Comparison

Synapse Reads vs DocReader

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

Head to head
About

Synapse Reads

Features
Read full description

Stop letting your reading disappear. You finish a book, feel changed by it, and three weeks later can't remember a single idea. Synapse fixes that. READING SESSIONS Open any book and start a session. Synapse tracks your reading time while you capture highlights — scan a page, type a quote, or read it aloud and let AI transcribe it instantly. When you finish, see exactly how long you read, what you captured, and whether Synapse found a new connection during that session. FLASH INSIGHTS When two highlights from different books share an unexpected idea, Synapse surfaces it automatically. Powered by Claude, the connections go beyond the obvious — finding threads across books you read years apart that you never would have noticed yourself. THREE WAYS TO CAPTURE Scan physical pages with your camera. Type or paste quotes directly. Or hold the mic and read a passage aloud — Whisper transcribes it and shows you the text to confirm. However you read, capturing a highlight takes seconds. CHAT WITH YOUR LIBRARY Ask your entire collection a question. "What do my books say about focus?" "Find a quote I saved about habits." Every answer comes from your own highlights — not the internet. IMPORT YOUR KINDLE HIGHLIGHTS Upload My Clippings.txt and your entire Kindle library arrives instantly — with covers, metadata, and connection checks running automatically. WHO IS THIS FOR? Non-fiction readers who want their highlights to actually do something. People who finish books and want to remember them. Anyone building a reading habit who wants to see it grow. Download Synapse and make everything you read count.

About

DocReader

This app allows you to read PDFs and EPUBs offline, with a text-to-speech feature that reads content aloud. It offers customizable reading settings and supports various file formats, keeping your library local.

Highlights
  • Offline PDF and EPUB reading
  • Text-to-speech with highlighting
  • Customizable reading comfort settings
  • Local library management
  • Support for various file formats
  • On-device OCR for scanned PDFs
Features
Read full description

DOCREADER — READ PDFS & EPUBS, LISTEN OFFLINE, KEEP YOUR LIBRARY LOCAL DocReader is a full-featured reader for study, work, and leisure: open PDFs and EPUBs from your device, resume where you stopped, and switch to read-aloud with highlighting when your eyes need a rest. Use your system voices or optional offline engines you download once—no account with us required. Navigation keeps essentials one gesture away: open files, Project Gutenberg, quick theme and TTS shortcuts, full Settings, and your recent list. READ-ALOUD & VOICES Start, pause, resume, or stop from the document toolbar; highlighting tracks speech when content supports it. Skip configured headings or lines during read-aloud for manuals and reference EPUBs. Pick your engine: System TTS uses built-in OS voices—no extra download. Kokoro-style offline voices (Sherpa ONNX) prioritize natural speech via an optional pack; synthesis stays on-device after install. Supertonic is a separate optional pack for very fast on-device speech—great for long documents or cooler phones on marathon listens. Adjust rate and speaker where offered; optionally keep the screen awake during playback. READING COMFORT Light, dark, or system theme. PDF dark mode is tuned for legibility without harsh glare. Set default PDF and EPUB view scale (fit page, fit width, or other offered modes) and document scroll speed. Quick toggles and in-document panels expose theme, fonts where available, and key reading settings without deep menu hunting. The full Settings screen groups theme, scroll speed, scale defaults, voice-pack status, TTS engine selection, speakers, and keep-awake options in one place. While viewing a document, open TTS settings from the drawer to change engines, speakers, or start voice-pack downloads. LIBRARY & EVERYDAY WORKFLOW The home screen lists recent documents with timestamps for quick return visits. Open files through the system picker; imports stay under your control, not a proprietary cloud. With Remember reading position enabled, DocReader restores the last page or section next time. On iOS, materials may appear under Files when the system surfaces the app documents folder—handy alongside your other backups. FORMATS FOR REAL FILES Smooth PDF viewing with zoom and default scale modes tuned separately from EPUB. Reflowable EPUBs suit novels and structured nonfiction. Beyond books, open many plain-text and code-adjacent types—Markdown, logs, subtitles, configs, JSON, CSV, common source extensions, and more—plus HTML and popular image formats. Unsupported archives or office packages may hand off to another installed app when the platform allows. SCANNED PDFS / OCR When a PDF has no text layer, on-device OCR (where the platform supports it) recovers text for reading and read-aloud and supports page-space highlights—without sending page images to a DocReader cloud OCR service. PROJECT GUTENBERG From the drawer, browse and download public-domain titles when online; files join your local library for offline reading and listening. Catalog hosts are third parties; availability may vary. DESKTOP & MOBILE Use DocReader on phones, tablets, and supported desktops with layout and window chrome suited to each environment—including draggable title areas on desktop where provided. PRIVACY IN BRIEF Library metadata, preferences, and positions stay on your device. The network is used when you choose features that need it—Gutenberg discovery/downloads or optional voice archives—not to silently upload your private collection. See the linked Privacy Policy for details. SUPPORT Questions or bugs: 2asoftwaredevelopers@gmail.com — include device, OS, and app version (build shown in the drawer when available). Thank you for choosing DocReader—read deeply, listen comfortably, stay in control of your library.

Screenshots

Synapse Reads4 screens
DocReader4 screens

Verdict

The call

Synapse Reads and DocReader are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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.

UpkeepUpdate frequency

Synapse Reads ships an update every 4 weeks, DocReader every 3 weeks. The most recent releases landed on October 11, 2026 and October 5, 2026 respectively.

ScorecardNo meaningful differences
Synapse Reads versus DocReader: the parameters behind the verdict, then further details
ParameterSynapse ReadsDocReader
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 4 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS15.1 — better16.4
Further details — not scored
Size32 MB75 MB
Age rating4+4+
DeveloperAnsh DaveEmmanuel Adooli

In-app purchases

None

Synapse Reads

No in-app purchases

None

DocReader

No in-app purchases

Questions

Is Synapse Reads free?
Synapse Reads is free to download, with no in-app purchases.
Is DocReader free?
DocReader is free to download, with no in-app purchases.
Do Synapse Reads or DocReader have ads?
Neither Synapse Reads nor DocReader shows ads.
Which is updated more often, Synapse Reads or DocReader?
Synapse Reads ships an update every 4 weeks, and DocReader every 3 weeks. Most recently, Synapse Reads was updated on October 11, 2026 and DocReader on October 5, 2026.

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