App to create subtitles

Hi Guys
I was wondering if exist a FOSS app that help creating subtitles for videos.
Also, did anyone can recommend me or share a speech to text app to dowload without use google play store?

Thanks

Not sure we have one with speech-to-text besides https://f-droid.org/en/packages/ee.ioc.phon.android.speak/

Thank you.
Any app for subtitles, right?

If you want a app to read subtitles, you can use: SRT Speaker available on google play store.