CleanMax - Phone Cleaner
Overview
CleanMax - Phone Cleaner is a single-purpose utility developed by Nitrogen Cloudless. While many modern optimization apps bundle security tools and complex background engines, CleanMax is designed specifically as a storage cleaning and duplicate file management tool.
The application's core functionality relies on its Duplicate File Finder and Storage Analyzer systems. CleanMax scans the device's internal shared storage and connected SD cards to index and categorize redundant system cache, large download folders, and identical media files. To protect user data, CleanMax uses a user-directed deletion model: it displays the scan results for review, and no files are permanently removed without explicit user confirmation.
On the privacy front, Nitrogen Cloudless adopts a strong local-processing approach. CleanMax declares zero external data collection or transmission, meaning all file indexation and analysis are processed entirely on the local device. While the free version contains standard in-app advertisements, its lack of telemetry tracking makes it a lightweight and privacy-conscious option for managing system storage.
Pros & Cons
Strong Commitment to Data Privacy: Declares zero data collection, processing all storage scans locally on the device.
User-Controlled Deletion Model: Ensures personal files are safe by requiring explicit user confirmation before any data is removed.
Accurate Duplicate Detection: Uses file hashing to accurately identify and group duplicate photos, videos, and documents.
SD Card Compatibility: Extends scanning capabilities to external SD cards for comprehensive local storage management.
Minimal Memory Usage: Uses very little background memory, making it well-suited for older or resource-constrained devices.
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Intrusive In-App Ads: The free version contains frequent advertisements, which can occasionally slow down cleanups.
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No Advanced Security Tools: Focuses purely on storage management and lacks antivirus, network scanning, or VPN features.
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Permanent Deletions Only: Files are deleted permanently from local storage, without options to back them up to cloud storage first.
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Potential System Conflicts: Background cleanup tasks can sometimes conflict with pre-installed system cleaner utilities on certain OEM devices.
Download
Get it on Google Play 
Get it on App Store FAQs
Will CleanMax delete my photos automatically?
No, CleanMax indexes files and presents them for your review. No data is removed unless you manually confirm its deletion.
Does CleanMax collect user data?
According to its data safety declaration, the app collects zero user data, keeping all processing local to the device.
Can the app manage files on external storage?
Yes, the scanning engine can analyze both internal shared storage and connected external SD cards.
How does the duplicate finder detect identical files?
It scans file sizes, names, and metadata to identify identical copies of files, even if they are saved in different directories.
Why does the app show ads if it has a zero-data policy?
The developer uses standard ad placements to monetize the free app without collecting or selling personal user telemetry.
Hot Reviews
Users praise the application for its simple design, noting that it focuses on duplicate cleaning and storage management without cluttering the interface with unnecessary tools.
A common complaint focuses on the frequency of ads, which users note can disrupt cleanups and make the navigation menus harder to use.
Reviewers with storage-constrained devices highlight the app's small installation footprint and low memory usage as major advantages.
A few technical reviews note that the app's background processes can occasionally overlap or conflict with the device's pre-installed OEM cleanup tools.