Facebook (Python), Hubspot(Javascript), GlassDoor (Java)

Intuit

SeatGeek

GingerLime

Multiple - Python, Java, PHP

Java

Python

None

Add own logic for log-event - event object is received as an input

Full-fledged API - for assignment, impression, engagement

API for collection impression/engagement

Stores in javascript localstore, gives plug-in point

BSD

Apache 2.0

BSD

MIT

None

Cassandra/MySQL

Redis

None

Support's namespace  - can be used to qualify experiment further

Has UI for configuring and looking at analytics data

Has UI for configuring and looking at analytics data

Has support for tracking adapters, as well as allows to implement custom tracking adapter.

//Extend experiment class
//and over-ride assign function to
//initiate variants

classMyExperimentextends
PlanOut.Experiment {

assign(params, args) {
params.set(‘foo’, newPlanOut
.Ops.Random
.UniformChoice({‘choices’: [‘a’, ‘b’],
‘unit’:args.id}));
}

}

//Following is way to get value out
of experiment object

var exp =
newMyExperiment({‘id’:user.id }); console.log(“User has foo
param set to “ +exp.get(‘foo’));

They have back-end and UI for confguri

var session =newsixpack.Session(); session.participate('test-exp', ['alt-one'
, 'alt-two'], function (err, res) { if (err) throw err; alt =res.alternative.nameif (alt =='alt-one') { console.log('default: '+ alt); } else { console.log(alt); } });

var button_color_experiment =newAlephBet.Experiment({ name:'button color',
// the name of this experiment; required. variants: {
// variants for this experiment; required. blue: { activate:function() {
// activate function to execute if variant is selected$('#my-btn').attr('style', 'color: blue;'); } }, red: { activate:function() { $('#my-btn').attr('style', 'color: red;'); } } }, });