Comparison

Flow vs DocReader

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

Head to head
About

Flow

Convert any text into natural-sounding speech with customizable voices, speed, and pitch. Save your audio for use in videos, podcasts, or presentations. Processes text on-device for enhanced privacy.

Highlights
  • Text to speech conversion
  • Customizable voice speed and pitch
  • High-quality audio export
  • On-device text processing
  • No character limits
  • Variety of system voices
Features
Read full description

High-Quality Text-to-Speech & Audio Export. Need a voiceover for your next video? Or just want to hear your notes read aloud? TTS Free by Plation Inc. is the simplest way to convert any text into a natural-sounding voice. TTS Free gives you full control over the output, making it the perfect tool for content creators, students, and accessibility needs. Powerful Features: Copy & Paste Simplicity: Just drop your text in and hit play. No complicated setup required. Complete Customization: Choose from a variety of system voices. Fine-tune the Speed and Pitch to get the exact tone you need—from deep narration to high-energy clips. High-Quality Export: Save your speech as an audio file directly to your phone. Perfect for use in video editing apps, podcasts, or presentations. Unlimited Use: No character limits or hidden subscriptions. Just straightforward text-to-speech. Privacy Focused: Your text is processed on-device. We don’t see what you type, and we don’t store your audio. How to use TTS Free: Paste your text into the main box. Select your preferred voice. Use the sliders to adjust how fast or high the voice sounds. Preview the audio, then hit Export to save it for later! Experience the easiest TTS tool on the App Store. Download TTS Free and start creating today.

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

Flow4 screens
DocReader4 screens

Verdict

The call

The clearest difference is price: DocReader at Free against Flow's $0.99. DocReader also leads on iOS requirement (16.4 vs 18.6). On rating, ratings volume, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

DocReader is free to download; Flow costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Flow against 5.0 for DocReader. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Scorecard3 real differences · 6 level
Flow versus DocReader: the parameters behind the verdict, then further details
ParameterFlowDocReader
Price$0.99Free — better
Rating5.0 (2 ratings)5.0 (1 ratings)
Number of ratings2 — better1
Update frequency—Every 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS18.616.4 — better
Further details — not scored
Size4 MB75 MB
Age rating4+4+
DeveloperNow Studio LLCEmmanuel Adooli

Customer experience

Flow

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

DocReader

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Flow

No in-app purchases

None

DocReader

No in-app purchases

Questions

Is Flow free?
Flow costs $0.99, with no in-app purchases.
Is DocReader free?
DocReader is free to download, with no in-app purchases.
Which has better reviews, Flow or DocReader?
Flow and DocReader are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Flow or DocReader have ads?
Neither Flow nor DocReader shows ads.

Other comparisons