File Studio vs Proofapp
Side-by-side comparison to help you choose the right product.
File Studio
File Studio offers powerful offline tools to convert, compress, merge, and edit files securely on your Mac or Windows.
Last updated: February 25, 2026
Proofapp
Proof lets teams and clients leave contextual comments directly on website screenshots, streamlining the design review and approval process.
Visual Comparison
File Studio

Proofapp

Overview
About File Studio
File Studio is a robust desktop application designed to process PDFs and images entirely offline on your Mac or Windows PC. This powerful tool is tailored for individuals and professionals who handle sensitive documents such as passports, IDs, and contracts, providing a level of privacy that cloud-based solutions cannot offer. By enabling users to merge multiple PDFs, split documents into pages, reorder and rotate files, remove passwords, and convert files to various image formats, File Studio simplifies the management of digital assets without compromising security. With support for over 20 file formats including HEIC, WebP, AVIF, and various RAW types, it caters to a wide audience including photographers, freelancers, and remote workers who prioritize speed and confidentiality in their workflow. With a one-time purchase model, users gain lifetime access to the software, ensuring they can rely on its capabilities without ongoing subscription fees.
About Proofapp
Proof is a visual feedback and website review platform that helps designers, developers, and their clients collaborate more efficiently. Upload any website URL and Proof automatically captures desktop and mobile screenshots. Reviewers can pin comments directly on the design, reply in threads, attach files, and resolve feedback — all without needing an account. Features include real-time notifications, Slack integration, multi-page support, customizable accent colors, and a generous free tier. Whether you're a freelancer collecting client feedback or an agency managing multiple projects, Proof eliminates the confusion of scattered emails and vague revision notes by keeping all feedback visual, organized, and actionable.