Comparison

Cynapps AudioBook Player vs AudioSilo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Cynapps AudioBook Player

This app allows you to play your own local audiobooks and podcasts without needing an account or subscription. It offers various methods for transferring files and provides advanced playback features for an enhanced listening experience.

Highlights
  • Local file transfer via web server, LocalSend, or Files app
  • Full chapter navigation for M4B files
  • Customizable playback speed (0.5x to 2.5x)
  • Sleep timer with fade-out
  • Bookmark creation with notes
  • Podcast subscription and auto-downloading
  • Lock screen and Control Center integration
Read full description

Cynapps AudioBook Player is a private, local-first audiobook player for the books you actually own. Drop in your own m4b, mp3, m4a, aa, or aax files — no accounts, no subscriptions, no library to "log in" to. Everything stays on your device. GETTING BOOKS IN • Local web server: turn on a built-in mini-site on your phone, open the URL on any laptop on the same Wi-Fi, and drag files in from a browser. No cables, no cloud round-trip. • LocalSend: receive audiobooks from another phone, the LocalSend desktop app, or any LocalSend-compatible client. Audio-only files are accepted; everything else is silently dropped. • Files app: registers as a handler for audio types, so Open In… from Mail, Safari, Files, or AirDrop just works. PLAYBACK • Full chapter navigation for m4b files — tap the chapter row for the table of contents and jump anywhere. • Folder-of-mp3 books group automatically by album metadata. 17 chapter MP3s become one book. • Speed control 0.5× to 2.5×, preserving voice quality (time-domain audio stretching, not pitch-shifted chipmunk). • Sleep timer with a smooth 10-second fade-out instead of an abrupt cut. End-of-chapter sleep available too. • ±30s skip, scrubbable progress bar with chapter-relative or whole-book modes. • Per-book playback memory — pick up exactly where you left off, even across track boundaries in multi-file books. • Bookmarks: tag any moment with an optional note, jump back to it later. • Lock screen and Control Center support — title, cover art, scrub bar, transport buttons. PODCASTS • Subscribe to a podcast feed by URL. • Auto-downloads the most recent 20 episodes for offline listening, up to 4 at a time, with progress per file. • Continuous play: when one episode finishes, the next starts automatically. ⏮/⏭ jumps between episodes. PRIVACY • No accounts. No analytics. No tracking. No ads. • All audio files and listening progress stay on your device. • The only network traffic is local Wi-Fi (when you enable the web server or LocalSend) and direct downloads from podcast feeds you explicitly subscribe to. Built for people who buy their audiobooks, rip their own, or follow podcasts they care about — and want a player that respects that.

About

AudioSilo

Features
Read full description

AudioSilo is a beautiful audiobook player for the library you host yourself. Run the free AudioSilo server on your own hardware, point it at your audiobooks, and listen on your phone, tablet and in the browser. Your books, your data, no subscription. NOTE: AudioSilo plays from an AudioSilo server that you (or whoever runs your server) set up. You need a server to sign in. Want to try it first? A live demo with public-domain audiobooks is at demo.audiosilo.app. A PLAYER MADE FOR LISTENING • Chapter scrubber and a full-book timeline with your bookmarks and notes pinned to it • Variable speed, configurable skips and a sleep timer that fades out, extends with a shake, and can start itself every night • Resume exactly where you left off, on any device, with an undo if a place ever jumps • Background playback with lock-screen and headphone controls YOUR SERIES, ON THE SHELF • Every series stands on a shelf in reading order • Books you don't own yet show up as ghost spines, so you can see what's missing • An Up next queue that plays the next book automatically when you want it to NEVER LOSE THE THREAD • Who's who: characters from the community, revealed only as you reach them • Story so far: recaps that stop exactly where you are, with no spoilers • Bookmarks with labels, notes, and a journal of everything you've listened to, with export YOUR LISTENING, IN NUMBERS • Streaks, a yearly goal and a calendar of every day you listened • Your listening clock, top authors, narrators and series • Your year in listening as a story, with cards you can share YOUR LIBRARY, YOUR WAY • Browse by author, series, narrator, collection or folder • Fast search across titles, people, series and characters • Collections, favourites, ratings and listening history • Download books for offline listening • Use more than one server, and let the app switch between your home and away addresses • Light and dark themes, in English, Spanish, French, German, Portuguese and Italian PRIVATE BY DESIGN • No account with us, no ads, no tracking, no analytics • Everything lives on your server and your device • The app only talks to the servers you choose The AudioSilo server is free and open source (AGPLv3). Get it, read the docs and learn more at audiosilo.app.

Screenshots

Cynapps AudioBook Player4 screens
AudioSilo4 screens

Verdict

The call

Cynapps AudioBook Player and AudioSilo are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Cynapps AudioBook Player versus AudioSilo: the parameters behind the verdict, then further details
ParameterCynapps AudioBook PlayerAudioSilo
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequency—Every 9 days
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS16.616.4 — better
Further details — not scored
Size2 MB57 MB
Age rating4+4+
DeveloperCynapps LimitedChristopher Hunt

In-app purchases

None

Cynapps AudioBook Player

No in-app purchases

None

AudioSilo

No in-app purchases

Questions

Is Cynapps AudioBook Player free?
Cynapps AudioBook Player is free to download, with no in-app purchases.
Is AudioSilo free?
AudioSilo is free to download, with no in-app purchases.
Do Cynapps AudioBook Player or AudioSilo have ads?
Neither Cynapps AudioBook Player nor AudioSilo shows ads.

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