Need Android equivalent of guided access

Generally speaking, Guided Access allows the tablet to be in Kiosk mode, whereby the top/bottom navigation bars and hardware buttons can be disabled, leaving only foreground app running.

iOS designed this as an accessibility feature such that autistic children can stay on task; however, retail environments can use the feature to prevent customers from wandering away from intended shopping tools.

SureLock and SureFox are nice but too expensive. Are there any quality kiosk ROM or apps that can be had for cheap?

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