| Core Identity |
| Developer | Diligent Corporation | Good.iWare, Inc. | Kdan Mobile Software LTD | PZ Mobile Limited | Johnson Controls, Inc. | Richard Fallat |
| Category | Productivity | Productivity | Productivity | News | Productivity | Productivity |
| Platform | iOS | iOS | iOS | iOS, Android | iOS | iOS |
| Store Metrics |
| Rating | 3.3 / 5 | 4.7 / 5 | 4.5 / 5 | 4.3 / 5 | 5.0 / 5 | 0.0 / 5 |
| Ratings Count | 43 | 267 | 167 | 33 | 6 | 0 |
| Price | Free | $79.99 | $19.99 | Free | Free | $4.99 |
| Release Date | Feb 2, 2011 | Mar 9, 2019 | Oct 31, 2014 | Jan 13, 2016 | Aug 20, 2020 | Dec 18, 2025 |
| Last Updated | May 8, 2026 | Nov 29, 2025 | May 23, 2023 | Dec 4, 2017 | Feb 7, 2023 | Mar 4, 2026 |
| Sentiment & Reviews |
| Sentiment | - | mixed | mixed | mixed | - | - |
| Score | - | 55/100 | 65/100 | 45/100 | - | - |
| Praises | - | - Reliable PDF viewing and annotation tools provide consistent value for daily document management workflows
| - PDF management and document annotation tools provide high utility for professional and academic workflows
| - Dropbox integration provides a reliable method for syncing research links across desktop and mobile devices
| - | - |
| Complaints | - | - Integration failures with cloud storage services disrupt file access and synchronization across mobile devices
| - Application launch failures and freezing on the startup screen prevent access to stored documents
| - Mandatory Dropbox account linkage during signup prevents users from maintaining local and private data storage
- Functional regressions following the latest update render the application unusable on current mobile operating systems
| - | - |
| Requests | - | - Cross-platform synchronization for bookmarks and settings to maintain continuity across different device environments
| - File management options to move documents between folders without requiring copy and delete steps
| - Development of a dedicated tablet interface to improve the research and link management experience
| - | - |
| Strategic Intel |
| Strengths | - Enterprise-grade security protocols sustain B2B contract renewals
- Specialized annotation tools drive high-utility retention for board members
| - AES-256 encryption functions as a high-switching-cost security moat [Productivity Segment]
- Offline-first architecture reduces dependency on unstable cloud connections [Core Utility]
- Legacy brand trust sustains a dedicated power-user base [Market History]
| - Creativity 365 bundle creates multi-app switching cost
- AI-driven summarization differentiates from standard PDF readers
| - Dropbox-native file storage enables cross-platform management
- Audio narration expands usage to transit environments
| - | - Spatial workspace blocks eliminate tab fatigue on Vision Pro
- On-device Apple Intelligence processing ensures user data privacy
|
| Weaknesses | - 3.3-star rating indicates friction in the user experience
- Reliance on web-portal authentication limits independent app utility
| - $79.99 upfront price exceeds category median [Pricing Strategy]
- Persistent cloud-sync failures reported in user reviews [Sentiment Data]
- Lack of a simple data-migration path from the classic version [User Experience]
| - Startup crashes on launch
- Navigation regressions in multi-page view
- Subscription tier above category median
| - Mandatory Dropbox linkage causes high signup abandonment
- Functional regressions post-update erode user trust
| - | - No cloud-based file synchronization across devices
- $4.99 price point lacks a recurring revenue model for sustained development
|
| Pricing | subscription | paid | subscription | free | free | paid |
| Momentum | Maintenance | Steady | Zombie | Active | - | Maintenance |
| Update Cadence | 1 versions | 5 versions | 5 versions | 5 versions | - | 1 versions, 1 majors/6mo |
