WPForms Form Locker Addon 

The WPForms Form Locker addon allows you to lock your WordPress forms with various permissions and access control rules including passwords, members-only, specific date/time, max entry limit, and more.

Our form locker addon allows you to:

• Password Protect Forms – this requires users to enter a password to submit the form. This added protection helps decrease the number of unwanted form submissions.
• Close Form Submissions After Specific Date / Time – this is great for any kind of application form or other time-sensitive forms.
• Limit the number of total submissions – this is great for contests or giveaways. Once the max number of entries is in, the WPForms will automatically close the form.
• Limit one entry per person – if you want to avoid duplicate submissions, then you will love this option. This is very useful for scholarship applications, giveaways, etc.
• Restrict Forms to Members Only – you can restrict your forms to logged-in users of your WordPress site. This is great for membership sites or businesses that want to restrict support to paid customers only.

If you are looking for a WordPress form plugin that comes with permissions and access control, then WPForms is the best option for you!