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The market is often the clearest mirror of what businesses are quietly thinking. In Vietnam’s digital finance sector, that mirror is showing a very different picture in 2026: less glossy, less obsessed with surface-level growth, but more mature.
According to AppsFlyer, finance app installs in Vietnam fell by 22% in 2025, while user acquisition spend dropped by 48%. At first glance, this may look like a slowdown. But for growth marketers, the picture is more nuanced. The market is going through a strategic reset, cutting out inefficient growth and returning to more meaningful indicators such as user quality, retention, customer lifecycle, and measurement transparency.
1. How is Vietnam’s digital finance market changing?
Vietnam’s digital finance market is shifting from volume-led expansion to value-led optimization. Growth is no longer measured mainly by the number of installs, but by the ability to acquire the right users, retain them, and generate meaningful post-install engagement.
Across APAC, AppsFlyer reported that finance app installs declined by 17% in 2025, the first broad regional decline. Vietnam fell by 22%. This reflects a clear reality: after years of aggressive market penetration, acquiring new finance app users at a reasonable cost has become harder.
The important point is that budgets have not simply disappeared. They are being reallocated. Instead of spreading spend widely to buy volume, finance marketers are becoming more selective: which channels bring users who activate, which segments have higher value, which platforms support retention, and which traffic sources should be removed.
In this context, the industry’s question is no longer “How do we get more installs?”. The more practical question is: “How do we acquire more real financial users at a recoverable cost and with enough depth of engagement?”.
2. When scale is no longer the only measure
The 48% decline in UA spend in Vietnam is not only about budget tightening. It signals a shift in growth philosophy. Businesses are no longer willing to pay for every install if that install does not move into onboarding, eKYC, funding, transaction, lending, investment, or repeated product usage.
During periods of fast growth, installs were often treated as proof of scale. But for finance apps, an install is only the entrance. A user who installs the app but does not verify an account, complete a profile, make a transaction, or return after a few days does not create sustainable business value.
This is why Vietnam’s paid install rate increased from 12% to around 21% during the same period. At first, this may sound contradictory: total UA spend fell, but the share of paid installs increased. In reality, it shows that the remaining budget is being used more intentionally. Businesses still invest in paid acquisition, but only when the channel can prove user quality.
For digital finance businesses, this is the moment to review how campaigns are evaluated. A low CPI is no longer enough. A low registration CPA is not enough either. Metrics need to go deeper into value layers: cost per verified user, cost per funded account, cost per first transaction, cost per active user, retention by cohort, and LTV by traffic source.
3. Remarketing becomes the answer to the engagement challenge
When the top of the funnel becomes more expensive and more difficult, the answer is not always to find more new users. Sometimes, stronger growth begins by understanding and reactivating the users who have already entered the ecosystem.
That is why remarketing in finance apps across Southeast Asia has grown sharply. AppsFlyer reported that remarketing spend in SEA increased by 193% year over year; in Vietnam, it increased by 161%. This is not a minor media plan adjustment. It reflects a shift from acquisition-led growth to lifecycle-led growth.
For finance apps, remarketing is especially important because the user journey is long and full of drop-off points. A user may install the app but not complete eKYC. Another may complete a profile but not fund the account. Someone may make one transaction but fail to form a habit. Each state requires a different message, timing, and reason to return.
The result of this shift is starting to appear in retention. Android Day 30 retention in Vietnam reached 4.23%, above the Southeast Asia average of 3.86%. In finance apps, this is a meaningful signal: users are not only installing the app; they are finding more reasons to stay.
Remarketing should not be treated as simply “chasing users who did not buy”. In digital finance, remarketing is a way to build a relationship after the first touchpoint, based on the user’s real lifecycle state.
4. The biggest scratch: fraud remains a trust issue
The average finance app fraud rate across APAC fell to 22% in 2025, but Vietnam still recorded 46%, significantly higher than the regional average.
In finance, fraud is not only a media efficiency issue. It is a trust issue. Every fraudulent install distorts data, weakens optimization algorithms, wastes budget, and causes marketing teams to misjudge channel quality. More seriously, it creates the illusion of growth: the dashboard shows signals, but the business does not receive corresponding value.
When the market was growing quickly, fraud could sometimes be hidden under volume. But as businesses enter a phase of cost control and efficiency optimization, fraud becomes a major weakness across the entire measurement system. Measurement transparency is no longer a technical expense. It is a condition for protecting growth capital.
5. Three priorities for digital finance businesses in 2026
Based on these signals, there are three strategic priorities for digital finance businesses in Vietnam.
First, build first-party data as a growth asset.** As privacy restrictions and tracking limitations become stricter, businesses can no longer rely only on external signals. Data from registration, eKYC, in-app behavior, transactions, engagement history, and CRM should be standardized to support both media optimization and lifecycle marketing.
Second, shift the focus from installs to the customer lifecycle.** Instead of spending too much energy finding new users, businesses need to build an ecosystem that keeps existing users engaged. A successful campaign should not end at the install. For finance apps, value comes when users complete onboarding, understand the product, take their first financial action, and return often enough to form a habit. This requires marketing, product, and data teams to work more closely together. Media brings users to the door. Onboarding experience, educational content, remarketing triggers, push notifications, email, incentives, and customer support determine whether they stay.
Third, invest in fraud prevention and measurement governance. When fraud in Vietnam remains high, investment in measurement infrastructure is no longer just a cost. It is an investment in business survival. Only then can businesses distinguish real growth from numbers that merely look good in reports.
Conclusion
Vietnam’s digital finance market is going through a major transformation. The easy-growth phase is over. In 2026, the market will not reward businesses chasing the illusion of volume. It will reward those that know how to read data to understand real customer behavior, protect budgets from low-quality traffic, and build long-term relationships instead of simply buying another install.
With experience in performance marketing for highly competitive industries, Omega Media believes that digital finance growth cannot rely only on “buying more users”. Growth needs to be designed as a system: selective acquisition, transparent measurement, lifecycle-based remarketing, creative tailored to each user state, and data clean enough for algorithms to optimize in the right direction.
Contact Omega Media to discuss a growth strategy for your business.
