Comparison

Text to Speech PDF Reader vs ClassKeep

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

Head to head
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

About

ClassKeep

Features
Read full description

All-in-one studio app: scheduling, clients, instructors, and payments. ClassKeep is studio management software built for class-based businesses—boutique fitness, yoga, pilates, spin, martial arts, pottery, dog training, and more. Run your schedule, clients, team, and revenue from your phone or tablet, with waitlists and student booking on autopilot. Whether you’re opening the studio, teaching between classes, or checking numbers at home, ClassKeep gives studio owners and admins the tools you need—without juggling spreadsheets, WhatsApp threads, and separate booking apps. SCHEDULING & CLASSES • Build and manage your class schedule—recurring sessions, instructors, and capacity • Assign rooms, equipment, and materials with conflict-aware resource allocation • Copy week and plan faster • Manage class types with defaults for duration, pricing, capacity, and public details • See what’s on today and what’s coming up CLIENTS & RETENTION • Searchable client directory with profiles, tags, and contact info • Credit packages, ledger history, and manual adjustments • Booking history, cancellations, refunds, and no-shows • Waivers, emergency contacts, and intake notes • Invite clients and track who has joined online WAITLIST ON AUTOPILOT • Fill cancelled spots automatically—no more 6 AM “can’t make it” chaos • Email the waitlist when a spot opens • Optional SMS and WhatsApp notifications when you connect your Twilio account PAYMENTS & REVENUE • Stripe Connect for real studio payments • Drop-ins, credit packages, and monthly or yearly subscriptions • Revenue dashboard, transaction ledger, pending checkouts, and payouts • Secure hosted checkout with webhook-based fulfillment INSTRUCTOR TEAM • Invite instructors by email • Profiles, availability, time off, compensation, and media • Instructor portal for attendance, walk-ins, and daily schedule—without full admin access STUDENT BOOKING ON YOUR BRAND • Branded public booking page for your studio • Students book classes, buy credits or packages, and manage their account • Page builder, theme, and SEO for your public studio page • English and Português (Brazil) built in NOTIFICATIONS • In-app inbox for admins and staff • Email and push included • Optional SMS and WhatsApp via Twilio add-on • Per-type, per-channel preferences STUDIO SETTINGS • Booking policies, opening hours, currency, and localization • Custom domain support • Optional add-ons: Twilio messaging, Google Analytics, Meta Pixel PERFECT FOR (USE CASES) • Reformer pilates — reformer capacity as rooms, popular-slot waitlists, memberships and drop-ins together • Yoga studios — recurring classes, multiple instructors, a booking page that matches your brand • Spin studios — bikes as resources, fast instructor check-in, packages and unlimited plans • Martial arts — attendance for progression, separate kids and adult programs, monthly billing • Pottery & craft workshops — session capacity, materials tracking, workshops and courses • Dog training — multi-week packages, parent contacts, waivers in client profiles • Any class-based studio that sells single classes, packs, or memberships Also great if you search for: studio management software, class scheduling software, fitness studio app, yoga studio software, pilates studio software, booking software for studios, waitlist software, studio CRM, instructor scheduling app, class booking platform. WHY STUDIO OWNERS CHOOSE CLASSKEEP • One app instead of five disconnected tools • Built for class-based studios—not generic appointment booking • Free during early access—no credit card required • Early adopters get a lifetime discount when paid plans launch • No surprise per-booking fees charged to your students GET STARTED Create your studio in minutes at classkeep.app. Sign in with the same account you use on the web—your dashboard, clients, and schedule stay in sync. Questions or help getting set up? support@classkeep.app

Screenshots

Text to Speech PDF Reader4 screens
ClassKeep4 screens

Verdict

The call

The clearest difference is in-app purchases: ClassKeep at none against Text to Speech PDF Reader's 10. ClassKeep also leads on iOS requirement (13.0 vs 16.0). On price, ads and device support 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. Text to Speech PDF Reader sells 10 in-app purchases, starting at $0.99 per 7 days. ClassKeep asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Text to Speech PDF Reader versus ClassKeep: the parameters behind the verdict, then further details
ParameterText to Speech PDF ReaderClassKeep
PriceFreeFree
Rating4.5 (561 ratings) — better—
Positive reviews45.8% of reviews—
Number of ratings561 — better—
Update frequencyEvery 10 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS16.013.0 — better
Further details — not scored
Size12 MB27 MB
Age rating4+4+
DeveloperBret LesterDavid Fortunato

Bugs and requests

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

ClassKeep

Not enough reviews yet to summarise bugs or requests.

In-app purchases

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
None

ClassKeep

No in-app purchases

Questions

Is Text to Speech PDF Reader free?
Text to Speech PDF Reader is free to download, with in-app purchases available.
Is ClassKeep free?
ClassKeep is free to download, with no in-app purchases.
Do Text to Speech PDF Reader or ClassKeep have ads?
Neither Text to Speech PDF Reader nor ClassKeep shows ads.

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