If I were a hiring manager (I used to be one, but no longer am), seeing multiple skills would indicate:<p>- An ability to learn new things, which is probably more important than any particular skill.<p>- Knowledge that&#x27;s not limited to a specific, narrow area. For example, someone who has spent their entire life doing nothing but coding mobile apps in iOS would probably have less ability to deal with issues that interact with the server side of the software stack.<p>So I&#x27;d recommend listing all the skills you have significant experience in.<p>However, your resume is a marketing document, not some kind of official biography, and as such can be tailored to the kind of job you&#x27;re applying for. If you&#x27;re applying for iOS jobs, you can spend more space presenting your iOS skills.