Sorry, I simply haven&#x27;t been able to find them. However, the upshot was that in my FemCal app, loading several months of entered fertility cycles went from 100&#x27;s-1000&#x27;s of milliseconds to just a few 100&#x27;s.<p>The overall speedup when loading was about 50x, when using NSArchive versus sqlite3. Neither implementation was or has been optimized, though I did try to write the sqlite3 code as efficiently as possible, since it was clearly a source of slowness from day 1.