Language learning
Hear the language you are learning, at the pace you need
Reading in a new language and hearing it are two different skills, and reading silently only trains one of them. Local TTS reads the article, the chapter, or the phrase list aloud in the language it is written in and marks each word as it says it, so the spelling and the sound arrive together. All of it happens on the iPhone, which matters most exactly where you need it: abroad, with data switched off.
Updated Official app facts

How Local TTS helps
One voice, all 31 languages
Every Supertonic voice reads all 31 supported languages, so moving between your own language and the one you are learning does not mean changing voices, settings, or apps. Keep the same narrator and let the language change under it.
The highlight ties sound to spelling
Each word lights up as it is spoken. That is the part silent reading cannot give you — seeing which letters produced the sound you just heard. Slow the speed down and the highlight slows with it.
No roaming, no account, no quota
Speech is generated on the device, so a train in another country or a classroom with no Wi-Fi changes nothing. There is nothing to sign in to and no per-minute allowance to watch.
Keep reading
- 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.
- 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.
- Kokoro-82M Explained: Why Local TTS Uses It On-DeviceLearn 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.

Turn every screen into your personal narrator
Free to download. No ads, no account — 100% offline.
