The seven engines
| Engine | Download size (approx.) | Languages | Korean | Free use |
|---|---|---|---|---|
| Supertonic v3 | 398 MB | 31 | Yes | 10 chapters a month |
| Kokoro | 121 MB | 8, with 54 voices | No | 10 chapters a month |
| Kokoro Deutsch (experimental) | 115 MB | German, 1 voice | No | 10 chapters a month |
| Kitten | 43–77 MB (4 models) | English | No | Unlimited |
| Qwen3-TTS | 1.97 GB | 10 | Yes | 10 chapters a month |
| MOSS | 763 MB | 13 | Yes | 10 chapters a month |
| Apple system voices | No in-app download | The languages iOS provides | Yes | Unlimited |
Sizes are the estimates PageEcho shows before a download; the space a model takes on the device can differ slightly. The table reflects the engine list in PageEcho 1.5.7, checked on November 14, 2026. The free allowance refills on the 1st of every month, and in a PDF each page counts as one chapter. PageEcho Premium removes the limit on every engine.
Languages by engine
- Supertonic v3 (31): English, Korean, Japanese, Arabic, Bulgarian, Czech, Danish, German, Greek, Spanish, Estonian, Finnish, French, Hindi, Croatian, Hungarian, Indonesian, Italian, Lithuanian, Latvian, Dutch, Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Swedish, Turkish, Ukrainian, Vietnamese
- Kokoro (8): English, Japanese, Chinese, Spanish, French, Italian, Portuguese, Hindi
- Kokoro Deutsch: German
- Kitten: English
- Qwen3-TTS (10): English, Korean, Japanese, Chinese, German, French, Spanish, Russian, Portuguese, Italian
- MOSS (13): English, Korean, Japanese, Chinese, Spanish, French, German, Italian, Portuguese, Russian, Arabic, Polish, Turkish
Which engine to pick
- For English text, every engine except Kokoro Deutsch works; Kitten and Apple are free with no limit.
- For German text, Kokoro Deutsch is a German-only voice added in 1.5.6 and still marked experimental. Supertonic, Qwen3, MOSS and Apple voices also read German.
- To save storage, use Apple voices (no in-app download) or Kitten, the smallest downloadable engine at about 43 MB.
- For languages beyond English, check the list above: Supertonic covers the most languages (31), followed by MOSS (13) and Qwen3 (10).
How listening offline works
All seven engines generate speech on the iPhone. You need internet only to download a voice model the first time; after that, listening works in airplane mode. The text you listen to is never sent to a PageEcho server, because PageEcho has none.
Questions
Does it work without internet?
Yes. Once a voice model is downloaded, speech is generated on the iPhone with no connection.
Which voices are free?
Apple and Kitten voices are free with no limit. Supertonic, Kokoro, Kokoro Deutsch, Qwen3 and MOSS are free for 10 chapters per engine each month, and PageEcho Premium removes the limit.
Which engine is the smallest?
Apple system voices need no download inside the app. Among downloadable engines, Kitten is the smallest, starting at about 43 MB.
Which engine supports the most languages?
Supertonic v3, with 31 languages. MOSS supports 13, Qwen3-TTS 10 and Kokoro 8; Kitten is English only and Kokoro Deutsch is German only.