What is the best alternative to Card Manager: Digital Wallet on iPhone?

mobile-pocket loyalty cards, S tier, #1 in loyalty card wallet.

Is there a free alternative to Card Manager: Digital Wallet?

Yes: mobile-pocket loyalty cards (S tier, #1) is free, with no in-app purchases.

Yes. 3 apps rank above it in loyalty card wallet: mobile-pocket loyalty cards (#1), WinStamp - Loyalty Card (#2), Stamp Me (#3).

Card Manager: Digital Wallet is A tier, #4 of 7 in loyalty card wallet. Here is everything that competes with it on iPhone, in tier order.

1
mobile-pocket loyalty cardsShigher tier
Free · ★ 4.7 · 11,191 ratings · score 95
Stores loyalty and membership cards in one app, with barcode and QR-code support that works offline.
2
WinStamp - Loyalty CardShigher tier
Free · ★ 4.9 · 4,020 ratings · score 93
Stores loyalty card stamps from participating businesses in one app, using a personal QR code shown at checkout.
3
Stamp MeShigher tier
Free · ★ 5.0 · 2,480 ratings · score 91
Digital loyalty card app that stores stamp cards from participating businesses and tracks rewards on your phone.
5
Pass2U Wallet - Add store cardA
Free + IAP · ★ 4.2 · 2,896 ratings · score 83
Stores store cards, coupons, event tickets and boarding passes as digital passes in Apple Wallet, created by scanning.
6
Key Ring Rewards Card WalletB
Free · ★ 4.6 · 20,118 ratings · score 79
Stores loyalty, membership, and library cards digitally and lets you build and share shopping lists.
7
BJs Wholesale ClubB
Free · ★ 4.8 · 1,080,084 ratings · score 74
BJ's Wholesale Club app for members: coupons, gas prices, club details, pickup, delivery and membership access.

What is the best alternative to Card Manager: Digital Wallet on iPhone?: mobile-pocket loyalty cards, S tier, #1 in loyalty card wallet.
Is there a free alternative to Card Manager: Digital Wallet?: Yes: mobile-pocket loyalty cards (S tier, #1) is free, with no in-app purchases.
Does anything rank above Card Manager: Digital Wallet?: Yes. 3 apps rank above it in loyalty card wallet: mobile-pocket loyalty cards (#1), WinStamp - Loyalty Card (#2), Stamp Me (#3).