Kendis.io is described as 'Kendis is the Agile Scaling Platform. It offers specialized boards for the SAFe®, Spotify Model, Scrum of Scrums, LeSS or your custom scaling model' and is an app in the Business & Commerce category. There are more than 50 alternatives to Kendis.io for a variety of platforms, including Online / Web-based, Windows, Mac, Linux and SaaS. The best alternative is JIRA. It's not free, so if you're looking for a free alternative, you could try GoodDay or A1 Project Manager. Other great apps like Kendis.io are Pivotal Tracker (Paid), Kanban Tool (Paid), My Personal Kanban (Free) and Jira Clone (Free, Open Source).
Free: Open source with Apache license. No plans. No limits. You can install it in your own servers. Flexible: You have the complete source code in Java, based in OpenXava framework. So hiding features or adding new ones is extremely fast and easy.