Commuting & travel
A reader that keeps talking where the signal stops
Most read-aloud apps generate speech on a server, so the audio stops where the bars do. Local TTS generates it on your iPhone, which turns the subway tunnel, the flight, and the dead zone into ordinary listening conditions rather than interruptions.
Updated Official app facts
How Local TTS helps
Airplane mode is the normal case
After installation the voices are already on the device. Playback, highlighting, file import, and OCR all keep working with Wi-Fi and cellular switched off — only the optional iCloud sync waits for a connection.
Put the phone away and keep listening
Background playback and lock-screen controls mean a chapter carries on through a pocket, a bag, or a pair of headphones. Nothing needs the screen awake.
31 languages without switching apps
Every Supertonic voice reads all 31 supported languages, so a commute that mixes an English paper with an article in your own language stays in one app.
Keep reading
- Does Your TTS App Really Work in Airplane Mode?Ten 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.
- The Best Text-to-Speech Apps for iPhone in 2026: Offline, Free, and Paid ComparedCompare 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.
- Supertonic 3 Explained: 31 Languages in Local TTSSee 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.
Turn every screen into your personal narrator
Free to download. No ads, no account — 100% offline.