Text to Speech PDF Reader vs Sile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Sile
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Sile — Your mind, encrypted. A private, AI-powered second brain where your thoughts stay yours. Every note is encrypted with AES-256-GCM before it touches disk. No cloud. No accounts. No telemetry on your content. Ever. ENCRYPTED NOTES Write freely with a rich Markdown editor — bold, italic, headings, lists, checklists, and code blocks. Everything is encrypted at rest with military-grade AES-256-GCM encryption. Your notes never exist as plaintext on disk. VOICE TRANSCRIPTION Record voice notes and get instant on-device transcription. Perfect for capturing ideas on the go, meeting notes, or brainstorming sessions. All processing happens on your device — nothing is sent to any server. DOCUMENT SCANNER Scan documents with your camera. Automatic edge detection, perspective correction, and on-device OCR extract text from any document. Multi-page scanning support for longer documents. AI INTELLIGENCE — 100% ON-DEVICE Summarize notes, extract actionable tasks, auto-suggest tags, and chat with your notes — all powered by on-device AI. Zero network calls. Your content never leaves your phone. CONTRACT ANALYZER Analyze legal documents and contracts for key terms, obligations, and potential red flags. Get clear, structured breakdowns of complex legal language — all privately on your device. HEALTH JOURNAL Track your mood, symptoms, sleep, energy, and medications. View patterns over time with a beautiful calendar view. AI-powered insights help you discover correlations in your health data. VAULT Store sensitive files, images, and documents in an encrypted vault with dual-layer security — biometric plus PIN protection. ORGANIZE YOUR WAY Folders, tags, pin, archive, favorites, and full-text search across all your encrypted notes. BIOMETRIC LOCK Protect your notes with Face ID, Touch ID, or a secure PIN. Your privacy is non-negotiable. BEAUTIFUL DESIGN Warm, intimate design inspired by a leather notebook in a private library. Dark and light themes included. PRIVACY FIRST • AES-256-GCM encryption at rest • No cloud sync — everything stays on device • No accounts required • No telemetry on your content • On-device AI — zero network calls • Open and transparent The name Sile comes from the Latin imperative silēre: "Be silent." Your thoughts deserve silence from surveillance. Sile Premium unlocks unlimited voice transcription, unlimited AI operations, advanced health insights, and the contract analyzer. Available as monthly, annual, or lifetime purchase.
Screenshots
Verdict
The clearest difference is price: Text to Speech PDF Reader at Free against Sile's $2.99. Text to Speech PDF Reader also leads on update cadence (every 10 days vs every 6 weeks). Sile's advantage is in-app purchases (none vs 10). On ads, device support 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
Text to Speech PDF Reader is free to download; Sile costs $2.99 up front. Text to Speech PDF Reader sells 10 in-app purchases, starting at $0.99 per 7 days. Sile asks for nothing beyond the download.
Text to Speech PDF Reader ships an update every 10 days, Sile every 6 weeks. The most recent releases landed on October 20, 2026 and October 13, 2026 respectively.
| Parameter | Text to Speech PDF Reader | Sile |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.5 (559 ratings) — better | — |
| Positive reviews | 45.8% of reviews | — |
| Number of ratings | 559 — better | — |
| Update frequency | Every 10 days — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 12 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Bret Lester | Alejandro Cordon |
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
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- 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
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- Add ability to skip headers/page numbers
- Improve pronunciation of uncommon words
Sile
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Text to Speech PDF Reader
- TTSPDF Unlimited Weekly7 Days trial$0.997 Days
- TTS PDF Yearly7 Days trial$9.991 Year
- Premium Weekly$9.997 Days
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- 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
- 1 Million Characters$39.99
Sile
No in-app purchases
Questions
Is Text to Speech PDF Reader free?
Is Sile free?
Do Text to Speech PDF Reader or Sile have ads?
Which is updated more often, Text to Speech PDF Reader or Sile?
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