With the Faucet extension to the Bitcoin and Altcoin Wallets WordPress plugin you can allow your users to claim small amounts of cryptocurrencies at regular intervals.

This can be a powerful incentive for users to keep revisiting your site. You, the site administrator, control the budget that you want to pay for this. You can also control the time interval between claims. If a user attempts to claim again before the time interval has elapsed, they will get an error message.

In version 1.2.0 of the Faucet extension, a timer is added to the front-end, so that users can know when they can claim again. The countdown timer is shown as part of the [wallets_faucet] shortcode.