Quick access and secure from young kids seems almost entirely mutually exclusive. There is one solution I know of that can likely handle both, but I don't think the 2 you posted qualify. I'd be very, very careful getting any of those options with kids in the house. The magnetic lock is not secure at all - all it takes, really, is any powerful enough magnet to unlock.
The only solution I've seen so far that handles both quick and secure access is something like The Gun Box with an RF ring/wristband or biometric fingerprint reader. thegunbox.com
Maybe there are other suggestions out there I haven't seen, though, so please post if so.