Standards | LegitApp | Your Trusted Partner in Luxury Authentication

An Objective, Rigorous, and Multi-Cross-Verified Third-Party Authentication System

LegitApp Authentication Standards

Last Updated: June 4, 2026

LegitApp is committed to establishing the industry's leading benchmark for third-party authentication. Recognizing the critical importance of authentication results to transactional trust, we have constructed a rigorous, multi-cross-verified authentication system to ensure the objectivity and accuracy of every conclusion.
Core Authentication Mechanism
Every item submitted for authentication is subject to independent inspection by at least two senior human authenticators and LegitApp's proprietary AI model.
  • Direct Issuance of Results: When the determinations of all human authenticators perfectly align with the AI model's analytical results, the system will directly issue the final authentication conclusion to the user.
  • Dispute Resolution & Joint Review Mechanism: Should any divergence of opinion arise among human experts, or between human experts and the AI model, the order will automatically trigger an internal escalation procedure, initiating a joint review by a panel of senior authentication experts. A final result will only be issued upon the panel reaching an absolute consensus following in-depth deliberation; if a definitive conclusion remains unattainable, the result shall be deemed INCONCLUSIVE.
  • Independent Re-evaluation: Within 24 hours following the issuance of an authentication result, our independent quality control and re-evaluation team conducts a secondary review of the order to ensure the absolute stability of our authentication quality.
Through this extreme rigor, we strive to push our accuracy rate toward 100%. As of May 1, 2026, based on over 1 million historical authentication records, our comprehensive accuracy rate has reached 99.987%.
Statement of Compliance and Independence
Our authentication standards are established upon a massive internal database of authentic products, conducting in-depth comparisons between the item photographs provided by the user and the materials, details, and craftsmanship of official brand-released authentic products. LegitApp operates as a completely independent third-party authentication service institution and holds no affiliation, sponsorship, or partnership with any brand owners. Within the legal framework, only the brand owner possesses the absolute right to issue official declarations of authenticity. LegitApp's authentication results serve as independent third-party professional opinions for the reference of users and trading platforms.
Limitations of Image-Based Authentication

LegitApp provides authentication services based on digital imagery. The accuracy of the conclusion is directly contingent upon the quality and completeness of the photographs provided by the user. All authentication conclusions are made based on, and solely on, the image data currently provided by the user.

Special Declaration: For watches, beauty/skincare products, and electronic products, our authentication services are conducted solely based on the photographs of the product's external physical features provided by you. For goods involving internal liquids, pastes, chemical compositions, or internal mechanical, electronic components, and software systems, image-based authentication can only verify the external physical packaging or casing.

Authentication Conclusion Standards

AUTHENTIC

What is the standard for an "AUTHENTIC" result?

Conclusion: All provided photographic details fully conform to the craftsmanship characteristics of an authentic product.

We will only issue an "AUTHENTIC" conclusion when our senior authenticators and AI model have conducted a deep analysis of all provided photos and found no replica characteristics, logical conflicts, or craftsmanship flaws. This signifies that, based on strict comparison with official authentic products, the item highly matches authentic characteristics within the scope displayed.

Compliance Handling for Parts Replacement and Repair (General):

We acknowledge that some items may undergo legitimate maintenance or repair during long-term use. If the replaced components do not bear the brand Logo, do not infringe upon the original brand's intellectual property rights, and are absolutely not the core main body of the item, we may still determine the item as AUTHENTIC overall, while noting "Non-Original Parts" in the report.

  • Handbag Category Exclusive Rules

    This service only performs photo-based authenticity verification on the main body of the product, excluding condition evaluations (such as vachetta leather discoloration, repainting/touch-ups, edge paint wear/repair, and odor) and accessory completeness. The authentication is strictly based on the parts shown in the images uploaded by the user; unphotographed areas will not be authenticated. If the main body of the product and core authentication points bearing brand logos are genuine, the item is determined as "AUTHENTIC". Non-original, non-core components without brand logos (such as dust bags, straps, etc.) or minor maintenance do not affect the authentic determination, and will be noted in the report upon successful identification. However, cases involving extensive non-original repainting/restoration, replaced core leather/accessories, abnormal mixing/matching, aftermarket splicing, DIY modifications, or mismatched serial numbers and origin labels will be determined as "INCONCLUSIVE".

  • Watch Category Exclusive Rules

    In the watch market, aftermarket diamonds/gemstones (DIY modifications) or parts replacements are common occurrences. For the watch category, the final authentication result primarily depends on the photographic inspection of the case and movement. If you can safely open the case, providing photos of the movement and shock absorber will greatly facilitate a more in-depth authentication; if no movement photos are provided, our authentication conclusion will be based solely on the external case. For other non-core components of the watch, including but not limited to the dial, clasp, hand shafts, hand tips, crown, and aftermarket diamonds/gemstones, the presence of non-original or aftermarket parts will not affect the overall "AUTHENTIC" determination of the watch. Although the aforementioned non-original parts do not affect the overall authentic conclusion, to ensure absolute transactional transparency, our authenticators will explicitly identify and note all non-original or aftermarket components in the authentication report.

  • Beauty/Skincare Category Exclusive Rules

    For cosmetics and skincare products, our image-based authentication service only verifies the craftsmanship characteristics of the product's external packaging and container. Due to the physical limitations of image authentication, we cannot authenticate the internal chemical composition, texture, or contents of the product through photographs. Therefore, an "AUTHENTIC" conclusion for such products only represents that its external packaging and container conform to official authentic characteristics, and does not encompass a guarantee of authenticity for the actual internal substances.

  • Electronics Category Exclusive Rules

    For electronic products, our image-based authentication service only verifies the craftsmanship of the product's external physical features, such as the casing, screen, ports, and labels. Due to the physical limitations of image authentication, we cannot authenticate the internal hardware (e.g., chips, motherboards), system software, or actual operational functionality of the device through photographs. Therefore, an "AUTHENTIC" conclusion for such products only represents that its external features conform to official authentic craftsmanship, and does not encompass a guarantee of authenticity for the internal hardware configuration or software system.

REPLICA

What is the standard for a "REPLICA" result?

Conclusion: Any provided photograph contains replica characteristics (Zero Tolerance Principle).

Except for the explicitly exempted special circumstances mentioned above (e.g., specific non-original watch parts), LegitApp adopts a "zero tolerance" attitude towards counterfeit products. If our authenticators or AI system identify any replica elements in the provided photos (e.g., counterfeit zippers, straps, or other core/ancillary accessories), the overall authentication result for the item will be directly classified as a "REPLICA".

For cases determined as a "REPLICA", our experts will explicitly mark a cross on the photos of the problematic areas as a warning. Concurrently, our AI system will output a Replica Index, quantitatively analyzing the item's craftsmanship deviations to help users intuitively understand its risk level.

INCONCLUSIVE

Rigor Above All: The Principle of Quality over Quantity

When the following situations occur, the system will issue an INCONCLUSIVE result:

  1. 1.

    Insufficient Data: The provided pictures are insufficient in quantity, poorly lit, blurry, or fail to cover key authentication feature points.

  2. 2.

    Severe Wear or Aging: The item has suffered excessive wear due to long-term use, causing key authentication feature points (such as engravings, Logos, stitching, wash tags, etc.) to completely fade or be lost. Lacking sufficient identifiable features for comparison, we cannot provide an accurate conclusion.

  3. 3.

    Joint Review Yields No Result: When a divergence of opinion exists between the AI and human experts, the order enters a joint review by the expert panel. If an absolute consensus still cannot be reached after in-depth deliberation, we will issue an inconclusive result.

  4. 4.

    Deep Customization or Unofficial Models: The item may be spliced or modified from authentic materials, but that specific model or style has never been officially released by the brand. Lacking an official reference standard, we cannot provide a definitive conclusion.

  5. 5.

    Extremely High Value or Rare Items: For top-tier items of extremely rare materials or exceedingly high value, image-based authentication has inherent limitations. To ensure absolute rigor, we only provide offline physical authentication services for such items in specific regions.

  6. 6.

    Unreleased or Newly Released Items: The item you submitted (e.g., unreleased sneakers) currently lacks sufficient official data support. For newly launched products, our database typically requires 2-3 business days to establish a comprehensive authentic material archive. During this period, the system may issue an inconclusive result.

  7. 7.

    High-Risk Styles with Insufficient Authentication Features: A very small minority of specific styles from specific brands inherently lack sufficient anti-counterfeiting feature points for comparison and verification in their design or craftsmanship. For these exceedingly rare high-risk items that cannot be cross-verified through conventional feature points, out of rigorous consideration, we will process them as inconclusive.

User Protection Mechanism:

If the final result of your authentication order is "INCONCLUSIVE", the tokens consumed for this authentication will be fully refunded to your account wallet, and you will not bear any financial loss.

Frequently Asked Questions (FAQ)
What exactly is LegitApp's authentication process?
Every order goes through "AI Preliminary Screening + Independent Inspection by at least two Senior Authenticators." If opinions are completely unanimous, a result is issued; if there is a divergence, it triggers a joint review by the expert panel, and a result is issued upon reaching a consensus. Within 24 hours after the result is issued, an independent quality control team will also conduct a secondary re-evaluation.
Why is my authentication result "INCONCLUSIVE"?
Common reasons include: unclear photos/missing key details, severe wear of the item leading to the loss of key authentication features, the expert panel remaining unable to reach a consensus after joint review, unreleased new products, unofficial custom releases, extremely high-value rare items requiring offline inspection, and a very small number of high-risk styles lacking sufficient anti-counterfeiting features. Based on the principle of rigor, we will issue an inconclusive result in the above situations and automatically process a refund for you.
If my watch has aftermarket diamonds or a non-original dial, can it still be authenticated as AUTHENTIC?
Yes. The authentication conclusion for watches is primarily based on the case and movement. If components such as the dial, clasp, crown, hands, or aftermarket diamonds are non-original, it will not affect the overall "AUTHENTIC" determination of the watch. However, to ensure transactional transparency, our authenticators will explicitly note these non-original components in the report. If you do not provide movement photos, our conclusion will be based solely on the external case.
Can you authenticate the ingredients inside cosmetics or the internal hardware of electronic products?
No. For beauty/skincare products, watches, and electronic products, our authentication conclusions are based solely on the external physical features of the products (e.g., external packaging, containers, casings, screens, etc.). Due to the limitations of image authentication, we cannot verify the authenticity of internal chemical compositions, contents, internal mechanical structures, or electronic hardware and software systems through photographs.
If the insoles of a pair of shoes are fake, but the shoes themselves are real, what will the result be?
The result will be "REPLICA". Except for explicit exemption rules for specific categories like watches, LegitApp enforces a strict zero-tolerance policy. As long as the item submitted for authentication contains any replica components, the overall result will be determined as a replica.
Disclaimer and Legal Protection Clauses
  1. 1. Nature of Service and "As Is" Provision: The authentication results provided by LegitApp solely represent independent professional opinions derived from the images provided by the user and the platform's existing database, and do not constitute official authentication conclusions or warranties with legally binding force. This service is provided on an "as is" basis. To the maximum extent permitted by law, LegitApp makes no statutory warranties, express or implied.

  2. 2. Limitation of Liability: Except for the compensation clauses explicitly stipulated in LegitApp's separately published Financial Guarantee policy, LegitApp and its affiliates, employees, and authenticators shall not be held liable for any direct, indirect, incidental, special, or punitive damages (including but not limited to loss of profits, business interruption, or depreciation of item value) arising from the use of this service or reliance upon the authentication results.

  3. 3. User Integrity and Image Authenticity Obligations: Users must warrant that all submitted images are authentic, original photographs of the item, free from any alteration, cropping, or forgery by image editing software. Should the system or authenticators discover that a user has engaged in fraud, image splicing (submitting mixed photos of different items), intentional concealment of flaws, or provision of false materials, LegitApp reserves the right to unilaterally cancel the authentication result, refuse a refund, permanently suspend the violating account, and pursue legal liabilities.

  4. 4. Prevention of Malicious Testing and Abuse: LegitApp strictly prohibits any form of malicious testing or abuse of platform services. The platform reserves the right to refuse service to accounts that deliberately exploit platform rule loopholes or frequently submit known replicas to probe authentication standards.

  5. 5. Data Usage Authorization: For the purpose of continuously improving authentication accuracy and optimizing AI models, the user agrees that LegitApp may, on the premise of anonymizing personal privacy information and sensitive data, collect and utilize the submitted item photographs and related information for internal database construction and model training.

  6. 6. Policy Modification and Right of Final Interpretation: LegitApp reserves the right to modify and update these authentication standards and related disclaimer clauses at any time. The updated clauses shall take effect immediately upon publication on the official platform. LegitApp holds the right of final interpretation regarding these authentication standards.

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