| Core Identity |
| Developer | mlet co.,ltd | AMZN Mobile LLC | READERA EOOD | OverDrive, Inc. | Perpustakaan Nasional Republik Indonesia | himalaya-soft | Pocketbook International SA | Apple | Kimico, Ltd. |
| Category | Book | Book | Book | Book | Book | Book | Book | Book | Book |
| Platform | iOS | Android, iOS | Android, iOS | Android, iOS | iOS, Android | iOS, Android | Android, iOS | iOS | iOS |
| Store Metrics |
| Rating | 0.0 / 5 | 4.9 / 5 | 4.2 / 5 | 4.9 / 5 | 3.8 / 5 | 3.9 / 5 | 4.5 / 5 | 4.4 / 5 | 4.8 / 5 |
| Ratings Count | 0 | 5,609,451 | 215 | 4,237,103 | 9 | 7 | 9,094 | 77,460 | 13,942 |
| Price | USD0.99 | Free | Free | Free | Free | $2.99 | Free | Free | Free |
| Release Date | Dec 23, 2017 | Mar 4, 2009 | Jan 5, 2024 | Dec 12, 2016 | Sep 9, 2016 | Jul 7, 2013 | Feb 16, 2014 | Apr 2, 2010 | Oct 9, 2010 |
| Last Updated | Feb 12, 2024 | May 5, 2026 | Apr 7, 2026 | Feb 19, 2026 | Mar 10, 2025 | Jul 29, 2024 | Feb 9, 2026 | Dec 12, 2025 | May 17, 2026 |
| Sentiment & Reviews |
| Sentiment | - | mixed | excellent | positive | - | - | - | - | excellent |
| Score | - | 65/100 | 92/100 | 82/100 | - | - | - | - | 85/100 |
| Praises | - | - Extensive digital library access allows readers to carry entire collections anywhere without physical storage constraints
- Subscription services provide cost-effective access to a vast catalog of diverse reading materials for avid users
- Customizable reading environment features like font sizing and background colors improve accessibility for daily users
| - Ad-free reading experience provides a clean and distraction-free environment for long-form content consumption
- Broad file format compatibility allows users to consolidate their entire digital library into one application
| - Free access to extensive digital library collections provides significant value for budget-conscious readers
| - | - | - | - | - Barcode scanning functionality significantly reduces the time required to catalog large personal book collections
|
| Complaints | - | - Recent updates introduced navigation regressions that remove essential library sorting and collection management tools
- Aggressive and repetitive review prompts interrupt the reading experience and frustrate long-term power users
- In-app purchase restrictions and complex login flows create friction for users attempting to acquire new content
| - Text-to-speech functionality suffers from robotic voice quality and inconsistent pacing during sentence transitions
| - Audiobook playback issues including intermittent stops and volume inconsistencies disrupt the listening experience
| - | - | - | - | - Aggressive in-app review prompts interrupt user workflows and degrade the overall experience after completing actions
|
| Requests | - | - Restoration of granular library sorting tools to manage large collections of purchased and borrowed titles
- Implementation of robust parental controls to filter explicit content from feeds and search results
| - Advanced file organization features would allow users to sort documents into custom collections or folders
| - Increased digital copy availability to reduce wait times for popular books and audiobooks
| - | - | - | - | - Advanced sorting and filtering options for personal tags and series tracking would improve library management
|
| Strategic Intel |
| Strengths | - One-time payment model functions as a low-friction barrier for budget-conscious users
| - Cross-device sync creates high switching costs for users with large digital libraries
- Deep Amazon retail integration ensures a frictionless content acquisition funnel
- Editors' Choice badge across five markets sustains organic install velocity
| - Ad-free, registration-free policy creates high user trust
- Format-agnostic rendering engine reduces user switching costs
- Lightweight performance ensures stability on legacy hardware
| - B2B distribution moat via public library partnerships
- Zero-cost access model eliminates user acquisition spend
- Kindle integration reduces hardware switching costs
| - | - | - | - | - One-time purchase model creates a clear value proposition against subscription-heavy rivals
- Barcode scanning engine minimizes data entry friction for large collections
|
| Weaknesses | - Content gated behind a $0.99 purchase limits top-of-funnel conversion
| - Navigation regressions in the latest update removed essential library sorting
- Aggressive review prompts interrupt the reading flow for power users
- In-app purchase restrictions create friction for new content acquisition
| - Lack of cloud-sync forces manual file management
- Text-to-speech engine produces robotic, inconsistent audio
- No monetization model limits long-term development budget
| - Audiobook playback stability issues
- Inventory scarcity causes long hold queues
- Account synchronization failures across devices
| - | - | - | - | - Aggressive review prompts degrade the user experience
- Lack of native household sharing forces redundant purchases for families
|
| Pricing | paid | freemium | free | free | free | paid | free | free | freemium |
| Momentum | - | Active | Active | Maintenance | Intense | Intense | Active | - | Maintenance |
| Update Cadence | - | 5 versions, ~14d avg | 5 versions, 3 majors/6mo, ~15d avg | 2 versions, ~42d avg | 5 versions | 5 versions | 5 versions | - | 3 versions, 1 majors/6mo, ~57d avg |
