Video Add Subtitle Pro for Android

Does not work correctly. Sometimes the first subtitle track gets added correctly, but not always. Second or third tracks do not get added.

I started off with the Lite version, then soon realized I needed the Pro version, which I bought on the Android App Store. For burning DVDs with subtitles, I have been using heavyweight (for me) apps like Wondershare Video Converter Ultimate, iSkysoft iMedia Converter, and MacX Video Converter Pro. These apps do a great job of permanently adding subtitles to a video, but they all take (literally) HOURS to complete! I am very disappointed that Video Add Subtitle Pro does not work. It is certainly fast, but the output is is awful. On the first try, the subtitles were so out if sync that I thought I had added the wrong SRT file for the conversion. I repeated the attempt, being very careful to choose the SRT which goes with the MP4. I got the same awful result. Next, I tried with a completely different MP4 and SRT, and again, the same staggeringly bad result. I must add that I have played these (and others) videos with SRT files of the same name in the same discreet ƒ with a perfect outcome.