How to Track Free to Paid Plugins on

At the beginning of this year I started tracking users who visited my upsell page from my free coming soon plugin in to learn how many of my sales were coming from and to learn how long the conversion time was. I had been tracking this with campaign variables in Google Analytics but I felt it was not giving me an entirely accurate picture. Also Google Analytics only breaks down time to purchase by day. GA was saying 96% of my sales happened within one day. So adding my own tracking cookie would let me figure out exactly what was going on.

Here’s how I implemented it. First I add a cookie to the user as soon as they visited my upsell page from my free plugins on Since I don’t index my upsell page and the only way to get to it is via my upsell ad in my free plugin I knew this would only be users coming from the free version. I add this code in my functions.php on my theme.

So what I’m doing here is inserting a cookie on the user’s browser if not set with the source which is ”free_plugin’ and the datetime  with a pipe as a delimiter. When and if the user purchases my Pro Version I then check and read that cookie if it exists and add the info to the user’s order record. How you do this will depend on what you are using to sell your plugin. I have a custom system but I will provide the code so you can see how I’m reading the cookie.

So now I have the source and datetime on the order record. Now I can just use sql queries to figure out how long free to paid is and what percentage come from .org.

Here’s what I learned:

Time to purchase:
within 1 minute: 2%
within 2 minute: 14%
within 3 minute: 25%
within 4 minutes: 35%
within 5 minutes: 40%
within 10 minutes: 53%
within 20 minutes: 61%
within 30 minutes: 65%
within 1 hour: 70%
within 2 hours: 74%
within 3 hours: 76%
within 12 hours: 80%
within 1 day: 83%
within 2 days: 87%
within 1 week: 92%
within 2 weeks 95%
within 1 month: 98%
greater than 1 month 2%

Percent of sales from .org:

Hope this gives you some clearer insights into your sales funnel.