Comparison

Speech Central vs CRTX

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

CRTX

This app acts as a shared digital memory for your household, allowing you to save voice notes, photos, links, and documents. You can then ask questions in plain English to retrieve information saved by anyone in your group.

Highlights
  • Capture voice notes, photos, links, and PDFs
  • Search contents using natural language
  • Create private or shared memory pools
  • Assign and track tasks within shared pools
  • Automatic recognition of people in saved items
  • Apple Watch and share extension support
Features
Read full description

Your family's memory, one question away. CRTX is the memory you share with the people you live with. Save voice notes, photos, links, PDFs, and audio files. Then ask a question in plain English and get the answer back across everything anyone in your pool has saved. WHAT YOU CAN DO • Capture anything. Type a thought, paste a link, hold to record a voice note, drop a PDF, snap a photo of a flyer or receipt. CRTX reads what's inside, so you can search the contents — not just the filename. • Ask anything. "What did the doctor say?" "Where's the school calendar?" "What did Sarah send about Friday?" CRTX finds it in seconds and shows you the source. • Pool with the people you share a life with. Your personal pool stays private. Shared pools are for the people you're in this with — partner, kids, siblings, your closest friends. • Tasks, on their own or tied to something you saved. Assignable in shared pools. Recurring. Reminders before, at, and after the deadline. • People show up automatically. CRTX recognizes names in what you save and ties items to the right person. Your People tab becomes a living memory of who said what, organized around the people in your life. • Apple Watch + share extension. Record voice notes from your wrist. Save anything from any iPhone app with the share button. WHO IT'S FOR Built first for families. Couples managing the everyday — kids, school, the dentist, the babysitter, the grocery list that lives in three places at once. Parents who keep losing the things their kids told them. Households tired of the same conversation: "I know we wrote that down somewhere." Just as good for any group that shares a life or a project. Friend groups planning a trip across a hundred photos and links. Founders catching customer feedback fragments. Roommates juggling bills and repairs. Or just you on your own — your personal pool is yours alone. CORA Cora is your help assistant inside CRTX. Ask her how a feature works, where to find a setting, or what an option does. She knows the app inside and out — so you don't have to. SUBSCRIPTION Choose Personal for just yourself, or Family for up to 6 people. Both start with a 7-day free trial. Cancel anytime in Settings ▸ Subscription ▸ Manage Subscription inside the app. Either plan includes unlimited capture, AI question-answering, shared pools, Apple Watch, and the share extension. LANGUAGES English, German, French. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://crtx.live/privacy

Screenshots

Speech Central4 screens
CRTX4 screens

Verdict

The call

The clearest difference is rating: CRTX at 5.0 against Speech Central's 4.6. Speech Central's advantage is ratings volume (1.6K vs 1) and device support (4 vs 2). On price, ads, in-app purchases and monetization model 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 CRTX sells 4 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

CRTX holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Speech Central has 1.6K ratings behind it against 1, so its average is the more settled of the two.

Scorecard4 real differences · 6 level
Speech Central versus CRTX: the parameters behind the verdict, then further details
ParameterSpeech CentralCRTX
PriceFreeFree
Rating4.6 (1.6K ratings)5.0 (1 ratings) — better
Positive reviews69.4% of reviews—
Number of ratings1.6K — better1
Update frequencyWeekly—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple TV, Apple Watch — betteriPhone, Apple Watch
Requires iOS17.0 — better26.0
Further details — not scored
Size34 MB24 MB
Age rating4+4+
DeveloperLabsiiLars Janssen

Customer experience

Speech Central

All ratings1,552 ratings
Positive90.3%
Neutral4.3%
Negative5.4%
Written reviews468 reviews
Positive69.4%
Neutral9.4%
Negative21.2%

CRTX

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

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

CRTX

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Speech Central

One-time1
  • Speech Central Pro$9.99
4 purchases

CRTX

Subscriptions4
  • CRTX Personal Monthly7 Days trial$7.991 Month
  • CRTX Family Monthly7 Days trial$12.991 Month
  • CRTX Personal Annual7 Days trial$69.991 Year
Show 1 more
  • CRTX Family Annual7 Days trial$119.991 Year

Questions

Is Speech Central free?
Speech Central is free to download, with in-app purchases available.
Is CRTX free?
CRTX is free to download, with in-app purchases available.
Which has better reviews, Speech Central or CRTX?
CRTX is rated higher. Speech Central averages 4.6 out of 5 from 1.6K ratings, while CRTX averages 5.0 from 1 ratings.
Do Speech Central or CRTX have ads?
Neither Speech Central nor CRTX shows ads.

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