QReduce Lite provides more accurate KB & MB compression https//play.google.com/store/apps/details?id=com.mobso.photoreducer.lite
Operates in two modes Single & Batch
Compress Resize photo to any quality and size.
Reduce photo size in KB & MB (Kilobyte & Megabyte).
Resize Compress multiple photos at a time.
Reduce multiple photos in KB & MB.
Create and share Zip file of reduced photos.
* Photo aspect ratio file name is maintained.
* Input Formats JPEG PNG BMP. (All photos taken using camera are JPEG. So no worries.)
* Output Format JPEG PNG. (See App Settings)
** If application crashes or get stuck while resizing then deselect this option in settings - "Handle large images without sampling" **
Note The app developer is not affiliated or associated to Instagram Facebook Google+ WhatsApp Twitter Pinterest or any other social medias.
(*Photo size is reduced by reducing photo quality*)