Side by side
Spark-TTS vs Yappy
Both stand on text-to-speech tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxSelf-hostedWeb+1
Spark-TTS provides free self-hosted inference with bilingual synthesis and voice controls. It is aimed at non-commercial uses and requires careful attention to its cloning restrictions and pending training materials.
Visit Spark-TTS Free plan AndroidExtensioniPhone+4
Choose Yappy for on-device, offline text-to-speech across many types of content and 31 languages. Look elsewhere if you need Android immediately or want audiobook creation and the computer bridge without paying; those are excluded from the free plan.
Visit YappyThe facts
| Spark-TTS | Yappy | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Self-hosted, Web, Windows | Android, Extension, iPhone, Linux, Mac, Web, Windows |
| Lowest paid plan | Free or on request | Yappy Parlanchín: €2,999 a year |
| Plans published | 1 | 4 |
| Maker | Not published | Not published |
| Website | sparkaudio.github.io | github.com |
| On text-to-speech tools | #57 of 232 | #61 of 232 |
Spark-TTS: what it does well
- Free Apache-2.0 inference code
- Supports Chinese and English
- Offers cross-lingual voice cloning
- Controls pitch and speaking rate
- Provides a local web interface
What to know first
- Commercial use is unavailable
- Model download is required
- Training code is still pending
- Unauthorized cloning is prohibited
Yappy: what it does well
- Reads articles, PDFs, EPUBs, Word files, videos and voice notes aloud.
- Supports 31 languages and ten polyglot voices.
- Works offline after installation using on-device speech processing.
- Published under the MIT license.
- Desktop versions include OCR and audiobook export.
What to know first
- The free mobile queue is limited to three documents at a time.
- Audiobook creation and the computer bridge require the paid plan.
- Android is not yet published.
- There is no free trial.
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