proLibro vs Fable Frog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
proLibro
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Introducing proLibro, the ultimate destination for digital reading enthusiasts. Dive into a world where imagination knows no bounds, where every page-turn unveils new adventures, knowledge, and inspiration. Experience unparalleled convenience with our user-friendly interface, meticulously crafted to enhance your reading journey. Embrace the future of reading with our cutting-edge technology. With seamless synchronization across devices, your reading progress, notes, and annotations are always at your fingertips, allowing you to pick up right where you left off, anytime, anywhere. You’ve never searched and interacted with content like this before. Some of our key features include: • Immersive content reading experience • Powerful multi-title capable search • Ability to add annotations and notes to your content.
Fable Frog
This app is a native iOS client for Audiobookshelf, offering a premium listening experience for your self-hosted audiobook library. Enjoy features like variable playback speed, sleep timers, offline downloads, and detailed listening statistics. It also includes a deals feature to track Audible prices and a dedicated Carplay interface.
- Variable playback speed and volume boost
- Sleep timer with presets
- Chapter navigation with durations
- Bookmarks with notes
- Per-book playback settings
- Offline downloads with smart management
- Listening statistics and charts
- CarPlay and widget support
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The best way to enjoy your audiobooks. Fable Frog is a native iOS client for Audiobookshelf — built from the ground up for a premium listening experience. Connect to your self-hosted server and enjoy your library with a beautiful, feature-packed player designed for how you actually listen. PLAYBACK THAT JUST WORKS • Variable speed (0.5x – 3x) and volume boost up to 200% • Sleep timer with presets, custom duration, or end of chapter • Shake to extend your timer without opening your phone • Chapter navigation with durations at a glance • Bookmarks with notes up to 5,000 characters • Per-book playback settings that remember how you like each title • AirPlay streaming to your favorite speakers YOUR LIBRARY, YOUR WAY • Browse by books, authors, series, narrators, or genres • Filter by progress and genre, sort by title, author, date added, duration, or last listened • Instant search across your entire library • Follow series and track upcoming releases automatically • Create custom playlists, rate and review books • Alphabetical index for jumping through large collections DEALS Fable Frog watches Audible prices for the books you want and tells you when one goes on sale. Deals is part of Fable Frog Premium. • Import your whole Audible wishlist with the Fable Frog extension in Safari, member prices included • Choose what counts as a deal: a percent off, a price limit, or cheaper than a credit OFFLINE DOWNLOADS Download books and listen anywhere — no connection needed. Smart Downloads automatically grab your next listen and clean up finished titles. Wi-Fi only mode keeps your data plan safe. LISTENING STATISTICS Understand your listening life with daily, weekly, monthly, and yearly charts. See genre breakdowns, top series rankings, speed savings, finished book trophies, and fun facts about your habits. CARPLAY A dedicated driving interface built for safe, distraction-free listening in the car. Large touch targets, simplified controls, and quick access to recent and library books. WIDGETS Lock screen widget with a circular progress gauge for your current listen. iOS 18 Control Center widgets for quick play/pause without leaving what you're doing. MAKE IT YOURS • 20 themes including 3 accessibility-optimized options • Custom app icons (Neon, Sunset, Forest) • 6 text size levels from XS to XXL • Customizable lock screen widget icons • Configurable skip durations and player controls BUILT FOR EVERYONE • Full VoiceOver support with comprehensive labels and adjustable controls • Voice Control compatible — navigate by voice • Dynamic Type support — text scales to 200%+ with in-app size slider • Accessibility themes: High Contrast (AAA), Blue-Orange (CVD), Pink-Teal (CVD) • Differentiate Without Color support — shapes and icons supplement color • All themes validated for WCAG AA contrast standards • Respects Reduce Motion and Reduce Transparency system settings • Car mode with extra-large touch targets • Siri integration for hands-free playback control PRIVACY FIRST No analytics. No telemetry. No tracking. No ads. Your data stays between your device and your server — nothing else. Credentials are stored exclusively in the iOS Keychain. CONNECTS TO YOUR SETUP • Username/password and OIDC authentication (Keycloak, Authelia, Authentik, and more) • Custom HTTP headers for reverse proxies (Caddy, Nginx, Traefik) • Multi-library support on the same server • Several accounts and servers, with a quick switcher on Home • Automatic token refresh and session management Available in 15+ languages with full RTL support. Requires a self-hosted Audiobookshelf server (v2.x). Fable Frog is an independent third-party client and is not affiliated with the Audiobookshelf project. Terms of Service: https://fablefrog.app/terms Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stddla/ Privacy Policy: https://fablefrog.app/privacy
Screenshots
Verdict
The clearest difference is update cadence: Fable Frog at every 6 days against proLibro's monthly. proLibro's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. proLibro sells 6 one-off in-app purchases and Fable Frog sells 2 in-app purchases, starting at $8.00 per year. Whichever you choose, the download price is not the number that matters.
proLibro ships an update monthly, Fable Frog every 6 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.
| Parameter | proLibro | Fable Frog |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (3 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Monthly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, Apple Watch |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 55 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | CogniLore | Paul DeVito |
In-app purchases
proLibro
- Purchase 200 proLibro Credits$2.99
- Purchase 500 proLibro Credits$6.99
- Purchase 1000 proLibro Credits$12.99
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- Purchase 2000 proLibro Credits$24.99
- Purchase 5000 proLibro Credits$64.99
- Buy 10 000 proLibro Credits$129.99
Fable Frog
- Premium Annual$8.001 Year
- Premium Lifetime$12.00









