“lock screen passcode”

Difficulty

The typical top-10 app has 29.6K ratings. Reachable with a strong store page and steady ratings.

Keyword in the app name

2 of top 10

Some top apps use it in their name. Having it helps, but it is not required.

Newest app in the top 10

Released 3 years ago. Only older, established apps rank here.

Publishers with several spots

• highsecure2 apps · best #2
• App Lock LLC2 apps · best #6
• Mahesh Kumar Nayak2 apps · best #7

Top 10 average rating: ★ 4.3