VT PDF Voice Reader vs Zenvor

This free-of-charge PDF reader with text-to-speech is created by team VelaTango. It comes in handy when you want to listen to a book while taking a walk or working in garden. The voice reading runs completely offline. The AI summary of PDF text and continual discussions with AI can help you better understand the content as well as getting a good picture of books and articles that you do not have time to read in detail. Privacy is fully protected with this app. PDF reading and text-to-speech are completely local and runs offline. The AI summary part requires internet connection. It sends selected PDF text directly to Google Gemini using your own API key. This app does not collect any user data. No email account needed. No login required. Please refer to instructions for details including how to download voices required by this app and how to apply for free Gemini API key if you are interested. Some notes on features: In principle, any PDF files can be loaded into this app. You can read by viewing. But when it comes to listening with text-to-speech (TTS), there are some limitations that you want to be aware of: 1) TTS part now works for PDFs with two-column text. Some text with math equations still face some challenges in separating two columns properly. 2) Voices are limited to 4 for English and 4 for Chinese to avoid the overwhelmingly long list. If you like the app and would like to add voices of other languages, please specify which language, name of the voice (like Ana), and whether the voice is enhanced or premium. Your PDF and Gemini API key files (a txt file with only the key information) are good to be kept in the same place like in the Files folder on your device. The buttons or icons on the control panel are quite intuitive. The reset icon returns voice reading back to the top of the page. When voice selection and speed selection are changed, new selection starts on the same line. I have enjoyed using this app and I wish the same for you.

Turn your reading backlog into your own private radio. Share an article, paste text, or import a PDF — Zenvor starts speaking in a natural AI voice within seconds, generated entirely on your device. No account. No cloud. Free core listening, forever. Scan paper with the camera — a single page or an entire book — or open a scanned PDF, and Zenvor recognizes the text on your device and reads it aloud. Scanning is free, with no page limits, and nothing leaves your device. WHY ZENVOR IS DIFFERENT Mainstream reading apps synthesize speech on servers, so they meter your hours, require accounts, and charge accordingly. Zenvor's neural voices run on your iPhone's own chips: - Unlimited listening — no hourly caps, no word credits - Works fully offline, even in airplane mode — after a one-time online setup on first launch - No analytics, no ads, no tracking — the App Privacy label reads "Data Not Collected" - Nothing to sign up for, nothing to cancel LISTEN TO ANYTHING - Articles and web pages you choose to fetch - Newsletters and RSS feeds - PDF and EPUB documents - Pasted notes, drafts, and study material BUILT FOR REAL LISTENING - Natural neural voices in English, Spanish, French, Italian, Portuguese, Hindi, Chinese, and Japanese - More than 50 neural voices ship inside the app — American and British casts, male and female, warm to newsreader-plain - Word-by-word read-along highlighting - A gapless queue that plays your backlog like a podcast - A sleep timer that stops after a set time, at the end of the item, or at the end of the chapter - 0.5×–4× speed with per-item speed memory - Background audio with full lock screen and AirPods controls - Bookmarks, clips, and listening history - Export a listening item as an audio file to save or share — the voiceover is rendered on your device (unlimited with Zenvor Pro) - Siri and Shortcuts: "Play my queue in Zenvor" LEARN WHILE YOU LISTEN - Chinese read-along with pinyin and tap-to-define glosses - On-device AI summaries — hear the key points first (Zenvor Pro, on devices with Apple Intelligence) - Define or simplify any word without leaving the reader (Zenvor Pro, on devices with Apple Intelligence) PRIVACY, BY ARCHITECTURE The network is used only when you explicitly ask Zenvor to fetch a link or feed. Speech, summaries, stats, and history are created and stored on your device — never uploaded, never analyzed, never sold. ZENVOR PRO (optional) Core listening is free forever, and every language above includes a free native voice. Pro unlocks the full voice cast, unlimited offline downloads, full listening-stats history, deeper synthesis look-ahead, and the on-device AI tools: key-point summaries, Ask about this, Define and Simplify. Pro is also sold as a one-time purchase — buy it once, keep it, no subscription required. Clear prices, no forced trial, cancel anytime. Made for iPhone, iPad, and Apple Silicon Macs by an independent developer in Los Angeles. Terms of Use (EULA): https://novarynix.com/Zenvor/terms/ Privacy Policy: https://novarynix.com/Zenvor/privacy/