natekinkead

This simple yet powerful plugin integrates with the bbPress forum plugin to add a new feature which allows users or visitors to vote up or down on topics and replies. Each topic and reply has a total score with an up arrow and a down arrow.
This plugin uses AJAX to save the vote on-the-fly without refreshing the page.
It’s also AMP compatible!
Visitors can only vote once on each topic or reply.
Features Included: 
* Show or hide (and customize) labels for up and down 
* Disable voting on topics or replies globally 
* Disable voting on specific forums 
* View-only score on closed topics 
* Sort topics and replies by voting scores 
* Admin bypass 
* GamiPress integration
Pro Features Available: 
* Historical weighted score visualization 
* Accepted answers 
* “Who voted” avatars 
* Sort dropdown 
* Sort on weighted score 
* Sort on trending score 
* Trending topics widget 
* Schema for Q&A rich snippets 
* Voting email notification to author 
* Mark topics or replies with poor scores as spam
Purchase bbPress Voting Pro at <a href="https://wpforthewin.com/product/bbpress-voting-pro/" rel="nofollow ugc">WP For The Win</a>!

bbPress Voting

I hope you enjoy this plugin!  If you have any questions, please post a topic in the for support forum.

Couldn't believe there was nothing out there like this!

Although I wish it had some options for placement. Not sure I like it above the author avatar.

Pretty cool

Let visitors vote up and down on bbPress topics and replies just like Reddit or Stack Overflow!

splittypayplugins

Step pay allows customers to pay their orders by installments, with 3 payments in 3 months. 
Customers will be redirected to the Splittypay platform to complete the payment: from the platform customers can: 
* Add their credit cards or bank accounts to pay 
* Pay by installments 
* Monitor the payment in real time
Merchants need to register to the Splittypay service to access the Step functionality as the plugin requires an API key to work properly. 
A merchant, to get an API key, needs to fulfill four simple steps: 
* Connect (or create from scratch) their Stripe account 
* Fill some basic information about the business 
* Upload a logo 
* Customize the cart duration on the Splittypay platform
The Step pay plugin can work both in sandbox and live mode. Merchants can switch between the environments from the settings panel 
(different API keys are required for the sandbox and live environments).

Step pay

This plugin allows customers to pay their orders by installments, with 3 payments in 3 months.

bbPress Voting vs Step pay