Door Lock App

client

Awesome Apps

service name

UA and ASO

budget

$20k

live preview

01.

Intro of case

When we set out to build Door Lock Screen, the vision was clear — create a fun, stylish, and secure screen lock experience that makes every phone feel personal and unique. Inspired by the idea of turning a basic phone lock into an interactive design element, we designed the app to simulate a door-opening animation, giving users both visual appeal and functional security.

What started as a creative utility concept soon became the No. 1 Door Lock Screen app in over 30 countries, loved by over 7 million users worldwide.

02.

Work challenges

Bringing this concept to life came with a few major challenges:

Differentiation in a saturated utility app market: Screen lock apps are common, so we had to make ours stand out visually and functionally.

Balancing security with user experience: The app needed to look cool but also provide real privacy protection with a smooth unlocking process.

Optimizing ASO to attract global users: With an international user base, we had to localize keywords, store listings, and visuals effectively.

Scaling UA profitably: We had to keep acquisition costs low while maintaining high install quality and monetizing with ads and in-app features.

03.

Main result

By combining strong ASO, strategic user acquisition campaigns, and careful creative testing, we turned Door Lock Screen into a viral utility hit:

🚪 Over 7 million downloads globally
🌍 Ranked No.1 in the “Door Lock Screen” category in 30+ countries
💸 Achieved consistent revenue through ad monetization and user retention-focused features
📈 High retention driven by continuous updates, creative A/B testing, and localized promotions

Today, the app remains a user favorite — not just because it keeps phones secure, but because it makes unlocking your phone fun and stylish. And behind the scenes, it’s a great example of how strong ASO and UA strategy can turn a simple idea into a global success.

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