Cellebrite UFED, GrayKey and Oxygen Forensic: A Comparison of Mobile Forensic Tools

Quick answer: Three tool families stand out in mobile forensics. Cellebrite UFED is the industry's de facto leader with the broadest device support and unlock/extraction capacity, and it combines extraction and analysis in a single ecosystem. GrayKey (now under Magnet Forensics) is a narrow but deep tool focused especially on iPhone passcode unlocking and deep extraction. Oxygen Forensic Detective shows its strength not so much in unlocking but in analyzing the extracted data, cloud data, app interpretation and cross-correlation. None is a magic box that opens every device: supported models, OS versions and patch levels constantly change, and these tools are licensed only to law enforcement and authorized forensic labs. The right tool depends on the device to be examined and the goal.

The mobile device is at the center of most investigations today, because a phone carries a person's messages, location, photos and app data. But modern phones are protected by strong encryption; so reaching the data requires special tools. We explained the general framework of these tools and why modern encryption makes the job harder in data recovery from a locked or encrypted phone. We addressed what Cellebrite UFED is on its own and its institutional use in Turkey in what is Cellebrite UFED and Cellebrite UFED Turkey institutions licensing. This article puts the three major tools side by side and honestly compares their differences.

First the concept: extraction types

Before comparing the tools, you need to understand the three basic data extraction levels of mobile forensics, because a tool's "strength" mostly depends on which level it can do.

  • Logical extraction: Data the device exposes through its normal interface, that is, contacts, messages, call logs, some app data. The easiest but most superficial level; usually does not recover deleted data.
  • File system extraction: Accesses the device's file system and takes app databases, caches and more detail. Deeper than logical, can reach some deleted records (for example database free space).
  • Physical extraction: A bit-by-bit copy of the device memory. The deepest level, recovers deleted data best, but on modern encrypted devices it is encrypted even if obtained without the passcode. So physical extraction has become harder on most current devices.

A tool's value is measured by which of these levels it can reach on the target device, at which version.

Cellebrite UFED: the broadest scope

Cellebrite UFED is the most widespread mobile forensic platform with the broadest device support. It offers extraction methods for many Android and iOS devices, plus old and niche devices; it includes unlock capabilities for specific device/version combinations. The Cellebrite ecosystem provides an integrated flow between extraction (UFED) and analysis (Physical Analyzer and its successors), meaning you can take the data and examine it in the same environment.

Its strength is scope and integration: it supports the most devices and offers an end-to-end workflow. Its limit is the same as every tool: the latest devices with a strong passcode cannot always be opened, and the supported methods constantly change with the manufacturer's security updates.

GrayKey: narrow but deep, iPhone focused

GrayKey is a tool developed by Grayshift and later brought under Magnet Forensics, specialized especially in iPhone passcode unlocking and deep data extraction. It does not target as broad a device range as Cellebrite; it concentrates its strength on depth and unlock capability on specific (especially Apple) devices. It also has Android support, but GrayKey is mostly mentioned in the iPhone context.

Its strength is deep access and a passcode-cracking focus on the devices it targets. Its limit is again version dependency: a method that works on one iOS version may be closed by the next security update, which means a constant race between the tool and the manufacturer. GrayKey is also typically provided only to law enforcement and authorized bodies.

Oxygen Forensic Detective: strong in analysis

Oxygen Forensic Detective shows its strength not so much in unlocking but in making sense of the data. It takes data extracted from a device or backups, interprets hundreds of apps, collects data from cloud accounts (with proper authorization), and visualizes interpersonal relationships, location history and timelines. So where Oxygen stands out is not "how do I get the data" but "how do I connect and understand the data I got."

Its strength is broad app support, cloud extraction and analytical visualization. In practice many labs do the extraction with one tool (for example Cellebrite or GrayKey) and run the deep analysis with a tool like Oxygen or Magnet AXIOM; the tools are complementary as much as they are rivals.

Side-by-side comparison

Tool Standout strength Typical focus Limit
Cellebrite UFED Broadest device support, integrated extract+analyze Wide Android + iOS range Current device with strong passcode not always opened
GrayKey iPhone passcode unlock, deep extraction Especially Apple devices Version dependent, narrow range
Oxygen Detective Analysis, app interpretation, cloud Making sense of extracted data Unlock power is secondary

This table is true for a moment; the reality of the industry is that these capabilities constantly change. So the question "which is best" has no single right answer: it depends on the device to be examined, the OS version and the goal (unlocking, broad extraction, or deep analysis).

Authorization and law: the most critical point

All of these tools are for authorized use only. Cellebrite, GrayKey and Oxygen are not sold to individual consumers; they are licensed to law enforcement, forensic labs and authorized bodies. Examining a device with these tools can be done only at the request of the device owner or an authorized body (court, prosecutor), with written authorization. Otherwise it is both unlawful and destroys the evidentiary value of the data obtained. We addressed the legal framework of the forensic process, the chain of custody and the KVKK dimension in the digital forensics process, KVKK and chain of custody.

At DSET our approach is honesty: which tool and which level a device can be examined with depends on the device model and version and cannot always be guaranteed in advance. The device is identified first, a realistic expectation is given, and the work is done only within the bounds of authorization.

Frequently Asked Questions

Is Cellebrite or GrayKey better? There is no single answer. Cellebrite offers the broadest device support and an integrated flow; GrayKey goes deeper especially in iPhone passcode unlocking. The right choice depends on the target device and the goal.

Does Oxygen Forensic unlock? Oxygen's real strength is not unlocking but interpreting and analyzing extracted data. Many labs do the extraction with another tool and run the analysis with Oxygen.

Can I buy these tools personally? No. Cellebrite, GrayKey and Oxygen are for institutional and authorized use; they are licensed to law enforcement and forensic labs and are not sold to individual consumers.

Do these tools open every phone? No. Supported devices, OS versions and patch levels constantly change; the latest devices with a strong passcode usually cannot be opened.

Sources

For an honest assessment of which tool and method, at which level, a device can be examined with, contact DSET.