diff --git a/browser/lib/clientKey.js b/browser/lib/clientKey.js
deleted file mode 100644
index 5d5c1f3c..00000000
--- a/browser/lib/clientKey.js
+++ /dev/null
@@ -1,23 +0,0 @@
-import _ from 'lodash'
-import keygen from './keygen'
-
-function getClientKey () {
-  let clientKey = localStorage.getItem('clientKey')
-  if (!_.isString(clientKey) || clientKey.length !== 40) {
-    clientKey = keygen(20)
-    setClientKey(clientKey)
-  }
-
-  return clientKey
-}
-
-function setClientKey (newKey) {
-  localStorage.setItem('clientKey', newKey)
-}
-
-getClientKey()
-
-export default {
-  get: getClientKey,
-  set: setClientKey
-}
diff --git a/browser/main/Main.js b/browser/main/Main.js
index cbc1e7ec..17128467 100644
--- a/browser/main/Main.js
+++ b/browser/main/Main.js
@@ -12,6 +12,11 @@ import _ from 'lodash'
 import ConfigManager from 'browser/main/lib/ConfigManager'
 import modal from 'browser/main/lib/modal'
 import InitModal from 'browser/main/modals/InitModal'
+import mixpanel from 'browser/main/lib/mixpanel'
+
+function focused () {
+  mixpanel.track('MAIN_FOCUSED')
+}
 
 class Main extends React.Component {
   constructor (props) {
@@ -49,6 +54,12 @@ class Main extends React.Component {
           modal.open(InitModal)
         }
       })
+
+    window.addEventListener('focus', focused)
+  }
+
+  componentWillUnmount () {
+    window.removeEventListener('focus', focused)
   }
 
   handleLeftSlideMouseDown (e) {
diff --git a/browser/main/index.js b/browser/main/index.js
index 4dfd0078..56dffb11 100644
--- a/browser/main/index.js
+++ b/browser/main/index.js
@@ -7,6 +7,7 @@ require('!!style!css!stylus?sourceMap!./global.styl')
 import { Router, Route, IndexRoute, IndexRedirect, hashHistory } from 'react-router'
 import { syncHistoryWithStore } from 'react-router-redux'
 require('./lib/ipcClient')
+
 const electron = require('electron')
 const ipc = electron.ipcRenderer
 
diff --git a/browser/main/lib/mixpanel.js b/browser/main/lib/mixpanel.js
new file mode 100644
index 00000000..3214c5f8
--- /dev/null
+++ b/browser/main/lib/mixpanel.js
@@ -0,0 +1,91 @@
+const _ = require('lodash')
+const keygen = require('browser/lib/keygen')
+const Mixpanel = require('mixpanel')
+const mixpanel = Mixpanel.init('7a0aca437d72dfd07cbcbf58d3b61f27', {key: 'fde4fd23f4d550f1b646bcd7d4374b1f'})
+const moment = require('moment')
+
+function _getClientKey () {
+  let clientKey = localStorage.getItem('clientKey')
+  if (!_.isString(clientKey) || clientKey.length !== 40) {
+    clientKey = keygen(20)
+    _setClientKey(clientKey)
+  }
+
+  return clientKey
+}
+
+function _setClientKey (newKey) {
+  localStorage.setItem('clientKey', newKey)
+}
+
+function _fetch () {
+  let events
+  try {
+    events = JSON.parse(localStorage.getItem('events'))
+    if (!_.isArray(events)) throw new Error('events is not an array.')
+  } catch (err) {
+    console.warn(err)
+    events = []
+    localStorage.setItem('events', JSON.stringify(events))
+    console.info('Events cache initialzed')
+  }
+  return events
+}
+
+function _keep (name, properties) {
+  let events = _fetch()
+  properties.time = new Date()
+  events.push({
+    name,
+    properties
+  })
+  localStorage.setItem('events', JSON.stringify(events))
+}
+
+function _flush () {
+  let events = _fetch()
+  let spliced = events.splice(0, 50)
+  localStorage.setItem('events', JSON.stringify(events))
+
+  if (spliced.length > 0) {
+    let parsedEvents = spliced
+      .filter((event) => {
+        if (!_.isObject(event)) return false
+        if (!_.isString(event.name)) return false
+        if (!_.isObject(event.properties)) return false
+        if (!moment(event.properties.time).isValid()) return false
+        if (new Date() - moment(event.properties.time).toDate() > 1000 * 3600 * 24 * 3) return false
+        return true
+      })
+      .map((event) => {
+        return {
+          event: event.name,
+          properties: event.properties
+        }
+      })
+
+    mixpanel.import_batch(parsedEvents, {}, (errs) => {
+      if (errs.length > 0) {
+        let events = _fetch()
+        events = events.concat(spliced)
+        localStorage.setItem('events', JSON.stringify(events))
+      }
+      console.log('batched ', errs.length)
+      _flush()
+    })
+  }
+}
+
+setInterval(_flush, 1000 * 60 * 10)
+
+function track (name, properties) {
+  properties = Object.assign({}, properties, {
+    distinct_id: _getClientKey()
+  })
+  _keep(name, properties)
+}
+
+module.exports = {
+  _mp: mixpanel,
+  track
+}
diff --git a/package.json b/package.json
index 44cb7aea..dc66df71 100644
--- a/package.json
+++ b/package.json
@@ -55,6 +55,7 @@
     "markdown-it-emoji": "^1.1.1",
     "markdown-it-footnote": "^3.0.0",
     "md5": "^2.0.0",
+    "mixpanel": "^0.4.1",
     "moment": "^2.10.3",
     "node-ipc": "^8.1.0",
     "sander": "^0.5.1",
diff --git a/webpack-skeleton.js b/webpack-skeleton.js
index 7d053ccc..f4f2115c 100644
--- a/webpack-skeleton.js
+++ b/webpack-skeleton.js
@@ -42,6 +42,7 @@ var config = {
     'markdown-it-checkbox',
     'season',
     'devtron',
+    'mixpanel',
     {
       react: 'var React',
       'react-dom': 'var ReactDOM',