| Core Identity |
| Developer | 婷婷 乔 | ComcSoft Corporation | Tsz Chung Chau | Readdle Technologies Limited | Docusign | INTSIG Information Co., Ltd | Mega Limited | Microsoft Corporation |
| Category | Productivity | Utilities | Productivity | Productivity | Productivity | Productivity | Productivity | Productivity |
| Platform | Android, iOS | Android, iOS | iOS, Android | Android, iOS | Android, iOS | iOS | iOS, Android | Android, iOS |
| Store Metrics |
| Rating | 4.6 / 5 | 4.8 / 5 | 1.0 / 5 | 4.8 / 5 | 4.9 / 5 | 4.9 / 5 | 4.6 / 5 | 4.7 / 5 |
| Ratings Count | 53,222 | 61,997 | 1 | 614,518 | 810,097 | 1,790,119 | 100,943 | 485,259 |
| Price | Free | Free | $0.29 | Free | Free | Free | Free | Free |
| Release Date | Sep 19, 2017 | Jan 13, 2011 | Sep 15, 2025 | Apr 1, 2010 | Nov 1, 2011 | Aug 28, 2010 | Nov 26, 2013 | Dec 13, 2011 |
| Last Updated | Apr 29, 2026 | Apr 28, 2026 | Sep 15, 2025 | Apr 14, 2026 | Apr 8, 2026 | Apr 10, 2026 | Apr 8, 2026 | May 11, 2026 |
| Sentiment & Reviews |
| Sentiment | mixed | mixed | mixed | positive | positive | mixed | mixed | negative |
| Score | 65/100 | 55/100 | 75/100 | 78/100 | 72/100 | 45/100 | 58/100 | 25/100 |
| Praises | - Core compression utility provides reliable file extraction for diverse archive formats
- User interface simplicity allows for quick file management without unnecessary complexity
| - Native support for compressed file formats provides a reliable utility for managing archives on mobile
| - Native support for diverse archive formats provides a reliable utility for file management
| - Ease of Use and Interface
- Cross-Platform/Device Utility
| - Simplified document signing process saves significant time for business owners and casual users alike
| | - Generous Free Storage
- Media Editing Utility
| - Convenient file access across multiple devices keeps professional workflows moving for long-term subscribers
|
| Complaints | - Aggressive advertising patterns disrupt the user experience during routine file operations
- Technical instability causes application crashes and file processing failures post-update
| - Aggressive monetization tactics and intrusive advertisements disrupt the core file management workflow for free users
| - Aggressive subscription prompts appearing at the start of sessions frustrate non-paying users
| - Aggressive Monetization
- Performance and Stability Issues
| - Account creation and login friction prevent users from accessing basic document signing functionality post-update
| - Aggressive Monetization
- Data Loss & Support
| - App Stability and Crashes
- Data Loss
| - Forced migration from the standalone scanning app creates friction and reduces document quality for users
- Broken video playback controls prevent full screen viewing and playback speed adjustments post-update
|
| Requests | - One-time license purchase option requested to replace recurring subscription models
| - Implementation of a one-time purchase model to replace the current subscription-based monetization strategy
| - Editing capabilities for compressed archives would improve the utility of the mobile application
| - | - Improved fillable form functionality to eliminate the need for manual text box creation
| - | - | - Simplified navigation to return to the root directory without repetitive back button usage
|
| Strategic Intel |
| Strengths | - Broad archive format support sustains high organic install velocity
- Batch media compression serves as a high-utility professional-tier hook
| - Multi-format archive engine sustains utility-based retention
- Biometric security integration justifies professional-tier pricing
- Cloud-storage integration reduces file-management friction
| - Desktop-heritage reputation builds initial user trust
- Multi-format support covers 90%+ of common archive needs
| - Modern and intuitive UI/UX compared to legacy competitors
- Advanced AI integration (transcription, smart eraser)
- Massive social proof with 2.2M+ ratings
| - ISO 27001 SSAE16 compliance establishes a high-trust barrier for enterprise adoption
- Unlimited free signing drives massive top-of-funnel acquisition
| - Massive 300M+ user base
- 41-language OCR support
- Advanced multi-format conversion (Excel, Word, PPT)
| - Mandatory Zero-Knowledge E2EE architecture
- Integrated encrypted chat and video conferencing
- High base free storage tier (20GB+)
| - Ecosystem network effects driven by deep Windows and Office integration
- Personal Vault security serves as a high-value differentiator for enterprise users
|
| Weaknesses | - 0.45★ Android-iOS rating gap indicates platform-specific technical debt
- Aggressive ad frequency disrupts core file-management workflows
- Technical instability post-update causes file processing failures
| - Intrusive ad-placements block functional UI buttons
- Lack of bulk-selection tools hinders workflow efficiency
- Stability issues during large archive processing
| - Aggressive subscription prompts drive negative sentiment
- Stability regressions during background file operations
- Lack of cloud-service integration
| - User friction from aggressive subscription paywalls
- Performance regressions (crashing, overheating) in recent updates
- Lack of granular network protocol depth compared to GoodReader
| - Account creation friction post-update creates a barrier to entry
- Cancellation flow is frequently cited as intentionally confusing
| - Aggressive paywalling of legacy free features
- Mandatory watermarks on free tier
- Reports of data loss and poor support responsiveness
| - Frequent app crashes and stability issues after updates
- Permanent data loss risk if password/recovery key is lost
- Lack of a broader productivity ecosystem (Mail/Docs)
| - 0.1★ rating gap between iOS and Android
- High-frequency complaints regarding background sync reliability
- Forced migration from standalone scanning tool creates user friction
|
| Pricing | freemium | freemium | freemium | freemium | freemium | subscription | freemium | freemium |
| Momentum | Maintenance | Maintenance | Maintenance | Active | Steady | Active | Active | Active |
| Update Cadence | 5 versions, 3 majors/6mo, ~66d avg | 5 versions, 2 majors/6mo, ~50d avg | 2 versions, ~112d avg | 5 versions, 1 majors/6mo, ~7d avg | 5 versions, 2 majors/6mo, ~12d avg | 5 versions, 1 majors/6mo, ~6d avg | 5 versions, 1 majors/6mo, ~8d avg | 5 versions, 1 majors/6mo, ~10d avg |
