Voilo

Invoice.app is a powerful yet simple invoice maker and billing app, designed with ease of use in mind.

Smart Invoices lets you photograph or import paper invoices and bills, extract all the data automatically with AI, and keep a searchable archive on your phone — with groups, statistics, PDF export, an

iScanner allows scanning documents with a phone camera, editing PDFs and managing files in the cloud, but features aggressive monetization (limited exports in the free version) and stability issues with recognition and processing.

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

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.

PDFelement is a multifunctional PDF document application featuring editing, reading, scanning, OCR and AI tools, but functionality verification is not possible due to the absence of user reviews.

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.

Mobile app for fast scanning of documents and photos into PDF/JPEG with professional filters, editor and digital signature, requiring a paid subscription for export and core functionality.