Invoice.app: Invoice Maker

App for creating invoices and estimates with ready-made templates, PDF export and email delivery. Works on mobile devices, but Russian localization is still incomplete.

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

An app for manual time tracking with payment calculation, report export to Excel/PDF, and invoice generation for clients.

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 app for creating and sending invoices, estimates and receipts with support for online payments via PayPal and Stripe; allows downloading documents as PDF and syncing data across devices.

App for managing inventory, price lists and invoices for small shops and services, with data import/export and PDF invoice generation; major drawback — lack of Russian localization despite user base in Russia.

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.