Tasks plugin.

Invoicing and estimation app with support for printing/email delivery, barcode scanning, offline functionality, subscription model, and cross-device synchronization.