Buy Androvid Pro, it is ad-free and provides more features:
- Rotate / Flip your videos
- Merge your videos
- More audio format is supported (M4A, WAV, WMA, ASF, FLAC)
- Change the size of the video for smaller disk space
- Convert to other video formats (AVI, FLV, MP4, MPG, MOV, VOB)
- More video effects
- It is ad-free