Pricing

Annotis is a professional PDF reader and note-taker exclusively designed for macOS. We offer a "Free Basic Version + Paid Pro Version" pricing model, balancing accessibility for all users and value for academic/research professionals. The pricing is tailored to macOS user habits and the competitive landscape of PDF tools, focusing on "lightweight, efficient, and research-oriented" core positioning.
Pricing Principles

- Annotis Free: Provides comprehensive basic PDF reading and annotation features, permanently free, ad-free, and watermark-free, to attract users, build brand reputation, and meet the daily PDF viewing needs of general users.

- Annotis Pro: Adds research/academic/efficiency-enhancing features on the basis of the free version. Priced lower than mainstream PDF editors such as PDF Expert and PDFelement, it focuses on "research-specific, lightweight, efficient, and macOS-native".

- Dual payment options: Supports one-time purchase + annual subscription, catering to macOS users’ preference for flexible payment methods.

Annotis Free (Permanent Free)

Price: $0 (Permanent Free)

Included Features (Comprehensive Basic Functions)

- PDF viewing, table of contents/thumbnail navigation, full-screen reading

- Highlighting, text annotations, notes, and snapshots

- Reading progress tracking, bookmarks, search function, reading bar, and magnification tool

- Export notes as text, integration with BibDesk and LaTeX

- AppleScript support, password saving in Keychain, basic customization

- Ad-free, watermark-free, and no time limit on features

Limitations (To Guide Upgrade)

- Annotation limit per document (≤50 annotations per document)

- Not supported: Batch processing, OCR text recognition, PDF editing/conversion, cloud synchronization, advanced export, and team collaboration

- No priority updates or technical support

Annotis Pro (Paid Professional Version)

Pricing (USD)

- Annual Subscription: $29.99 / Year (First-year discount: $19.99)

- Lifetime License: $49.99 (One-time Purchase) (Permanent use + major version updates)

- Education/Student Discount: 50% Off (Valid with edu email, applicable only to the annual subscription plan)

Positioning: 50%+ cheaper than PDF Expert ($79.99/year) and PDFelement ($79.99/year), focusing on "cost-effectiveness for research scenarios".

Pro-Exclusive Features (Core Value-Added)

- Unlimited Annotations: No limit on the number of annotations per document

- Research Enhancement

  - Automatically extract references, citation marks, and cross-reference jumps from papers

  - Batch export notes from multiple documents (in EndNote/Zotero format)

  - Two-page/split-screen comparison reading, paper mode (margin removal, eye protection)

- Advanced PDF Processing

  - OCR text recognition (annotate scanned PDFs)

  - Page merging/splitting/rotating/deletion, PDF compression

  - Annotation style templates, batch highlighting/annotations

- Efficiency & Cloud Sync

  - iCloud/Cloud Drive synchronization (annotations across devices)

  - Night mode, custom themes, and keyboard shortcuts

  - Priority updates and email technical support

- No Restrictions: Full feature unlock, no watermarks, no ads