SubOnSite Card Read/Write
NFC Check-In Card Tools
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Free
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About
SubOnSite Card Read/Write is the companion app for paying SubOnSite customers. It lets you identify and program the NFC check-in cards used on your jobsites — right on iPhone. Sign in with your SubOnSite account. Same company login as the website. Field crews don’t need this app. They only tap a programmed card and check in through the browser.
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What's New in SubOnSite Card Read/Write
1.0.1
September 1, 2026
Cancel Write no longer marks a card ready. A real write still does. Identify and Program are otherwise the same.
