The Real Reason Customers Leave Your Bank Starts Inside the Mobile App
By Liz Froment, Contributor at The Financial Brand
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Bank marketers have treated mobile apps as service channels, places to check balances and move money. While, marketing often happened somewhere else, through email, direct mail, and in-branch interactions.
That’s changing. Now, 50% of digital banking users are willing to switch providers for a better digital experience, and the app is where that experience lives. Banks have always had deep insight into their customers’ financial lives. The difference now is using it to reach consumers before they start looking elsewhere.
Need to Know:
“Banks don’t have a data problem so much as they have a timing problem,” Micah Margolis, transformationist at Alacrity Partners, a bank technology consulting firm, told The Financial Brand. “Transaction data only creates value if it’s activated before the customer or member encounters viable solutions elsewhere.”
Margolis calls this window ‘The Decision Moment.’ It’s when a customer is actively considering a financial move but hasn’t started shopping competitors yet. Miss it, and your offer is forgotten.
The banks seeing results use the app to act when that moment happens.
Why It’s So Hard to Get Right
The barrier most banks face is speed, not data: “A primary technical barrier is data latency,” says Preetha Pulusani, CEO of DeepTarget, a digital marketing company that provides solutions to banks. “Most financial institutions sit on a goldmine of data, but it’s often locked within legacy core systems that process in batch cycles. By the time marketing teams extract, clean, and load that data into an external campaign tool, the customer’s ‘moment of need’ has passed.”
Organizational structure can also leave data siloed between departments: Marketing may own the messaging, but technical teams may view the app as a support tool rather than a sales channel. So, timely in-app offers can fall through the gap.
“Until these teams share a unified KPI regarding digital engagement and sales, the technical integration required to trigger real-time, in-app offers will remain a roadmap item rather than a reality,” Pulusani says.
But even when banks solve the technical and organizational problems, there’s a decision about how to use the app without alienating members. Apps work best when delivering contextually relevant help, not broadcasting offers to everyone who logs in.
“Very few messaging-based moments are best delivered in the mobile app alone,” says Mitch Rosenbaum, SVP of innovation at Tyfone, a digital banking solutions provider. “A visitor has logged in for a reason, such as checking their balance, making a payment, or similar. If you interrupt with a marketing message that isn’t specific to why they logged in, you are just getting in the way and making the user less interested in what you have to say.”
What’s Actually Working
As more consumers manage their finances through mobile apps, some banks and credit unions are testing whether their apps can do more than just serve transaction data.
“The mobile app is best suited for high-intent, low-friction moments,” Pulusani says. “When a user logs in, they are financially engaged right now. This is the ideal environment for immediate liquidity solutions, like overdraft protection, or ‘one-click’ acceptance of pre-qualified lending offers. The user is already authenticated and in a transaction mindset.”
Many banks and credit unions are finding that the offers that perform best are those that customers can act on without friction.
“Our highest-performing in-app offers in 2025 were CashBack+ and Savings Builder,” Ami Iceman-Haueter, chief experience officer at MSU Federal Credit Union, told The Financial Brand. “When a member can see an offer, understand the product, and act right away, such as opening a Savings Builder account or starting to use CashBack+, it transforms the experience from a simple advertisement into a real benefit for the member.”
Keeping members inside the app can often matter more than the offer itself: “Sales depend heavily on keeping members inside the app experience,” Iceman-Haueter says. “If a product, service, educational piece, or blog requires leaving the app, it adds friction.”
Reducing friction is only part of it, however. The offer also has to feel relevant and not like a sales pitch. “The anticipatory offers that convert the best are the ones that feel like the bank or credit union noticed something insightful and made life easier for the customer or member,” Margolis says.
Reading the Signals
Financial institutions can begin using transaction data to inform marketing in real time: While campaigns built around demographics or product models still work, the shift is toward behavioral signals — what customers are actually doing with their money.
“The most sophisticated institutions are moving from broad demographic targeting to ‘Wallet Share Recapture,’” Pulusani says. “This implies monitoring transaction strings for payments made to external lenders, such as a recurring monthly payment to a rival credit card issuer or auto lender.”
Pulusani explains that these signals can help indicate ‘wallet leakage’ and payments going to direct competitors, and in that moment, an app can trigger a specific pre-qualified offer. For example, instead of a general “apply for a new car loan” email, an in-app offer can let the customer know exactly how much they could save each month with a new payment plan.
MSU Federal Credit Union also searches for signals from members. “We focus on identifying the signals most relevant to the member while prioritizing their experience, security, and privacy,” Iceman-Haueter says. “These signals may include when a loan is coming due, when a member is making payments to another institution, or when a refinance offer could reduce their payment.”
Building Guardrails That Scale
Using transaction data to trigger offers raises compliance questions, particularly around fair lending and privacy. The financial institutions doing this well are building the rules upfront rather than relying on heavy manual processes.
Pulusani calls this approach ‘Compliance by Design.’
“Instead of compliance officers reviewing every individual ad iteration, they must validate the decision logic and criteria — credit score thresholds, debt-to-income ratios — upfront,” Pulusani says. “Once the logic is certified, the system can run autonomously.”
One safeguard is for the system to automatically kill offers that no longer align with customer data. For example, if a member’s credit situation changes overnight, the system can suppress the pre-qualified offer before they log in again. “This dynamic suppression is something static email campaigns simply cannot do, making the app actually safer from a regulatory standpoint,” says Pulusani.
There’s also the question of which data to use at all. Compliance guardrails mean not every transaction signal should trigger an offer. “We do not base offers on specific purchases or merchants and avoid data that could feel uncomfortable,” Iceman-Haueter says. “We set clear guardrails around data use and focus on building experiences that strengthen engagement and trust.”
Things like loan due dates, payments to competitors, and refinance opportunities may be fair game, while purchase history at specific retailers may not.
Making It Work
For bank marketing teams looking to get more from the mobile app, a starting point can be aligning marketing and digital teams on shared goals tied to engagement and conversion, rather than message volume or targeting a specific channel.
“Think of your surrounding channels — branch, media, email, push, SMS — as your sales team and the app as your closer,” Rosenbaum says. Get the timing right, and the app stops being a service channel and starts being where decisions happen.
