Whisper Caption is a free video utility application for mobile devices from developer Kevin Tang. It is a captioning tool that helps users create captions for videos, with styles to choose from based on the application. It utilizes AI to process audio and boasts offline functionality, so it does not require an active internet connection to function. 

Quick captions for your videos 

In a nutshell, the Whisper Caption provides you with an easy and quick way to generate captions or subtitles for your videos. The great thing about it is that everything is done offline and on-device, with support for over 90 languages and seven caption styles currently available, depending on the content of your clips. 

Once generated, you can adjust text size and placement, opt to take advantage of the auto emoji suggestions for greater impact or emphasis if needed. Do note that the free version will only output standard definition clips, have fewer caption choices, and add watermarks. The optional Pro version will address all these limitations if you want more. 

Handy for video posts 

If you share and post videos online frequently and are looking for a way to add captions to them for the benefit of your audience, the Whisper Caption is a must-try tool that can help you out. It supports different languages, offers multiple styles, and, more importantly, can be used completely offline. Check it out now and see for yourself.