![Runtastic grew paid Android subscriptions by 44% through an A/B Test.](https://apptimize.com/wp-content/uploads/2017/09/Resources_Runtastic-CaseStudy.jpg)
How Runtastic Grew Paid Subscription
In-app membership upgrades for freemium users are a core part of Runtastic’s monetization strategy. Learn how Runtastic increased paid subscriptions for Android users reaching their in-app paywall by 44% with a simple A/B test.
![](https://apptimize.com/wp-content/uploads/2018/11/Build-Vs-Buy-Whitepaper-Cover.jpeg)
Should You Build or Should You Buy Your Experimentation Software
Here are the key considerations that you should keep in mind while answering this question.
![](https://apptimize.com/wp-content/uploads/2017/11/nir-eyal-image-2.jpeg)
Two Examples of Apps Made Habit-Forming
In today’s world, mobile adoption is not enough– it is crucial to keep new users engaged with habit-forming regularity. Nir Eyal’s ‘Hooked Model’ focuses on just that.