| Core Identity |
| Developer | LiquidText, Inc. | Beijing Yunsi Software Technology Co., Ltd | MyScript | Ginger Labs | Goodnotes Limited | Jonas Myren Ribe | Dynalist Inc. | DEVONtechnologies, LLC | Zotero |
| Category | Business | Productivity | Productivity | Productivity | Productivity | Productivity | Productivity | Productivity | Productivity |
| Platform | iOS | iOS | iOS, Android | Android, iOS | iOS, Android | iOS | iOS, Android | iOS | iOS, Android |
| Store Metrics |
| Rating | 4.7 / 5 | 4.7 / 5 | 4.7 / 5 | 4.8 / 5 | 4.7 / 5 | 4.5 / 5 | 4.5 / 5 | 4.6 / 5 | 4.7 / 5 |
| Ratings Count | 372 | 5,043 | 38,217 | 446,840 | 420,631 | 1,561 | 2,454 | 138 | 401 |
| Price | USD79.99 | Free | Free | Free | Free | Free | Free | Free | Free |
| Release Date | Sep 16, 2016 | Aug 4, 2018 | Aug 10, 2016 | Apr 1, 2010 | Jan 15, 2019 | Apr 10, 2020 | Jul 10, 2021 | Nov 25, 2025 | Mar 17, 2022 |
| Last Updated | Feb 28, 2024 | Nov 29, 2025 | Apr 13, 2026 | May 4, 2026 | May 4, 2026 | Apr 21, 2026 | Mar 23, 2026 | Apr 16, 2026 | Apr 14, 2026 |
| Sentiment & Reviews |
| Sentiment | mixed | mixed | mixed | negative | negative | mixed | mixed | - | - |
| Score | 45/100 | 55/100 | 45/100 | 25/100 | 25/100 | 45/100 | 55/100 | - | - |
| Praises | - Spatial workspace design allows users to map complex ideas across multiple documents simultaneously
| - Powerful mind mapping and annotation tools provide a unique foundation for academic knowledge management workflows
| - Handwriting Recognition
- Note-Taking Experience
| - AI-powered quiz generation provides efficient study tools for complex academic material
| - Handwritten note taking functionality provides a productive study tool for students
| - Cross-device synchronization allows academic researchers to maintain consistent annotation workflows between mobile and desktop environments
- Markdown export functionality provides significant value for organizing research notes and extracting data from documents
| - High Customizability and Flexibility
- Powerful Knowledge Management
| - | - |
| Complaints | - Frequent application crashes and UI freezes disrupt the reading and annotation workflow
| - OCR functionality fails to accurately recognize text in complex academic PDFs and non-Latin scripts
| - Subscription and Pricing Model
- Sync and Stability Issues
| - Persistent note retrieval and synchronization failures render critical academic data inaccessible
| - Frequent application crashes and white screen errors disrupt study sessions post-update
| - Subscription-only pricing model creates long-term financial friction for students and academics on fixed budgets
- Frequent application freezes and crashes during document annotation sessions disrupt the reading workflow
| - Poor Mobile UI/UX and Navigation
- Syncing and Cloud Issues
| - | - |
| Requests | - Redo functionality is missing from the editing toolbar, causing significant data loss during mistakes
| - Integration with cloud storage services like Dropbox and Google Drive for better file management
| - | - Hands-free Siri integration for verbal interaction with AI-generated study content
| - One-time purchase option requested to replace the current subscription model
| - Native support for Apple Pencil handwriting and drawing tools to facilitate technical and mathematical note-taking
| - | - | - |
| Strategic Intel |
| Strengths | - Spatial workspace UX creates high switching costs
- Proprietary ink-link interaction model reinforces category authority
| - Proprietary knowledge-structure format creates high switching costs
- Automated flashcard generation enables unique active-recall study loops
| - Proprietary Interactive Ink technology for superior recognition
- Responsive document reflow for handwriting
- Intuitive gesture-based editing workflow
| - Audio-to-ink sync creates high switching costs
- Multi-format annotation supports complex workflows
| - High switching costs via user-created document archives
- Cross-platform sync across iPad, iPhone, and Mac
| - Lightweight 10MB footprint enables faster launch times than complex study suites
- Markdown-first export architecture integrates into modern research stacks
| - Unmatched extensibility through community plugins and themes.
- Robust local-first architecture ensuring data sovereignty.
- Strong 'second brain' brand identity among power users.
| - | - |
| Weaknesses | - $79.99 upfront cost exceeds category median
- Frequent UI freezes during note-taking
- Lack of basic redo functionality
| - 0.7-star rating gap on complex OCR tasks
- Lack of native cloud-sync integration
- Frequent crash reports during split-view usage
| - Persistent sync conflicts and 'conflicted copy' errors
- Technical instability and crashes on high-zoom levels
- User backlash from subscription model transition
| - Persistent sync failures during study periods
- Intrusive subscription prompts alienate users
| - 0.7★ Android-iOS rating gap
- Frequent post-update stability failures
- Subscription-only gating for legacy features
| - Subscription-only pricing model creates financial friction for students
- Lack of Apple Pencil handwriting tools prevents technical equation sketching
- Application freezes during annotation sessions disrupt the reading workflow
| - Declining mobile UI/UX quality causing user frustration.
- Performance bottlenecks (load times) on mobile devices.
- High learning curve for non-technical users.
| - | - |
| Pricing | paid | freemium | freemium | freemium | freemium | freemium | freemium | freemium | free |
| Momentum | Zombie | Zombie | - | Intense | Active | Maintenance | - | Intense | Intense |
| Update Cadence | 5 versions | 1 versions | - | 5 versions, 4 majors/6mo, ~7d avg | 4 versions, 1 majors/6mo, ~12d avg | 1 versions, 1 majors/6mo | - | 5 versions | 5 versions |
