Google recorded 47,022,854 monthly active users in Korea last month, passing Naver's 46,845,017 for the first time. Industry analysts credit Gemini and the rollout of AI summaries in search. Read only the headline and it looks like a handover of the Korean search market. One more metric changes the reading.
MAU counts anyone who opened the app once in a month. For an app preinstalled on Android devices, that number starts high by construction. Daily actives and time spent measure something else — whether people actually live inside the product. On total time spent, the gap is still five to six times.
Naver does not end at search. News, shopping, blogs, cafés, maps, and payments all connect inside one app, so a search becomes an entry point rather than an exit. Google is optimized to answer and send the user onward, and AI summaries shorten that visit further. The gap between 6 and 21 minutes is a design difference more than a quality difference.
For reach, Google's growth is real. If AI summaries and Gemini are what pulled users in, it signals that the first touchpoint of information discovery is shifting. We covered the parallel shift in product discovery in AI Became the First Step in Shopping.
The point is not to move money on one metric.
For how reach measurement on Naver's ad products is changing, see Naver Display Ads Adds a Reach Report.
The open question is whether Google can convert added reach into time. AI summaries drive visits but do not extend them. Naver, in turn, has to defend long sessions in an AI-first environment. Next quarter, the number that matters is not the MAU ranking — it is the direction of DAU and total time spent.
It depends on the goal. MAU describes reach; DAU and total time spent describe habit and attention. Media planning is safer when both are read together.
Analysts point to Gemini and the rollout of AI summaries in search. Preinstallation on Android devices also structurally inflates MAU relative to daily usage.
Because search leads into news, shopping, blogs, cafés, and maps inside the same app. Search functions as a starting point rather than an endpoint.
One metric is not enough justification. Increase Google weighting for awareness and reach goals; keep Naver weighting where content consumption and mid-funnel research drive conversion.
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