Comparison

Speech Central vs Text to Speech PDF Reader

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

Head to head
About

Speech Central

This app transforms text from various documents and web pages into speech, offering a distraction-free reading experience. It supports numerous file formats and provides customizable voices, including offline and AI options. Designed for productivity and accessibility, it syncs across Apple devices and offers study tools.

Highlights
  • Optimized PDF & Web Reading
  • Broad Document Support (PDF, EPUB, DOCX)
  • Offline and Cloud AI Voices
  • Cross-device Sync
  • CarPlay & Apple Watch Support
  • Accessibility Profiles
  • Annotation and Export Tools
Features
Read full description

Speech Central has been built for focused, serious reading since 2014. It works across PDFs, web articles, books, and documents. Designed for productivity and accessibility, it combines powerful controls, deep customization, and seamless integration across Apple devices. No subscription. A one-time upgrade unlocks unlimited use. Free access is available for blind users with VoiceOver and for schools deploying the app through Apple School Manager. READING WITHOUT DISTRACTIONS Optimized PDF & Web Reading • Accurate reading order and navigation • Optional cleanup to reduce distractions such as headers, footnotes, citations, and links • RSS support and easy sharing from Safari and other apps Broad Document Support • PDF (including scanned PDFs with two-column layout) • EPUB • Word (.docx) • PowerPoint (.pptx) • OpenOffice formats • HTML, TXT, RTF, Markdown, and more VOICES: OFFLINE AND CLOUD AI • Use high-quality Apple system voices offline • Supports compatible system-wide voices from third-party apps, including offline neural voices from Piper - Neural TTS and ToBe SAID (Pocket TTS) apps • Connect cloud AI voices (OpenAI-compatible APIs, Microsoft Azure, Google Cloud, xAI) using your own API keys • Proprietary enhancement layer improves realism and streaming playback • Optional AI summarization tools help you review content more efficiently BUILT FOR THE APPLE ECOSYSTEM • Sync reading position and playlists across iPhone, iPad, and Mac • CarPlay support for listening and control in your vehicle • Independent Apple Watch app — listen without your iPhone nearby • Optional Health integration to track mindful listening time ACCESSIBILITY FIRST • Dedicated profiles for ADHD, dyslexia, and low vision • Interface and reading behavior adapt for reduced distraction and improved comprehension • Fully accessible with VoiceOver STUDY & KNOWLEDGE TOOLS • Annotate while reading • Export annotated text to .docx • Export text to audio files for offline listening PRIVACY BY DESIGN • No ads • No tracking • No usage analytics WHO USES SPEECH CENTRAL • Students and researchers • Professionals converting reading into listening time • Users who rely on assistive reading tools • Anyone who prefers distraction-reduced, hands-free reading Notes: - Free version limited by the number of daily articles; unlimited access available with Pro upgrade. - Some features require the latest OS version. - License is valid only on iOS/watchOS; separate licenses required for other platforms. - DRM-protected books (e.g. Kindle) are incompatible. - AI features may occasionally perform unexpectedly.

About

Text to Speech PDF Reader

Listen to your PDF documents with a variety of high-quality voices and languages. The app highlights words as it reads, automatically scrolls pages, and remembers your reading progress. Save and access specific text sections as highlights.

Highlights
  • Listen to PDF documents
  • Multiple high-quality voices and languages
  • Word highlighting and automatic scrolling
  • Resume reading from last position
  • Save and access text highlights
  • Crop feature to skip content
  • Sync documents across devices
Features
Read full description

Read along to enhance comprehension or just kick back and listen to any PDF. * Dozens of high-quality voices in multiple languages to choose from with additional voices available to download on your device for free. * Choose a primary and secondary voice and switch between them easily as you read. * The app will highlight words as it reads and scroll the page automatically. * The app will remember where you left off and scroll to that position automatically next time you open a document. * Select any portion of text to save it as a highlight. * Tap any of your saved highlights and the app will open the pdf and scroll to the appropriate position. * Use the crop feature to skip repeated content that you don't want the app to read. * Support for dynamic type. * Support for Dark Mode. * Save as many pdfs as you want. * Optionally sync your documents with all of your iOS/iPadOS devices. If you enjoy the app please let us know through the in-app contact form and don't forget to rate us! Thank you for trying TTS PDF. --- "TTS PDF Yearly" is an annual auto-renewable subscription for $9.99. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You can turn off auto-renew up to 24 hours before your next subscription payment is due via your App Store settings page. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Terms of Use: https://bretlester.com/app_content/ttspdf_terms.html Privacy Policy: https://bretlester.com/app_content/ttspdf_privacy_policy.html

Screenshots

Speech Central4 screens
Text to Speech PDF Reader4 screens

Verdict

The call

The clearest difference is monetization model: Speech Central at free with in-app purchases against Text to Speech PDF Reader's subscription. Speech Central also leads on review sentiment (70% vs 44%). On price, rating, ratings volume and update cadence 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

Both are free to download. Speech Central sells 1 one-off in-app purchase and Text to Speech PDF Reader sells 10 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Speech Central against 4.5 for Text to Speech PDF Reader. Both are backed by a comparable volume of ratings — 1.6K and 552 respectively. Written reviews are what separate them: 70% of Speech Central's written reviews are positive against 44% of Text to Speech PDF Reader's.

UpkeepUpdate frequency

Speech Central ships an update weekly, Text to Speech PDF Reader every 10 days. The most recent releases landed on September 19, 2026 and September 23, 2026 respectively.

Scorecard2 real differences · 8 level
Speech Central versus Text to Speech PDF Reader: the parameters behind the verdict, then further details
ParameterSpeech CentralText to Speech PDF Reader
PriceFreeFree
Rating4.6 (1.6K ratings) — better4.5 (552 ratings)
Positive reviews69.6% of reviews — better44.0% of reviews
Number of ratings1.6K — better552
Update frequencyWeekly — betterEvery 10 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, Apple TV, Apple Watch — betteriPhone, iPad, Mac
Requires iOS17.016.0 — better
Further details — not scored
Size34 MB12 MB
Age rating4+4+
DeveloperLabsiiBret Lester

Customer experience

Speech Central

All ratings1,550 ratings
Positive90.4%
Neutral4.3%
Negative5.4%
Written reviews467 reviews
Positive69.6%
Neutral9.4%
Negative21.0%

Text to Speech PDF Reader

All ratings552 ratings
Positive86.1%
Neutral4.0%
Negative10.0%
Written reviews134 reviews
Positive44.0%
Neutral5.2%
Negative50.7%

User reviews

Speech Central

From 1.6K App Store ratings

What we love

  • 🚀 Life-saving app
  • 👍 Nice app
  • 👍 Great app
  • 👍 Affordable and full-featured
  • 👍 Excellent app for accessibility

Room to improve

  • 🐛 Not great
  • 🐛 Trash
  • 🐛 Robotic voices
  • 🐛 Terrible voices
  • 🐛 Buggy

Text to Speech PDF Reader

From 552 App Store ratings

What we love

  • 🚀 Simple and works
  • 🚀 Saving my life
  • 🚀 Fantastic app
  • 🚀 Awesome app
  • 🚀 Turns my PDFs to Audio Books

Room to improve

  • 🐛 Does not read alternate text
  • 🐛 Not reading clear anymore
  • 🐛 Rubbish
  • 🐛 Garbage
  • 🐛 Crashed every time I opened it

Bugs and requests

Speech Central

Reported bugs

6 issues
  • Crashes when changing advanced settings
  • Inconsistent behavior when importing documents
  • Fails to recognize some file formats
  • Playback issues with high-speed mode
  • Repeating chapters unexpectedly
Show 1 more
  • Scrolling issues with long documents

Requested features

8 requests
  • Add more natural-sounding voices
  • Improve chapter/section navigation
  • Allow custom pronunciation of words
  • Add support for more languages
  • Integrate with Bookshare library
Show 3 more
  • Improve PDF formatting and layout
  • Add more customization options
  • Improve sync between devices

Text to Speech PDF Reader

Reported bugs

8 issues
  • Skips paragraphs and double plays when pausing
  • Erased files without consent
  • Doesn't work with two-column text
  • Reads text backwards
  • Unable to copy/paste or open certain files
Show 3 more
  • Skips sentences and doesn't read column text in the correct order
  • Skips whole paragraphs
  • Glitches and gets stuck in a reading loop

Requested features

7 requests
  • Add ability to read alternate text (alttext) in PDFs
  • Improve voice quality and options
  • Add ability to organize files in folders
  • Add mobile-friendly version
  • Improve handling of scanned/column PDFs
Show 2 more
  • Add ability to skip headers/page numbers
  • Improve pronunciation of uncommon words

In-app purchases

1 purchases

Speech Central

One-time1
  • Speech Central Pro$9.99
10 purchases

Text to Speech PDF Reader

Subscriptions9
  • TTSPDF Unlimited Weekly7 Days trial$0.997 Days
  • TTS PDF Yearly7 Days trial$9.991 Year
  • Premium Weekly$9.997 Days
Show 6 more
  • Premium Weekly7 Days trial$9.997 Days
  • TTS PDF Basic7 Days trial$12.991 Year
  • Premium Monthly$29.991 Month
  • Premium Monthly7 Days trial$29.991 Month
  • Premium Annual$119.991 Year
  • Premium Annual7 Days trial$119.991 Year
One-time1
  • 1 Million Characters$39.99

Questions

Is Speech Central free?
Speech Central is free to download, with in-app purchases available.
Is Text to Speech PDF Reader free?
Text to Speech PDF Reader is free to download, with in-app purchases available.
Which has better reviews, Speech Central or Text to Speech PDF Reader?
Speech Central is rated higher. Speech Central averages 4.6 out of 5 from 1.6K ratings, while Text to Speech PDF Reader averages 4.5 from 552 ratings.
Do Speech Central or Text to Speech PDF Reader have ads?
Neither Speech Central nor Text to Speech PDF Reader shows ads.
Which is updated more often, Speech Central or Text to Speech PDF Reader?
Speech Central ships an update weekly, and Text to Speech PDF Reader every 10 days. Most recently, Speech Central was updated on September 19, 2026 and Text to Speech PDF Reader on September 23, 2026.

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