ITERAS

ITERAS is a complete system for managing subscriptions for print and digital magazines. We automate as many of the hassles of billing as possible and offer you a choice of a wide range of billing methods.
If you publish a printed publication in Denmark and Norway you will likely need to be able to send “indbetalingskort”/”girokort” which we have fully automated. We also integrate with the Danish NemHandel (EAN). Therefore, Iteras is a one-stop solution for Danish and Norwegian magazines and others with similar needs (foreninger, software providers, etc.).
For more information, check out <a href="https://www.iteras.com/" rel="nofollow ugc">iteras.com</a>.
This plugin allows you to integrate the ordering and self-service parts of ITERAS easily, and set up a paywall in WordPress to only allow access to certain posts to your ITERAS subscribers.
The plugin uses the ITERAS Javascript API, allowing further customizations for those who need it.

Integration with ITERAS, a cloud-based state-of-the-art system for managing subscriptions and payments for magazines.

viperchill

ViperBar adds an attractive bar to your site header, which you can use to increase blog or newsletter subscribers. It includes built in styling, Aweber & Feedburner integration, conversion rate tracking, split-testing, themes, and much more.
<a href="http://www.viperchill.com/" rel="nofollow ugc">ViperChill</a>, a blog on Viral Marketing, is the creator of this plugin. If you want to take your blog to the next level, you should read this post on <a href="http://www.viperchill.com/wordpress-seo/" rel="nofollow ugc">WordPress SEO</a>.
<h3>Donations</h3>
You may make donations at http://www.viperchill.com

ViperBar

ViperBar adds an attractive bar to your site header, which you can use to increase blog or newsletter subscribers.

ITERAS vs ViperBar