Andriol comes in an oral form which is not very readily absorbed. Normally steriods are methalyzed to survive the first pass of through the liver. Andriol is not, instead suspended in oil to be absorbed through the lymphatic as a fat. Unfortualtely it does'nt absorb well at all, making heavy daily doses required to see any gains.
If both were injectable then there would be little difference. Since one is not the difference is huge.
No point in taking both because whatever andriol gets absorbed will enter the bloodstream as the same hormone.