Apps similar to PassVault include FossWallet, which is free and open source. Other options are Google Wallet, Apple Wallet and Pass2U Wallet. In total there are four Payment Processing Services like PassVault for Android, iPhone, iPad and the web.
FossWallet is a free and open source (foss) .pkpass application. Inspired by the venerable PassAndroid-App, I tried to recreate the necessary functionality in Material Design 3 and with modern technologies.
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Google Wallet is a digital service by Google for managing transactions. It allows users to pay at Google Pay accepted locations, store digital boarding passes, movie tickets, and more on their smartphones. It also offers a secure location for essential items.
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Use Apple Wallet to keep your boarding passes, movie tickets, coupons, loyalty cards, and make payments with your credit card.
Pass2U Wallet can conveniently collect all of your Passbook / Apple Wallet passes in your Android devices, e.g. coupons, event tickets, loyalty cards, stored-value cards, and boarding passes. You can scan barcode containing web link or download .
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