Rietta.com Security logo
You are reading The Rietta Blog, a publication about the web since 2005.

Software Marketing Metrics

In software marketing, it is important to change one thing at a time and measure the results. Continual iterative improvement is the best way to achieve long term, measurable, results. So what are conversion ratios? Conversion ratios are simply tools to measure how effectively your product is being sold. They can often be easily computed directly from your web logs.

The Overall Conversion Ratio, the Download Conversion Ratio, and the Trial Conversion Ratio are particularly useful, and easy to calculate, for those selling software on the internet.

Overall Conversion Ratio (OCR)

The overall conversion ratio (OCR), Purchases/Total Visits, is the easiest ratio to calculate, but it is generally hard to make much use of since the visit count typically includes a lot of noise from search engine spiders and other non-prospective-customer activity.

Download Conversion Ratio (DLCR)

The download conversion ratio (DLCR). Total Downloads/Total Visits. Assuming you are in the business of offering a try-before-you-buy product to prospective customers, it is fair to say that a unique visitor who downloads a copy of the trial software is a prospective customer. This ratio is more useful than the OCR as there is typically less noise from automated spiders.

Trial Conversion Ratio (TCR)

The trial conversion ratio (TCR), Purchases/Total Downloads, is a great measure for how well a product sells itself to prospective customers. A low TCR indicates that there may be critical problems in the program that need to be addressed:

  • It does not install properly or is otherwise dead-on-arrival.
  • It crashes or behaves incorrectly.
  • It has been cracked.
  • It is falsely identified as malware by one or more anti-virus or anti-spyware programs.
  • It is low quality work for which the prospective customer just does not want to open his wallet.

Looking for More?

If you want to have more fun with ratios, you can check out my 2006 SIC paper on Business Intelligence for the Micro-ISV.

If you want to get really serious about business intelligence, read the

About Frank Rietta

Frank Rietta's photo

Frank Rietta is a web application security architect, author, and speaker. He is a computer scientist with a Masters in Information Security from the College of Computing at the Georgia Institute of Technology. He speaks about security topics and was a contributor to the security chapter of the 7th edition of the "Fundamentals of Database Systems" textbook published by Addison-Wesley.

If there is a topic you would like us to cover,