This is a simple node module that tells you when the installed version of a node package (i.e app) is outdated.

Note: if you need a more complete solution check out update-notifier.

npm install --save is-outdated

var isOutdated = require('is-outdated');
var pkg = require('./package.json');

isOutdated(pkg.name, pkg.version, function (err, res) {
    console.log('The latest version of this app is %s', res.version);
    console.log('Please updated it with: npm update -g mypackage');
});

isOutdated(name, version, callback)

• name (string) the name of the package
• version (string) a semver compatible string
• callback (function)
  • err
  • data - false when the package is up to date or an object in the form: { version: 'x.x.x' }

MIT