Best indie Reference apps for iPhone (2026)
4 reference apps for iPhone, every one of them from an independent developer or a small team. Dictionaries, converters and look-it-up apps built with care by independent developers.
Ordered by store rating, refreshed as new listings arrive. Nothing here is a paid placement — the only thing this site sells is the Featured slot on the home page, and it never touches this ranking.
iOSAndroidKnot IQ: 3D Knot Tying
Not sure which knot you need?
iOSAndroidAudubon Bird Guide
The Audubon Bird Guide is a free and complete field guide to over 800 species of
iOSAndroidKnots Tying Guide: KnotSmith
3D animated knots for climbing, sailing, fishing, camping, rescue, offline
iOSAndroid2EuroCoin
Catalog and checklist for commemorative €2 coin collectors
Keep looking
Other iPhone lists and the same apps on the other store.
Built an indie reference app for iPhone? List it free and it appears on this page. Updated for 2026.