DearOne's Retail Media Platform "ARUTANA," Enabling Cross-App Ad Distribution to Retail Official Apps, Exceeds 50 Million MAU
DearOne announced that its retail media platform "ARUTANA," which enables cross-app ad distribution to retail official apps, surpassed 50 million Monthly Active Users (MAU) in May 2026, reaching 51.2 million. This expansion is driven by increased adoption by retail companies, allowing effective engagement with high-intent users.
📋 Article Processing Timeline
- 📰 Published: May 13, 2026 at 01:00
- 🔍 Collected: May 12, 2026 at 16:32
- 🤖 AI Analyzed: May 12, 2026 at 16:56 (23 min after Collected)
DearOne Inc. (Headquarters: Minato-ku, Tokyo; Representative Director: Yasuhisa Kono; hereinafter: DearOne), a new business subsidiary in the marketing field of NTT Docomo, Inc., announced that the Monthly Active Users (MAU) of "ARUTANA," its retail media platform that enables cross-app ad distribution to retail official apps, exceeded 50 million in May 2026, reaching 51.2 million.
■ MAU Exceeds 50 Million Due to Expanding Adoption by Retail Companies
Recently, while more companies are strengthening their efforts in retail media, challenges such as "high operational burden due to differing submission rules for each medium" and "difficulty in verifying effectiveness linked to purchase data" have become apparent. In this context, the importance of "retail official apps" as a medium is once again increasing.
According to DearOne's "Retail App Usage Trend Survey (April 2026)*," 81.9% of retail official app users responded that they "launch the app at least once a month." Users of retail official apps are loyal customers who visit stores frequently and are considered to be highly motivated to purchase. "ARUTANA" networks these official apps, which can reach such purchase-prone user segments, enabling cross-app ad distribution without individual company customization and providing end-to-end support for effectiveness verification based on actual purchases.
DearOne values and emphasizes the realistic scale of currently reachable media, rather than theoretical reach. By networking customer touchpoints of this scale, which are difficult for a single retail company to acquire, DearOne provides media value that reliably leads to purchases.
* From a web survey conducted by DearOne in April 2026, targeting 3,124 respondents who stated they had installed official retail store apps.
■ "ARUTANA"'s Superiority and Expanding Utilization
・Direct Approach to Users in Shopping Mode
Leveraging the characteristic that approximately 75% of app users launch the app in-store*¹, ARUTANA enables highly visible approaches such as full-screen modal ads to users whose purchase intent is heightened in-store.
・Overwhelming Response Rate: Average CTR of 2% to 5%
Modal ads record a very high response rate with an average CTR (Click-Through Rate) of 2% to 5%. Leveraging this visibility and the timing of contact "just before purchase," ARUTANA allows flexible utilization in the lower funnel as a "final push" at the point of sale, for announcing buy-one-get-one campaigns conditioned on "purchase of target products" or brand switching initiatives aimed at acquiring new customers.
*¹ According to our company's research.
■ About "ARUTANA"
"ARUTANA" is a retail media platform that networks official retail company apps, enabling cross-app ad distribution.
Advertisers can distribute ads simultaneously to multiple retail official apps simply by placing an ad on "ARUTANA." Since approximately 75% of retail official apps, which users actively launch, are launched in-store, advertisers can directly appeal to consumers with high purchase intent, expecting high conversion rates and return on investment.
Retail businesses can secure new advertising revenue without development costs by simply implementing the "ARUTANA" mechanism into their official apps. Ad placement can be managed with simple operations from the administration screen, smoothly realizing app monetization.
Retail Media Platform "ARUTANA"
https://www.dearone.io/arutana/
■ Various Inquiries
Document Request Form for Retail Businesses
https://www.dearone.io/arutana/document/
Document Request Form for Advertisers/Agencies
https://www.dearone.io/arutana/document2/
■ About DearOne Inc.
DearOne Inc. is a new business subsidiary in the marketing field of NTT Docomo, Inc.
It offers "ModuleApps2.0," which allows the development of official apps by simply incorporating necessary functions from a rich set of app features, as well as "ARUTANA," a retail media platform that enables cross-app ad distribution to retail official apps.
Furthermore, DearOne handles various MarTech tools such as "Amplitude" for user behavior analysis, CDP, analytics, and customer engagement, supporting the growth of digital products like apps and e-commerce sites.
・Representative: Yasuhisa Kono, Representative Director
・Headquarters: Toranomon 3-8, Minato-ku, Tokyo
■ MAU Exceeds 50 Million Due to Expanding Adoption by Retail Companies
Recently, while more companies are strengthening their efforts in retail media, challenges such as "high operational burden due to differing submission rules for each medium" and "difficulty in verifying effectiveness linked to purchase data" have become apparent. In this context, the importance of "retail official apps" as a medium is once again increasing.
According to DearOne's "Retail App Usage Trend Survey (April 2026)*," 81.9% of retail official app users responded that they "launch the app at least once a month." Users of retail official apps are loyal customers who visit stores frequently and are considered to be highly motivated to purchase. "ARUTANA" networks these official apps, which can reach such purchase-prone user segments, enabling cross-app ad distribution without individual company customization and providing end-to-end support for effectiveness verification based on actual purchases.
DearOne values and emphasizes the realistic scale of currently reachable media, rather than theoretical reach. By networking customer touchpoints of this scale, which are difficult for a single retail company to acquire, DearOne provides media value that reliably leads to purchases.
* From a web survey conducted by DearOne in April 2026, targeting 3,124 respondents who stated they had installed official retail store apps.
■ "ARUTANA"'s Superiority and Expanding Utilization
・Direct Approach to Users in Shopping Mode
Leveraging the characteristic that approximately 75% of app users launch the app in-store*¹, ARUTANA enables highly visible approaches such as full-screen modal ads to users whose purchase intent is heightened in-store.
・Overwhelming Response Rate: Average CTR of 2% to 5%
Modal ads record a very high response rate with an average CTR (Click-Through Rate) of 2% to 5%. Leveraging this visibility and the timing of contact "just before purchase," ARUTANA allows flexible utilization in the lower funnel as a "final push" at the point of sale, for announcing buy-one-get-one campaigns conditioned on "purchase of target products" or brand switching initiatives aimed at acquiring new customers.
*¹ According to our company's research.
■ About "ARUTANA"
"ARUTANA" is a retail media platform that networks official retail company apps, enabling cross-app ad distribution.
Advertisers can distribute ads simultaneously to multiple retail official apps simply by placing an ad on "ARUTANA." Since approximately 75% of retail official apps, which users actively launch, are launched in-store, advertisers can directly appeal to consumers with high purchase intent, expecting high conversion rates and return on investment.
Retail businesses can secure new advertising revenue without development costs by simply implementing the "ARUTANA" mechanism into their official apps. Ad placement can be managed with simple operations from the administration screen, smoothly realizing app monetization.
Retail Media Platform "ARUTANA"
https://www.dearone.io/arutana/
■ Various Inquiries
Document Request Form for Retail Businesses
https://www.dearone.io/arutana/document/
Document Request Form for Advertisers/Agencies
https://www.dearone.io/arutana/document2/
■ About DearOne Inc.
DearOne Inc. is a new business subsidiary in the marketing field of NTT Docomo, Inc.
It offers "ModuleApps2.0," which allows the development of official apps by simply incorporating necessary functions from a rich set of app features, as well as "ARUTANA," a retail media platform that enables cross-app ad distribution to retail official apps.
Furthermore, DearOne handles various MarTech tools such as "Amplitude" for user behavior analysis, CDP, analytics, and customer engagement, supporting the growth of digital products like apps and e-commerce sites.
・Representative: Yasuhisa Kono, Representative Director
・Headquarters: Toranomon 3-8, Minato-ku, Tokyo