#k factor

If you're trying to grow your mobile app or stimulate your marketing campaigns, knowing what is K factor is can give you a competitive advantage. Many successful apps use the K-factor to measure how fast they grow through user referrals; by knowing how to calculate it and increase it, you’ll be able to dramatically change your results.

In this guide, we cover what is K factor, how the K-factor works, and some tips for using the K-factor to build growth faster.

What Is the K Factor?

First, let's look at the K factor. To put it simply, the K-factor is how viral your app or marketing campaign is. It tells you how many new users one existing user brings.

If your app has a K-factor greater than one, this means that users are getting it into the hands of more users just from them telling others about it. The greater the K-factor, the quicker you'll grow a user base without having to pay for ads.

Knowing what is K factor is valuable because it shows if you are naturally growing your app or service because your users are.

Why K Factor in Marketing Matters

Natural Growth

K factor in marketing matters because it allows your brand to expand in reaching more users without spending a bunch of money on marketing. When users love your app and refer it to friends, you naturally grow your user base at no additional cost. 

That is why knowing what is K factor can potentially save you money and time to still reach a greater audience.

Trust and Recommendations

Trust comes with user recommendations for your app. Friends trust their friends more than they trust ads. The K factor in marketing quantifies this powerful form of word-of-mouth growth and helps you track it.

The better you understand what is K factor, the better you can create marketing strategies that inspire sharing.

How to Perform K Factor Calculation

The Basic Formula

To assess the virality of your app, you have to know the K-factor formula. It’s quite simple:

K-factor = Number of Invites Sent per User × Conversion Rate of Invites

The K factor formula is a simple way to illustrate how many new users, each existing user brings on to your app.

Understanding what is K factor and learning how to use the to identify if your growth efforts are working.

An Example

Let’s say on average, each user sends 4 invites and 25% of invites convert to new users.

K-factor = 4 x 0.25 = 1

A K-factor of 1 means that on average, every user brings in 1 new user (so pretty soon your base will double).

Understanding what is K factor and applying with real-world examples helps to conceptualize how to make your app perform better.

Tips to Improve Your K Factor

Make Sharing Easy

If you’re looking for a higher K-factor, be sure to enable users to share your app easily. Add referral links, social share buttons and invite friends options directly on your app.

The more you concentrate on what is K factor, the more you’ll realize the easier you make the share process, the less friction there is.

Offer Rewards for Referrals

It is not enough to know what K factor is - you will also need to track it. Use analytics tools that track exactly how many invites are sent, and how many of those invites actually turn into users.

This allows you to see when you are increasing your virality, and when you are slowing down virality. Regularly tracking your K factor calculation will help you make better marketing decisions. 

Measuring and Tracking Your K Factor

While K factor formula is a useful weapon, remember that it should be taken in context with other metrics like retention and lifetime value. It is important that these metrics together make up the full picture of your app's health. 

Understanding what is K factor is a large piece of the puzzle, but it is best applied with a full understanding of your user journey.

K Factor Formula and Other Growth Metrics

While the K factor formula is an incredibly powerful tool, keep in mind that it works best in combination with other metrics, such as user retention and lifetime value, which together provide you with an accurate health assessment of your app.

Understanding what the K factor is is a big part of the equation, but it works best if you are able to look at the full user journey.

Understanding what the K factor is and then applying it to your mobile app or marketing strategy is one of the smartest things you could do. It helps you to understand how well your users are helping you grow, and it gives you clues to improve it.

Final Thoughts: Mastering What Is K Factor for Growth

Employing smart referrals, offers, convenient sharing, and rewarding loyal users will all serve to improve your K factor in marketing, and provide an efficient and economical way to grow very quickly.

When it comes to measuring the flow rate of air or gas in a duct, there are many different devices used.  For example, there are thermal sensors, hot wire anemometers, rotating vane anemometers, static pressure drop devices (venturi, orifice plate), and differential pressure devices (pitot, annubar, primary element).  The most widely used and considered a true measurement of the flow is the differential pressure device.  The most widely used differential pressure device is a velocity averaging pitot tube.

Velocity Averaging Pitot Tube

The velocity averaging pitot tube is a device that when inserted into the air or gas flow stream, provides a high pressure measurement port and a low pressure measurement port.  The high pressure port measures the total pressure created when the air or gas stream impacts the port, where the low pressure port typically measure the static pressure in the duct.

VAP³ Velocity Averaging Pitot Tube from Eastern Instruments

The difference between the two pressures, called the dynamic pressure, can be used to calculate the flow in the duct using the Bernoulli principle and equation. This equation, in a simplified form when using a pitot tube, states that the velocity in a duct is equal to the square root of two times the differential pressure, divided by the density of the air or gas.

For the best results using a pitot tube, there should be an array of probes used to ensure that there is an adequate traversing across the duct cross-section.  In addition, the individual pitot tubes would have multiple ports, thus averaging the pressure measurement in any one probe and then in the array of probes.

Velocity Averaging Pitot Tubes in a Round or Square/Rectangular Duct

VAP³ Pitots in an Array in a Circular Duct

VAP³ Pitots in an Array in a Square/Rectangular Duct

Not all pitot tubes are created equally.  Most are just a cylindrical tube or set of tubes that have holes in them, or some modification of the cylindrical design.  The flow profile around these tubes can be distorted and even non-repeatable, causing them to have a calibration factor or "K" factor based on flow rate or velocity of the air or gas stream.

In order to get the best result and not have an affect based on the flow around the pitot tube, the pitot tube should have a cross-section such that the flow pattern is not disturbed.  Such is the case with the VAP³ Velocity Averaging Pitot Tube from Eastern Instruments.  Its patented design allows the flow profile to run parallel around it, before combining together behind the probe.  This not only allows the probe to get an accurate differential pressure measurement, but makes the pitot velocity independent, eliminating the need for the K factor.

While velocity averaging pitots can provide a very accurate way to obtain the flow rate in a duct, they are susceptible to particulate in the air or gas stream.  Most pitots can plug when the particulate is large or if it is heavily particulate laden. The high port will plug, causing an error in the differential pressure measurement.  The typical way to combat this issue is to use a high pressure purge or blow out, but these systems can be complicated and expensive to run.  The VAP³ PA Pitot from Eastern Instruments uses that same patented design that allows it to be independent of velocity yet also provides a plug resistant configuration where the high port is not in the direct impact of the air or gas stream, thus making it plug resistant.

VAP³ Velocity Averaging Pitot in the SA (Clean Air/Gas) and the PA (Particulate Laden/Plug Resistant)

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Viral marketing is a discipline that might be applied to any aspect of a business, The term viral can be used to describe the reach of a video, the growth of a service or even the acquisition of new users.

A formula is developed to simulate theoretically the process of a viral growth of an application or website, according to this formula you'll need a viral coefficient greater than 1 to achieve viral growth (or go viral).

The formula is :  I * CR = K I = Invitations sent per user CR = conversion rate of invitations K = viral coefficient

for example: if the user sent 100 invitation and that led to 1 new user in average, you have a viral coefficient = 1, at the same time if 10 invites are sent and 1 new user is acquired you also has a viral coefficient of 1, which means that basically every user should bring you another user at least!

Let's use logic, I and CR are both important for viral growth, the higher you can get I and CR the more viral your application, you website will be. The K factor is not everything, but it is an important factor in viral growth!