CitizenLab is described as 'civic engagement platform on which citizens co-create their city. The platform facilitates a two-way communication between the city and its citizens. Citizens post ideas, discuss them with each other and upvote the best ideas'. There are three alternatives to CitizenLab, not only websites but also apps for SaaS, iPad and iPhone. The best alternative is Universe by ideas4all Innovation. It's not free, so if you're looking for a free alternative, you could try IdeaScale.
IdeaScale is comprehensive innovation software that helps organizations identify great new ideas and bring them to life. SHARE & COLLABORATE Let your network share feedback and ideas from anywhere. You’ll find answers to questions you never even thought to ask.
Idea management software for smart organizations. Crowdicity is the easier way to harness the ideas and insights of your employees, partners, customers or anyone whose experience can help your organization do things better.