Local TTS - Voice Aloud Reader vs Speechify – Text to Speech PDF: Offline, Privacy, and Pricing

Local TTS - Voice Aloud Reader and Speechify – Text to Speech PDF are iPhone and iPad apps that read documents and text aloud. Both import PDFs and EPUBs, scan printed text, highlight text during playback, and adjust reading speed. Their main differences are platform coverage, data flow, additional tools, and pricing.

Short answer: Local TTS is the more focused choice when the complete TTS and camera-OCR workflow must run on supported Apple hardware. Speechify covers more platforms and adds cross-device sync, a much larger advertised voice catalog, and AI reading tools.

Scope and sources: This article compares Local TTS with the exact US App Store listing Speechify – Text to Speech PDF. Speechify Studio and the Speechify API are separate products and are not included. Features, prices, usage limits, and privacy disclosures were checked against Apple and official developer sources on August 10, 2026. The cover combines the official App Store icons of both apps.

Local TTS vs Speechify at a glance

This table records published capabilities. It does not rank voice quality or ease of use, which depend on the selected voice, source text, device, and listener.

What both apps can do

Both apps read PDF, EPUB, Word documents, and typed or pasted text. Each can recognize printed text from a camera or image, highlight text with playback, and change reading speed.

Those shared capabilities cover a basic read-aloud workflow. The differences become more important when you listen to long documents, move between devices, use AI study tools, or handle material that should not be uploaded to a service provider.

Where Local TTS differs

Local TTS runs text preparation, language detection, OCR, and speech synthesis on supported devices. Apple’s App Privacy label says the developer does not collect data from the app. Optional sync uses the user’s private iCloud; a Local TTS account or Rich Soft speech server is not required to generate audio.

Pro removes the 500-character limit for pasted and imported text. It also unlocks every included voice, full multi-page PDF import, and M4A export. The US App Store lists $4.99 monthly and a $19.99 one-time lifetime purchase. Because speech is generated on the device, there is no server-side voice-word allowance.

The tradeoff is hardware support. Local TTS requires iOS or iPadOS 18.6 and recent hardware: iPhone 12 or later, iPad 10th generation or later, iPad Air 4th generation or later, iPad mini 6th generation or later, or iPad Pro with M1 or later. It is not an Android app.

For a closer look at the private document workflow, see how to read PDFs aloud offline on iPhone.

Where Speechify differs

Speechify’s official iOS guide lists iOS and Android apps, native Mac and Windows apps, a web app, and Chrome and Edge extensions. Supported inputs include XLSX and web links in addition to PDF, EPUB, DOCX, TXT, and scanned pages. The service also lists Google Drive, Dropbox, and Microsoft OneDrive integrations, notes and bookmarks, AI summaries and chat, voice typing, and AI podcasts.

The official site currently advertises more than 1,000 voices in more than 60 languages. Available voices and tools can vary by plan, platform, and region. The US App Store app is free to download and offers in-app purchases.

Speechify is not cloud-only. Its December 2025 announcement says on-device iOS voices use local inference and work without an internet connection. Users can choose between on-device playback and cloud-based voices.

Offline use and privacy

Local TTS completes TTS and OCR on the device. Optional iCloud sync is available, but Rich Soft does not operate a document library or speech-conversion server for the app. Its App Store label is Data Not Collected.

Speechify’s on-device iOS voices also process speech locally. Speechify’s Privacy Policy, however, says User Content such as saved text and documents is stored locally and synced with its servers. Speechify’s App Store label says identifiers may be used to track users and that contact information, identifiers, usage data, and diagnostics may be handled for listed purposes. Apple notes that these developer disclosures are not verified and may vary by feature or age.

It would therefore be inaccurate to say Speechify cannot work offline. The narrower difference is that Local TTS designs the complete reading and OCR path around on-device processing, while Speechify combines on-device voices with server sync and cloud features.

Pricing and Premium Voice limits

These were the published US prices on August 10, 2026. App Store prices, taxes, trials, and promotions can differ by region and should be checked again before purchase.

Speechify’s official usage-limits schedule guarantees at least 150,000 Premium Voice words per month and lists a 2026 extension to a total of 1,000,000 words per month. The count applies to Premium, HD, and AI voices. Local TTS Pro generates speech on the device and does not use a server-side word allowance.

Documents, OCR, and study tools

Local TTS focuses on PDF, EPUB, DOCX, TXT, Markdown, pasted text, and camera or image OCR. It follows the native iOS listening flow with background playback, lock-screen controls, per-note voices, tags, and M4A export.

Speechify supports the shared formats plus XLSX and web links. Its broader service adds cloud storage connections, synchronized reading progress, notes, bookmarks, summaries, document chat, voice typing, and AI podcasts. Those tools extend beyond text-to-speech and explain part of the difference in product scope and subscription price.

Neither list proves that every document will import perfectly. Layout complexity, image quality, DRM, and source-file permissions can affect both apps. DRM-protected store books cannot be treated as ordinary EPUB files without authorization.

Which app fits your workflow?

Choose Local TTS if you…

• Mainly listen to PDFs, EPUBs, and documents on an iPhone or iPad.
• Need TTS and camera OCR to run on the device.
• Want to generate new speech without an internet connection.
• Listen to long documents without a monthly cloud-voice word allowance.
• Prefer a lifetime purchase option to a recurring subscription.

Choose Speechify if you…

• Move between iOS, Android, desktop, and the web with one library.
• Need a larger language and voice catalog, web links, or XLSX input.
• Use AI summaries and chat, voice typing, or AI podcasts.
• Prioritize cloud-storage integrations and cross-device progress.
• Need a TTS app on an iOS 17 device.

If you are also considering another cloud reader, the Local TTS vs NaturalReader comparison uses the same criteria. If you have already decided to leave and only need the switching details, see the offline Speechify alternative.

Frequently asked questions

Can Speechify read fully offline on an iPhone?

Speechify officially offers on-device iOS voices that use local inference and work without internet. It also says Premium users can download converted audio for offline listening. Cloud voices, syncing, and AI tools may still require a connection.

Do both apps read PDF and EPUB files?

Yes. Both list PDF, EPUB, DOCX, TXT, and image or scan input. Local TTS also supports Markdown; Speechify’s official list includes XLSX and web links.

Which app keeps the complete reading workflow on-device?

Local TTS runs TTS and camera OCR on supported Apple hardware. Speechify also has on-device iOS voices but combines them with server-synced User Content and cloud tools. Check the selected voice and sync settings before handling sensitive material.

Which app costs less?

Using published US prices, Local TTS Pro is $4.99 monthly or $19.99 lifetime, while Speechify Premium is $29 monthly or $139 yearly. The products include different feature sets, and regional prices and promotions can change.

Verdict

Local TTS and Speechify share the essential document-reading capabilities but have different product scopes. Local TTS focuses on on-device listening, a compact plan structure, and M4A export on supported Apple hardware. Speechify combines more platforms, voices, languages, cross-device sync, and AI tools in one service.

If on-device processing is the main requirement, test Local TTS Free with a real document. If cross-platform access and AI study tools matter more, compare Speechify’s free tier with the current Premium terms before subscribing.

Download Local TTS free from the App Store and test it with a document you already use.