Approval Studio – Artwork Approval & Design Review Software

# Approval Studio > Approval Studio is cloud-based online proofing software for real-time design review and artwork approval. It combines annotation, version comparison, project management, AI assistance, and client collaboration in one auditable platform. Serving creative agencies, in-house marketing teams, packaging designers, and regulated industries worldwide. Approval Studio centralises the design review-and-approval loop so teams catch errors early, reduce revision cycles, and get designs to market faster. External clients can review and comment without creating an account. All actions are logged for audit trails. ## Core Platform - [Overview](https://approval.studio/): Online proofing platform combining annotation, version comparison, project management, AI assistance, and external client review. Supports 23+ file formats. Available in 6 languages. - [Pricing](https://approval.studio/pricing/): Lite ($60/mo), Pro ($160/mo), Pro XL ($300/mo), Enterprise (custom). Annual billing saves 10%. All plans include a free trial. - [Features Overview](https://approval.studio/features/): Complete list of all review tool, project management, and integration features. - [Security](https://approval.studio/security/): Industry-standard security practices and data handling. - [System Status](https://approval.studio/system-status/): Live uptime and incident information. ## Review Tool Features - [Annotations](https://approval.studio/features/annotations/): 5 annotation shapes (rectangle, ellipse, line, arrow, freehand) with threaded comments and color coding. - [Comparison Modes](https://approval.studio/features/comparison-modes/): 4 modes — Side-by-side (synchronized zoom), Fader (slider between versions), Difference (shows only changes), Toggle (dynamic switch). All support zoom and rotation. - [External Review](https://approval.studio/features/external-review/): Invite unlimited clients via link or email. No account registration required. Optional password protectio