Comparison

Speech Central vs ZenBlur

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

ZenBlur

Features
Read full description

ZenBlur helps you hide sensitive information in screenshots, photos, and PDF pages in seconds. Blur private details before sharing with fast, simple tools designed for everyday use. ZenBlur is built for speed and keeps the entire editing workflow on your device. Use ZenBlur to quickly hide: • names • phone numbers • email addresses • chat messages • addresses • faces • text blocks • other sensitive areas Key features • Blur screenshots and photos • Blur PDF pages with page-by-page editing • Detect and blur faces instantly • Detect and blur visible text blocks • Freehand blur for irregular areas • Multiple blur styles (Gaussian, Pixelate, Crystallize) • Tap-to-blur with different shapes (Circle, Rounded Rectangle, Diamond) • Remove image metadata and location data before sharing • Export in JPEG, PNG, or HEIC formats • Fast export for sharing or saving • Simple editing workflow with undo and redo • No account required for core use ZenBlur is made for quick privacy cleanup when you need to share a screenshot, document, or image without exposing personal or sensitive details. All editing happens on your device. Your files are not uploaded for processing. Important ZenBlur is designed for fast visual hiding of content. PDF exports are flattened visual exports and are not intended for legal redaction. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Speech Central4 screens
ZenBlur3 screens

Verdict

The call

The clearest difference is device support: Speech Central at 4 against ZenBlur's 2. On price, ads, in-app purchases and iOS requirement 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 ZenBlur sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Speech Central versus ZenBlur: the parameters behind the verdict, then further details
ParameterSpeech CentralZenBlur
PriceFreeFree
Rating4.6 (1.6K ratings) — better—
Positive reviews69.3% of reviews—
Number of ratings1.6K — better—
Update frequencyEvery 9 days—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple TV, Apple Watch — betteriPhone, iPad
Requires iOS17.0 — better18.6
Further details — not scored
Size34 MB17 MB
Age rating4+4+
DeveloperLabsiiIvo Spassov

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

ZenBlur

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Speech Central

One-time1
  • Speech Central Pro$9.99
2 purchases

ZenBlur

Subscriptions1
  • ZenBlur Pro Monthly$0.991 Month
One-time1
  • ZenBlur Pro Lifetime$8.99

Questions

Is Speech Central free?
Speech Central is free to download, with in-app purchases available.
Is ZenBlur free?
ZenBlur is free to download, with in-app purchases available.
Do Speech Central or ZenBlur have ads?
Neither Speech Central nor ZenBlur shows ads.

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