Discover the most popular reference apps on the iPhone App Store. Rankings are updated daily and include free apps, paid apps, and top-grossing apps in the reference category.
Last updated: 4/6/2026
Life.Church
Google
Book Vitals Inc.
Cornell University
Motivation Apps Free
Collectr
Next Vision Limited
Hallow, Inc.
Air Apps Systems
Simulation Curriculum Corp.
Rick Meyers
The Bear Essentials Co. LTD
Nynix
ASA
mydigitalearth.com
Cantcha, Inc.
Workman Consulting LLC
Terminal Eleven LLC
Ancestry.com
Vortemol Limited
E12 Holdings
