VisualSubSync is described as 'Subtitle program aimed to facilitate subtitle synchronization by showing you the audio form and allowing the WORLD to see the subtitle timestamp breakdowns via a webpage and allowing them to submit corrections' and is a Subtitle Editor in the video & movies category. There are more than 25 alternatives to VisualSubSync for a variety of platforms, including Windows, Linux, Web-based, Mac and BSD apps. The best VisualSubSync alternative is Subtitle Edit, which is both free and Open Source. Other great apps like VisualSubSync are Aegisub, SubTypo, VidCap and Amara.
I had subs with good language but wrong timeline and a sub with good timeline but wrong language, SE "sync point" perfectly did the trick 20/20