Try ASO Index free
Visit Rocket AdsD30 ROAS63.8%
Hardcore Games
High-intent UA lifted efficiency and LTV.
- Genres
- MMORPG, Strategy, Simulation
- Key KPIs
- LTV, ROAS
- Levers
- Hybrid, UA, Influencers, Creative
Your North Star
for App Growth in
Japan & Korea.
Local insight. Global ambition. The growth team that takes your app further.
Our growth engine
From One Seed
to Orbit.
Four stages on one line — from the app store to new markets.
- Stage 01 · Seed
Plant the seed with ASO Index.
It all starts in the store. ASO Index reads Japanese and Korean keywords by morpheme, and we localize your listing, creatives and messaging so your app takes root in a new market.
- Stage 02 · Growth
Focus everything on growth.
Once the roots hold, we solve whatever is holding growth back — user acquisition, influencer campaigns and PR, run as one plan aimed at your North Star Metric.
- Stage 03 · Expansion
Harvest, then expand.
Growth turns into results you can collect. Then we build the brand around them — influencer partnerships, branding and community — and carry it into new markets.
- Stage 04 · Rocket Ads
Launch further with Rocket Ads.
When the playbook is proven, Rocket Ads takes it to scale — rewarded campaigns that bring engaged users across Japan, Korea and beyond.
Who we grow with
For Games and Apps
Reaching for the Stars.
Best fit: publishers who ship their own apps and share data.
Mobile games
- HardcoreRPG, MMORPG, naval battle
- Survival & StrategySurvival, strategy, defense
- Midcore & SportsShooters, sports, social deduction
- Casual & MergeFarming, merge, adventure
- Puzzle & CardPuzzle, mahjong, poker
Mobile apps
- Content & CommunityAI chat, creative tools, audiobooks
- Social & LanguageLanguage exchange, couples, friends
- Rewards & CommercePoints, rewards, local marketplace
- Lifestyle & HealthSports, golf, planning, wellbeing
- Utility & SecurityVPN, antivirus, family safety
Performance highlights
Proof, Not Promises.
D30 ROAS52.4%
Midcore Games
UA plus ASO grew ROAS and organic.
- Genres
- RPG, Action, Adventure
- Key KPIs
- ROAS, Retention
- Levers
- ASO, UA, Influencers, Creative
D30 ROAS79.2%
Casual Games
Low CPI at scale, plus ad revenue.
- Genres
- Puzzle, Arcade, Hyper Casual
- Key KPIs
- CPI, ROAS
- Levers
- UA, ASO, Creative A/B testing
※ Some data anonymized for client privacy. D30 ROAS: top 10 services, 2024–25 average.
Insight
Field Notes from
Japan & Korea.
TOP 20 Health & Fitness Apps in iOS App Store Japan
In today’s increasingly health-conscious world, the healthcare/fitness app market is diverse, with many apps appealing to users interested in health management and fitness.
Exploring Google’s Experimental Generative AI for Custom Store Listings (with Test Results!)
In a groundbreaking move, Google Play developers now have access to an experimental AI tool that promises to revolutionize the way store listings are created. This cutting-edge feature, aptly named…
ASO Audit: Airbnb Japan
The Airbnb app has achieved the 24th position among Travel category apps in the Japanese App Store. While this accomplishment is noteworthy, a closer examination of its App Store Optimization (ASO)…
Who do you work with?
App and game publishers entering Japan or Korea — ideally teams that ship their own apps and can share data.
Can we work with you in English?
Yes. Our team works in English, Japanese and Korean, from offices in Tokyo and Seoul.
How are you different from a local agency?
One team covers both markets and every channel — ASO, UA, creators and PR — with our own tools, ASO Index and Rocket Ads.
What does it cost?
Every engagement is scoped to your goals and budget. Tell us about your app and we’ll suggest a plan.
Is ASO Index really free?
Yes. ASO Index is 100% free — no plans and no payment details.
Ready for launch
Find Your North Star
in Japan & Korea.
Tell us about your app. We’ll show you where growth can come from.