So I will launch a challenge! I will sell 10 CryptoPlatz Vault with the seed recovery phrase of 1 Bitcoin, encrypted with CryptoPlatz App.
The first man that decrypt the seed recovery phrase can take 1 Bitcoin for him.
How would people know if their card came preloaded with seed words for 1 Bitcoin?The first man that decrypt the seed recovery phrase can take 1 Bitcoin for him.
I don't know if you are claiming that your encryption is impossible to crack, but consider sending this ten cards to known hackers and security experts, not to some random crypto normies.
How many crypto users have an offline pc just to work with the seed?
More than you think, and you can count in all signing devices like SeedSigner and air-gapped hardware wallets Passport, ColdCard, Keystone and others in that mix.It's not that hard to own old laptop with no direct internet connection, and it can have full disk encryption in addition to file encryption.
A lot of people now is using MetaMask, they need to save the seed recovery phrase offline, encrypted. They need CryptoPlatz Vault.
I wonder how did they survive for so long with one 
With your product people need to use smartphone and they are all connected to internet all the time, plus the cell tower connection.
I don't care really about shitty metamask wallet and how they are handling their supported centralized coins.