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ZRO — Back to zero. Nothing lost. Review

ZRO — Back to zero. Nothing lost. is a cleaning tool for Mac that identifies and removes unnecessary junk files while ensuring data integrity.

shipped Aug 18, 2026researchfreemium
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ZRO — Back to zero. Nothing lost. — product screenshot

Why it matters

1ZRO operates on macOS 14+ platforms.
2The tool offers a freemium pricing model, including a Free Sandbox Plan and Pro tiers starting at $2.99/month.
3ZRO ensures zero data retention and never trains on user data, as per its privacy policy.
4It provides an AI-based assistant for cleaning cache, duplicate, and large files.

About ZRO — Back to zero. Nothing lost.

Business Model
Subscription SaaS
Usage Pricing
$2.99/month per monthly subscription
Free Credits
First 500 MB free cleaning
Headquarters
Geneva, Switzerland
Funding
Bootstrapped
Platforms
macOS 14+
Target Audience
Mac users needing a cleaning tool

Pricing Plans

Free
$0 / forever
  • • Full scan, free forever
  • • First 500 MB cleaning free
  • • Large files & duplicates finder
  • • Trash-by-default
Pro
$2.99/mo
  • • Unlimited cleaning
  • • Scheduled auto-clean
  • • On-device AI
  • • Shield for exposing keys
Pro
$19.99/year
  • • Unlimited cleaning
  • • Scheduled auto-clean
  • • On-device AI
  • • Shield for exposing keys
Lifetime
€99 / once
  • • Lifetime access
  • • No renewals or price increases
  • • All updates included
  • • Two Macs covered

Cost Examples

  • • Unlocking the rest of the cleaning functionality costs $2.99/month.

Screenshots

overview

What is ZRO — Back to zero. Nothing lost.?

ZRO — Back to zero. Nothing lost. is a cleaning tool for Mac that enables Mac users to identify and remove unnecessary junk files while ensuring nothing is lost permanently. It performs a full scan to find cache, duplicate, and large files, allowing users to clean their system easily with an AI-based assistant. Additionally, ZRO, developed by MoonMath, functions as a sovereign privacy desktop application for P2P file transfer, encrypted messaging, AI camera detection (Camera Shield), and a private vault, emphasizing zero data retention and no training on user data.

features

Key Features of ZRO — Back to zero. Nothing lost.

ZRO — Back to zero. Nothing lost. integrates on-device AI intelligence to manage system cleaning and privacy functions. Its core features include automatic locking of app caches and trash-by-default cleaning. The platform ensures no telemetry or data collection, providing detailed item explanations and safety labels for user transparency. For system maintenance, it conducts a full scan to identify cache, duplicate, and large files, facilitating easy cleaning with an AI-based assistant. Beyond cleaning, ZRO offers P2P file transfer, encrypted ghost messaging, AI camera detection via Camera Shield, a private document vault, and AI-powered anti-OSINT for personal data removal and suppression through ZRO Trace.

  • On-device AI intelligence for cleaning and privacy.
  • Automatic locking of app caches.
  • Trash-by-default cleaning mechanism.
  • No telemetry or data collection, ensuring user privacy.
  • Detailed item explanations and safety labels for transparency.
  • Full scan to find cache, duplicate, and large files.
  • AI-based assistant for guided system cleaning.
  • P2P file transfer capabilities.
  • Encrypted ghost messaging for secure communication.
  • AI camera detection (Camera Shield) for privacy.
  • Private document vault for secure storage.
  • AI-powered anti-OSINT (ZRO Trace) for personal data removal.

use cases

Who Should Use ZRO — Back to zero. Nothing lost.?

ZRO — Back to zero. Nothing lost. is designed for individuals who prioritize digital privacy and seek efficient system maintenance for their Mac devices. Its dual functionality caters to users needing to optimize disk space and enhance system performance, as well as those requiring secure communication and data handling. The platform is particularly beneficial for developers and teams working on sensitive projects requiring private AI inference, ensuring code and data privacy during AI operations.

  • Mac users seeking to improve disk cleanup and remove unnecessary cache files.
  • Individuals needing to find and eliminate duplicate files to free up storage.
  • Users aiming to enhance Mac performance through automated cleaning processes.
  • Individuals prioritizing digital privacy for P2P file transfer and encrypted messaging.
  • Developers and teams requiring a secure environment for private AI inference, especially for coding agents.

how to use

How to Use ZRO — Back to zero. Nothing lost.

To begin using ZRO — Back to zero. Nothing lost., users can download the application for macOS 14+ from its official website. The tool provides a Free Sandbox Plan with free credits to test its functionalities before committing to a paid tier.

  • 1Download and install the ZRO application on a macOS 14+ device.
  • 2Launch the application to access its cleaning and privacy features.
  • 3Initiate a full scan to identify cache, duplicate, and large files.
  • 4Utilize the AI-based assistant to review and select files for removal.
  • 5Engage privacy features such as P2P file transfer or encrypted messaging as needed.
  • 6Explore ZRO Trace for AI-powered anti-OSINT capabilities.

pricing

ZRO — Back to zero. Nothing lost. Pricing & Plans

ZRO — Back to zero. Nothing lost. operates on a freemium model, offering a Free Sandbox Plan that includes free credits for initial testing without requiring a credit card. For expanded functionality, individual plans are available. The Pro plan is priced at $2.99 per month or $19.99 when billed annually. A Lifetime license is also available for a one-time payment of €99. The Free tier allows for the first 500 MB of cleaning without cost, with unlocking further cleaning functionality costing $2.99/month.

  • Free: $0 (includes free credits for testing, first 500 MB cleaning)
  • Pro: $2.99/month (monthly subscription)
  • Pro: $19.99/year (annual subscription)
  • Lifetime: €99 (one-time purchase)

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Pros

  • +On-device AI intelligence for efficient cleaning and privacy.
  • +Zero data retention and no training on user data, ensuring high privacy.
  • +Comprehensive scanning for cache, duplicate, and large files.
  • +AI-based assistant simplifies the cleaning process for users.
  • +Includes P2P file transfer, encrypted messaging, and a private document vault.
  • +Freemium model with a functional free tier and affordable paid options.

Cons

  • −Primarily focused on macOS 14+, limiting availability for other operating systems.
  • −While comprehensive for cleaning, it does not include malware protection like some competitors.
  • −The dual identity as both a Mac cleaner and an AI inference platform can be confusing for new users.
  • −The AI-powered anti-OSINT (ZRO Trace) feature's effectiveness may vary depending on data exposure.

Similar Tools

ZRO — Back to zero. Nothing lost. vs Competitors

ZRO — Back to zero. Nothing lost. distinguishes itself through its integrated AI-based assistant, comprehensive junk file identification, and robust privacy features, including a unique shared memory system for AI agents. Its core competitive advantage lies in providing private inference for coding agents, ensuring zero data retention and no training on customer data.

1
OnyX↗

OnyX is a multi-function utility that allows you to verify the startup disk and the structure of its system files, run miscellaneous tasks of system maintenance, configure hidden parameters of the Finder, Dock, Safari, and some Apple applications, and delete caches.

OnyX offers a broader range of system maintenance and customization options beyond just cleaning, but its interface is less guided than ZRO's AI-based assistant, requiring more user knowledge to navigate its features effectively.

2
AppCleaner↗

AppCleaner helps you uninstall unwanted applications completely by finding and deleting all associated files, including preference files, caches, and support files.

While ZRO focuses on general system junk, AppCleaner excels specifically at thorough application uninstallation, ensuring no leftover files remain. It doesn't offer the broader system scan for duplicates or large files that ZRO does.

3
Disk Inventory X↗

Disk Inventory X is a disk usage utility that shows the sizes of files and folders in a special graphical way called a 'treemap', making it easy to identify large files and folders taking up space.

Disk Inventory X provides a powerful visual representation of disk usage, which is excellent for manually identifying large files, whereas ZRO automates the discovery of various junk files including duplicates and caches. Disk Inventory X requires more manual decision-making for deletion.

4
CleanMyMac X↗

CleanMyMac X offers a comprehensive suite of cleaning, optimization, and protection tools, including junk removal, malware protection, and performance monitoring.

CleanMyMac X provides a more extensive feature set than ZRO, including malware removal and system optimization, but it comes with a recurring subscription cost after its free trial, unlike ZRO's freemium model which might offer more free functionality for basic cleaning.

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