rheinardkorf

Invitations for Slack lets you use convenient shortcodes to show “Join us on Slack.” buttons or Slack badges. Just add 
your Slack token and use the shortcodes wherever you want your visitors to be able to invite themselves from.
<h3>Features:</h3>
<ul>
<li>Easy to use:
<ul>
<li>Visit <a href="https://api.slack.com/web" rel="nofollow ugc">https://api.slack.com/web</a> to generate your Slack token.</li>
<li>Add the token to the plugin settings.</li>
<li>Use the [invitations_for_slack] or [invitations_for_slack_badge] shortcodes.</li>
</ul>
</li>
<li>Invitations are performed using the WP REST API which in turn communicates with the Slack API. No page reloads.</li>
</ul>
<h3>Requirements:</h3>
<ul>
<li>A Slack team and the team’s access token.</li>
<li>A self-hosted WordPress website (Not a WordPress.com website.)</li>
</ul>

Invitations for Slack

Plugin doesn't work unfortunately.

Have raised several issues in the support forum and still no response after months.

Doesn't work

Build a Slack community by allowing your visitors (or registered users) to invite themselves to your Slack team.

commonknowledgecoop

A form for users to sign up to a paid membership for your organisation, 
implemented as a WordPress block.
Features:
<ol>
<li>Custom theme and custom CSS</li>
<li>Fully customizable membership tiers</li>
<li>Three payment providers:
<ol>
<li>Stripe</li>
<li>GoCardless</li>
<li>ChargeBee</li>
</ol>
</li>
<li>Optional membership integrations:
<ol>
<li>Auth0</li>
<li>Mailchimp</li>
<li>Action Network</li>
</ol>
</li>
</ol>
<h3>ChargeBee setup</h3>
To use ChargeBee, you must configure the payment plan names in the Join Flow settings 
to match the price IDs in the ChargeBee back-end.
Currently, this requires logging in to the ChargeBee dashboard, creating a 
subscription, and setting a price for the desired currency. The price details 
for the selected currency will have an ID. Copy and paste this ID into the 
name of the membership plan in the Join Flow backend.
To support an additional donation in ChargeBee, create two more products: 
– an addon called “Additional Donation”, with a price in the desired 
 currency called “additional_donation_monthly”. 
– a charge called “Additional Donation”, with a price in the desired 
 currency called “additional_donation_single”.
<h3>External Services</h3>
The following is a list of all the external services used by the plugin. 
Each service is marked as optional or required.
<ul>
<li>
getAddress() 
Domain: <a href="https://getaddress.io" rel="nofollow ugc">getaddress.io</a> 
Used for: converting a UK postcode to a full address. 
Data received: the postcode provided by the user.
</li>
<li>
Ideal Postcodes 
Domain: <a href="https://ideal-postcodes.co.uk/" rel="nofollow ugc">ideal-postcodes.co.uk</a> 
Used for: converting a UK postcode to a full address. 
Data received: the postcode provided by the user.
</li>
<li>
postcodes.io 
Domain: <a href="https://postcodes.io" rel="nofollow ugc">postcodes.io</a> 
Used for: fetching useful data about a postcode that is then sent to your organisation’s membership list. 
Data received: the postcode provided by the user.
</li>
<li>
ChargeBee 
Domain: <a href="https://www.chargebee.com/" rel="nofollow ugc">chargebee.com</a> 
Used for: managing user payments and subscriptions. 
Data received: user payment information, i.e. credit/debit card details or bank account details.
</li>
<li>
Stripe 
Domain: <a href="https://stripe.com/" rel="nofollow ugc">stripe.com</a> 
Used for: managing user payments and subscriptions. 
Data received: user payment information, i.e. credit/debit card details or bank account details.
</li>
<li>
GoCardless 
Domain: <a href="https://gocardless.com/" rel="nofollow ugc">gocardless.com</a> 
Used for: managing user direct debit subscriptions. 
Data received: user bank account details.
</li>
<li>
Action Network 
Domain: <a href="https://actionnetwork.org/" rel="nofollow ugc">actionnetwork.org</a> 
Used for: storing user membership details. 
Data received: all data provided by the user.
</li>
<li>
Mailchimp 
Domain: <a href="https://mailchimp.com/" rel="nofollow ugc">mailchimp.com</a> 
Used for: storing user membership details. 
Data received: all data provided by the user.
</li>
<li>
Auth0 
Domain: <a href="https://auth0.com/" rel="nofollow ugc">auth0.com</a> 
Used for: giving users the ability to modify their data. 
Data received: the user’s name, email, password and payment subscription ID.
</li>
<li>
Zetkin 
Domain: <a href="https://zetkin.org/" rel="nofollow ugc">zetkin.org</a> 
Used for: storing user membership details. 
Data received: all data provided by the user.
</li>
</ul>
<h3>Contact Us</h3>
Need help? Contact us at <a href="mailto:hello@commonknowledge.coop" rel="nofollow ugc">hello@commonknowledge.coop</a>.

Common Knowledge Join Flow

A form for users to sign up to a paid membership for your organisation, implemented as a WordPress block.

Invitations for Slack vs Common Knowledge Join Flow