I’m using one of the models here . It’s working for voice instructions for navigation in Organic Maps. It’s also showing in the text to speech menu in the android settings.

The app it’s based on (SherpaTTS) already exists on fdroid repos, but the APKs on that link has the model embedded already.

That’s interesting, I’m using it since android 4 days, don’t remember a single crash. If that’s the only case it crashes, I would open an issue and use it in the meanwhile. Check the permissions maybe?

Binaryeye supports both decoding and encoding via Share menu. So you can share an image from any app to decode(can also be a photo that has a qr code somewhere). It also supports sharing a text or link to generate one. It also has searchable history support.