If a text-to-speech app makes its voices on a server, your text is uploaded — that is the mechanism, not a scandal. What eleven iPhone TTS apps say about where your words end up, in their own labels, policies, and terms.
ComparisonTen iPhone text-to-speech options say they work offline — but "offline" means three different things. What each one officially claims about airplane mode, in its own words.
GuideMost apps tell you they read PDFs aloud. Almost none show you what playback looks like. Here is the unedited clip, frame by frame: two highlight layers, a page that turns itself, and no network.
AIOfficial benchmarks show each model wins a different race. See the numbers behind Local TTS and why the app pairs Kokoro-82M with Supertonic 3 on-device.
ComparisonWhich apps actually ship Supertonic 3? Local TTS, PageEcho, and TLDRL compared on languages, what they read, offline behavior, requirements, and price.
ComparisonCompare the best Kokoro TTS apps for iPhone in 2026. See how Local TTS, On-Device AI, and Koro Voices handle offline voices, documents, photographed pages, and price.
GuideUse text-to-speech for students on iPhone to listen to textbooks, PDFs, Word files, and printed notes with highlighting and offline playback.
ComparisonCompare the best text-to-speech apps for iPhone in 2026. See how Local TTS, Speechify, NaturalReader, and the built-in Speak Screen differ in offline support, privacy, free plans, and price.
ComparisonCompare Local TTS - Voice Aloud Reader and Speechify – Text to Speech PDF using current official information about offline voices, privacy, documents, platforms, free plans, and pricing.
GuideLearn how to have your iPhone read a PDF aloud without internet. Keep documents on-device and continue listening from the Lock Screen.
ComparisonCompare Local TTS - Voice Aloud Reader and NaturalReader - Text To Speech using official information about offline speech, pricing, privacy, voices, documents, OCR, and audio export.
AISee how Supertonic 3 lets Local TTS read 31 languages with one private, offline voice engine on iPhone and iPad—no cloud or language packs required.
AILearn what makes Kokoro-82M fast and natural, where its limits are, and how Local TTS uses it for private, offline English speech on iPhone and iPad.
