Fridolin is an SMP engine, meaning that it can do multi threaded parallel search. Although the function seems to work well, the engine still needs more progress to climb higher in rating lists.
Android is not different here. Fridolin is just above the average of the population even with four cores. I think Jim Ablett's new compile for arm7 may help Fridolin gain some more ELOs in Rapidroid. But let's wait and see whether the practice meets the theory!
Download Fridolin for arm7: HERE