App Showcase: Cleaner Master

What it does

Cleaner Master is a mobile utility designed to help users reclaim storage space on their phones. It scans for and helps remove various types of clutter, including similar or duplicate photos, large videos, incomplete contacts, and old calendar events. The app categorizes these files, allowing users to review and delete them in batches to optimize their device's performance and available memory.

Where it shines

The app's strength lies in its clear, singular focus. The main dashboard (00:37) immediately presents the four primary cleaning categories: Photos, Videos, Contacts, and Calendar. The scanning process (00:54) uses a pleasant, bubble-like animation that provides visual feedback on its progress. Once the scan is complete, the results are neatly organized (01:00), making it easy for users to see exactly what can be cleaned and how much space can be freed.

UX highlights

• Animated Onboarding: The app uses simple animated graphs during onboarding (00:12) to visually represent the benefits of cleaning, making abstract concepts like 'more space' feel more tangible.
• Direct Permission Gating: Each core feature on the dashboard, like 'Photos', directly triggers its required system permission prompt (00:38). This clearly links the action to the necessary permission.
• Categorized Results: After a scan, junk files are grouped into logical categories like 'Similar Videos' and 'Blurry Photos' (01:00), allowing for targeted cleanup.
• Batch Selection: The app allows users to select entire groups of similar files for deletion with a single tap (01:06), speeding up the cleaning process significantly.
• Visual Previews: Users can see thumbnails of the photos and videos identified for deletion, giving them confidence before they commit to deleting anything.
• Clear Space Savings: The app quantifies the potential space savings at the top of the results screen (01:00), reinforcing the core value proposition.

Monetization & growth

Cleaner Master employs an aggressive monetization strategy. A paywall is presented immediately after the short onboarding carousel (00:21). The offer is for '7-day access' at a low introductory price ($0.29), which then converts to a recurring weekly subscription ($9.99/week). The paywall also appears as a persistent interruption during the core cleaning flow (01:23), gating the final deletion step and creating friction for non-paying users.

Who it’s for

The app is primarily for users who are running low on phone storage and feel overwhelmed by the task of manually cleaning their files. It targets individuals who have accumulated years of photos and videos and are looking for a quick, automated solution to identify and remove duplicates or unnecessary media. Its simple interface makes it accessible even for less tech-savvy users.

Notes & opportunities

The primary point of friction is the aggressive paywall. Interrupting the user mid-task (01:23) can be frustrating and may lead to uninstalls. The app could test a model where the first clean is free to demonstrate its value concretely, which might build more trust and lead to higher long-term conversion rates. Additionally, the copy on the permission prompts (e.g., 00:38) is the standard system text; custom 'warm-up' screens could better explain why each permission is needed.