Leverage the Power of Free to Drive Customers

Free goods have an extra magnetic power. Before a customer buys a product, they usually investigate its value as well as the price. But when something is offered for free, it forces them to step away from their regular decision-making process. In this blog, we will explore the nature of the phenomenon, question the true psychology behind the power of free, and identify ways to master the zero price effect.  

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How the Zero-Price Effect Works?

The zero price effect is based on an irrational consumer's behavior to value free goods over products priced slightly above zero. People tend to have lower expectations attached to free products, so it’s relatively easy to surpass them. 

The logic is simple. For most consumers, the zero price effect takes away the difficulty of deciding a purchase. Instead of having to solve the difficult problem of weighing the benefits vs. the costs of different product alternatives, a free option allows them to choose the one without the hassle  i.e., no costs. A free product means no effort or time has to be invested in the decision.

Moreover, science has shown that a ‘free’ offer may completely reverse the usual preference for the same commodity. In an experiment, two types of chocolates were offered in a cafeteria, Hershey for 1 cent and Lindt for 14 cents. At these prices 8% of people chose Hershey and 30% chose Lindt. However, when one cent was reduced so that Lindt cost 13 cents and Hershey - free - the demand for Hershey almost quadrupled to 31%. This irrational preference for free things is what we call the zero price effect or the Power of FREE! 

The Power of FREE in Action 

We have seen consumers line up for hours to grab a free coffee offered by a trending coffee brand, even though they buy a similar coffee every day at a very low price somewhere else. Surveys suggest that they are willing to take unusual measures to get the free product, and that they value it more highly, simply because it costs nothing. 

Free as a growth strategy
Companies around the globe use the zero price as a penetration pricing strategy to especially introduce new products and capture market share. Free goods have shown to increase exposure, build reputation, and make consumers happy thereby increasing customer advocacy leading to more customers. According to Hubspot, 75% of people don’t believe adverts, yet 90% trust suggestions from family and friends and 70% trust consumer reviews when making purchase decisions. 

Free pricing is a powerful tool that can help businesses acquire new customers without paying for expensive advertising campaigns. 

Freemium: The Power of FREE as a business model
Over the past decade, we have observed digital products increasingly harness the power of FREE. New business models such as ‘freemium’ allow customers to access services without paying for a premium subscription. By leveraging the irrational behavior of consumers towards free things, entirely new ways of monetization become possible. While the most motivated free users upgrade to a more premium paid plan or product, the others contribute to the overall awareness and network effects, e.g., of an online game.

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Extras, extras, extras: the zero price effect and product & service bundling

Product bundles are frequently used in the tourism industry. In these bundles, free components play a decisive role in increasing sales. Essentially, customers are offered a choice of multi-component packages. Research shows that travelers prefer these additional components to a cheaper offer that does not include free services, for the reason that customers are unable to rationalize the price of each element of the bundle. The addition of a free add-on makes the offer seem more appealing. 


Amazon Free ShippingThe case of free shipping

Amazon’s recent introduction of free shipping service for purchases above €20 in Europe is yet another zero price strategy that concluded to be effective. In the countries where free shipping was offered,  most customers instantly added further products to reach a purchase value of €20. Predictably in France, the only country that offered a deduction in shipping, witnessed that customers did not add further products to reach the €20. The zero price model successfully drove up user numbers to higher levels. 

Moving from Principles to Practice
After realizing the true power of zero, many companies have spent a big budget developing free products. As we said before, free goods have an extra magnetic power. By choosing the right product and time, making informed decisions with data, companies can create a sentimental value that can deepen customer loyalty. 

However, it's not just enough to figure out the zero price effect but also the customer behavior and conversion strategy. Unlike the first step, where the consumers move past the product selection stage without a cost barrier, converting consumers to pay for the same product later can prove to be a bit of a hurdle. Once a brand gets a customer used to free products or services, it’s tough to get them to pay for the same service or product later on. 


There are three notable challenges when implementing the zero price model.

  • The gradual introduction of a paid version can result in consumers having to differentiate between two different sets of benefits - the free version vs the paid version - complicating your brand’s true value. 

  • We have observed the zero price effect starting to fade once the consumer starts to think carefully about the free item. Its attractiveness seems to decline, as they realize that there is a sacrifice attached to obtaining it. A cost to obtaining something "free" seems counterintuitive. 

  • The conscious customer of today is starting to get ‘suspicious’ of ‘over generous’ brands providing free offers. This implies that the free strategy can even lead to unintended negative consequences for a brand.


A buynomics case study: Is today’s customer suspicious or more-aware?

In our recent buynomics’ global behavioral pricing parametrization study, we AB-tested the power of zero price effect. Two groups of consumers each in three different countries were given a choice between two data tariff plans.

In the first case, a customer had the choice of 3 GB or 5 GB data at €1 per month for a period of 6 months. In the second case however, the 3 GB plan was offered for the same price, but the 5 GB plan was offered at zero, for the same time period.

Objectively, the 5 GB plan was more attractive in case 2 compared to 1 (no payment for the first 6 months vs. €1). Given the current science on the power of zero, the 5 GB plan should have been preferred substantially more often. However, the result was much more mixed: 

In Spain and France, 64% and 46% of customers preferred to pay €1 for both data rates, respectively. In Germany, on the other hand, 10% of consumers switched to the free plan. 

This raises the question: Is the zero price effect still a valid concept? 

Given the experiment the answer appears to be much more nuanced than popular science will have you think. Context like product, culture, and industry have a huge effect on the validity of this effect.

Context is everything: Master the zero-price effect on the buynomics platform!

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At buynomics we are constantly adding further behavioral traits to the repertoire of the virtual customers on the buynomics platform. Virtual customers make purchase decisions just like real customers when shown potential offers — single products or portfolios, at different price points, and with or without competition. This allows users of the buynomics technology to find the offer that optimizes sales, revenue, or profit. Among a range of other behavioral traits, buynomics’ virtual customers can also be susceptible to the price of zero.

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