Let's admit it wildcard certs are evil (unless you can convince me otherwise, highly doubtful). for the past few months I've been thinking of ways to set up my SharePoint 2013 apps environment without using wildcard certs. I already have apps working over http and also already have multiple web applications running on the same port 443. Due to architecture of apps I'm having a hard finding a solution, there's gotta be one. Thank you for your suggestions and answers; anything will head.
Managing multiple web application over SSL is not an easy talk for developers.
Wildcard SSL - It allows developer to manage and secure unlimited number of sub-domains or apps (if App domain is a sub-domain) with single certificate.
The other solution is Multi Domain SSL
Multi Domain SSL will allow developer to manage and secure multiple domains/apps over SSL with single certificate.