Connecting the dots between web and mobile to acquire users at scale

Stash AppsFlyer Customer


Launched in 2015, Stash was founded to help the 70% of Americans living paycheck-to-paycheck make financial progress. 

They began by making investing accessible to anyone, enabling people to invest in well-known stocks and ETFs with just $1. Shortly after, Stash launched simple, no hidden-fee banking to further meet the financial needs of their customers, and to continue their mission of becoming the financial home to the middle class.

Today, Stash has over 5M users and counting.


Making the decision to switch banks or begin investing is a big step for the average American. The Stash team believed a frictionless onboarding process was key to making a great first impression and building trust with new customers. 

To accomplish this, the journey from platform-to-platform, and specifically from Stash’s website to Stash’s mobile app, needed to be flawless. 

With the team running marketing campaigns across a number of channels and media, they needed a way to provide their customers with the most seamless web-to-app experience possible. 

Furthermore, they needed to know where people were hitting snags in the onboarding process and address those quickly to ensure a good customer experience. To this end, data and analytics were critical factors in diagnosing areas of improvement and solving customer problems.


AppsFlyer’s deep linking capabilities, powered by OneLink, helped the team build a fantastic web-to-app onboarding experience in addition to accurate analytics. This combination of capabilities helped the Stash team feel confident in deploying AppsFlyer’s deep links as their default solution across their media ecosystem, including a long-tail of less traditional acquisition partners where accurate attribution was critical.

In addition, piping granular attribution data from AppsFlyer into Stash’s data stream gave their Data Science team visibility into all touch points along the customer journey leading up to an install providing invaluable insight into the user journey with unmatched flexibility as well.

Kate Palmer, the Director of Growth at Stash commented on their decision to choose AppsFlyer noting:

“AppsFlyer is an invaluable solution that brings light to our user journey and gives us more confidence in our web-to-mobile strategy.”


AppsFlyer’s deep linking solution powered by OneLink provided the Stash team a dynamic solution to measure web-to-app attribution across its various marketing campaigns and partners, while also providing the additional analytics and visibility to help them optimize the customer onboarding experience.

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