I have found iphone apps for for the SAS Manual by John "Lofty" Wiseman and The Ranger Handbook. I want to say that I paid $29.99 for the SAS Manual and $2.99 for the Ranger Handbook.

I have no affiliation with iphone, Apple, or anybody else concerned with the pubs that I have discussed here.
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QMC, USCG (Ret)
The best luck is what you make yourself!