FACE SORTER PRO ULTIMATE
End-User License Agreement & Terms of Service
Developed by Lemwil
Last Updated: February 25, 2026
Please read this End-User License Agreement and Terms of Service (collectively, this "Agreement") carefully before clicking "I Agree," purchasing, downloading, installing, or using Face Sorter Pro Ultimate (the "Software").
1. Interpretation and Definitions
Words with initial capital letters have the meanings defined below. These definitions apply whether used in singular or plural form.
"Agreement" — This End-User License Agreement and Terms of Service between You and the Company.
"Company" (referred to as "Lemwil," "We," "Us," or "Our") — Lemwil, contactable at info@lemwil.com.
"Software" — Face Sorter Pro Ultimate, including all updates, enhancements, and related documentation, licensed for the price of $19.99 USD (or such other amount as displayed at purchase).
"You" — The individual or entity accessing or using the Software.
"Device" — Any computer or device on which the Software is installed or used.
"Biometric Data" — Facial recognition encodings (128-dimensional numerical vectors) derived from photographs and used to identify individuals. These are mathematical representations of facial geometry and cannot be used to reconstruct the original photograph.
"Configuration File" — The file named config.json (GPU version) or config_cpu.json (CPU version) stored in the Software's Data Directory, which contains user settings, preferences, and Biometric Data.
"Data Directory" — The folder located at %LOCALAPPDATA%\FaceSorterPro (typically C:\Users\{username}\AppData\Local\FaceSorterPro) where the Software stores all user-generated data, including configuration files, crash logs, and undo logs.
2. Acknowledgment
By clicking "I Agree," purchasing, installing, or using the Software, You agree to be bound by this Agreement. If You do not agree, do not purchase, install, or use the Software.
You acknowledge and agree that the Software performs operations on Your image files, including potential moving or copying of files, which may carry a risk of data alteration or loss if not used carefully.
IMPORTANT: We strongly urge and recommend that You make complete backups of all Your data, image files, and any relevant storage locations before using the Software. Failure to back up Your data is at Your own risk, and Lemwil shall have no responsibility for any loss, corruption, or unintended modification of Your files resulting from use of the Software.
This Agreement is solely between You and Lemwil. The Software processes all images locally on Your Device—no data is uploaded to any server or third party.
3. License Grant
Lemwil grants You a revocable, non-exclusive, non-transferable, limited license to install and use the Software on Your Devices strictly for personal or internal business purposes, in accordance with this Agreement, upon payment of the applicable license fee ($19.99 USD or as otherwise stated).
4. License Restrictions
You agree not to:
Copy, modify, distribute, sell, rent, lease, sublicense, or commercially exploit the Software.
Reverse engineer, decompile, disassemble, or derive source code from the Software.
Remove or alter any copyright, trademark, or proprietary notices.
Use the Software for any illegal purpose or in violation of applicable laws.
Use the Software to conduct unauthorized surveillance or monitoring of individuals.
Process photographs of individuals without obtaining any consent required by applicable law.
5. Intellectual Property
The Software and all related intellectual property rights remain the exclusive property of Lemwil. No ownership is transferred to You. The Software incorporates open-source libraries (dlib, OpenCV, face_recognition, MediaPipe, Pillow, pillow-heif, rawpy) used under their respective licenses. These libraries are the property of their respective authors.
6. Privacy, Data Processing, and Biometric Data
6.1 Local Processing Only
All processing—including face detection, encoding, sorting, and duplicate detection—occurs entirely on Your Device. The Software makes zero external network connections. No data of any kind (including Biometric Data, photographs, analytics, telemetry, or usage metrics) is transmitted to Lemwil, third-party servers, or any external service.
6.2 Biometric Data Collection and Storage
When You use the "Add People" feature, the Software generates Biometric Data in the form of facial recognition encodings derived from photographs You provide. These encodings are 128-dimensional numerical vectors—mathematical representations of facial geometry. They cannot be used to reconstruct the original photograph.
Biometric Data is stored locally on Your Device in the Configuration File located in the Data Directory (%LOCALAPPDATA%\FaceSorterPro). This data persists between sessions so that registered faces are retained when the Software is closed and reopened.
6.3 What Is Stored
The Configuration File contains:
Names You assign to registered individuals
Facial recognition encodings associated with each named individual
Source folder paths and scan preferences
EULA acceptance status and compute device settings
The Configuration File does NOT contain:
Original photographs or copies of Your images
Image metadata (EXIF data, GPS coordinates, timestamps, camera information)
Thumbnails or image previews
Any data from other applications on Your Device
Crash Logs
The Software maintains crash log files (crash_log_gpu.txt and crash_log_cpu.txt) in the Data Directory. These files contain technical error information generated locally on Your Device to assist with troubleshooting. They do not contain Biometric Data, photographs, or personal information beyond file paths that may appear in error messages. Crash logs are never transmitted externally.
Temporary Session Data
During an active sorting session, the Software may create a temporary file named undo_log.json in the Data Directory. This file contains:
Source and destination file paths for sorted photographs
Sorting mode and timestamp information
This file is used solely to enable the "Undo Sort" feature. It persists between sessions so that a sort can be undone even after closing and reopening the Software. It is automatically deleted after a successful undo operation or when a new sort is started (with user confirmation).
The undo_log.json file does NOT contain:
Biometric Data or face encodings
Photograph contents, thumbnails, or image data
Personal names (except as they may appear in folder path names You created)
6.4 User Control and Deletion of Biometric Data
You have full control over Your Biometric Data at all times:
Individual Removal: Click the "x" button next to any person's name to permanently delete that individual's name and all associated Biometric Data from the Configuration File.
Full Deletion: Click the "Clear List" button to permanently delete all registered faces and associated Biometric Data from the Configuration File.
Manual Deletion: Delete the Configuration File from the Data Directory (%LOCALAPPDATA%\FaceSorterPro) to remove all stored settings and Biometric Data. You may also delete the entire FaceSorterPro folder to remove all data including crash logs and undo logs.
Upon deletion by any of the above methods, the Biometric Data is permanently and irrecoverably removed. Lemwil does not retain, back up, or have access to any copy of Your Biometric Data.
6.5 Data Storage Location
The Software stores all user-generated data in the Data Directory located at %LOCALAPPDATA%\FaceSorterPro (typically C:\Users\{username}\AppData\Local\FaceSorterPro). This is the standard Windows location for application data and ensures reliable operation across all installation methods, including the Microsoft Store. The Software does not store user data in the Windows Registry, cloud services, or any remote location. All persistent user data resides exclusively within the Data Directory on Your local Device.
6.6 No Analytics or Telemetry
The Software contains no analytics, telemetry, crash reporting, update checking, license validation, or any other form of external communication. This can be independently verified by monitoring network traffic while the Software is running.
6.7 Your Responsibilities
You are solely responsible for:
Obtaining any required consent from individuals whose photographs are processed by the Software.
Complying with all applicable biometric data privacy laws and regulations in Your jurisdiction (including but not limited to BIPA, GDPR, CCPA, and similar laws).
Securing access to the Device on which the Software and Data Directory are stored.
Deleting Biometric Data when it is no longer needed or upon request of the individuals whose data has been processed.
7. Acceptable Use
You agree to use the Software only for lawful purposes. You shall not use the Software to:
Conduct unauthorized surveillance, stalking, or monitoring of any individual.
Process images in violation of any individual's reasonable expectation of privacy.
Violate any applicable local, state, national, or international law or regulation.
Engage in any activity that infringes the rights of others, including intellectual property and privacy rights.
Lemwil reserves the right to terminate Your license if the Software is used in violation of this Section.
8. Facial Recognition Disclaimer
Facial recognition technology is not 100% accurate and may produce false positives or false negatives due to lighting, angles, image quality, or other factors. Results are provided for informational and sorting purposes only. Lemwil is not responsible for any misidentification, privacy issues, or decisions You make based on Software output. Always verify results manually before taking any action (e.g., deletion of originals).
The Software's sorting features, including "King of the Hill" mode, may move or reorganize files on Your Device. You are solely responsible for maintaining backups of Your data before enabling any mode that moves files.
While Lemwil is committed to protecting user privacy and designs the Software to minimize data retention, no software is guaranteed to be free of defects. In the unlikely event of a crash, unexpected termination, or software bug, temporary session files (such as undo_log.json) may persist in the Data Directory. You may manually delete any files in the Data Directory at any time. Lemwil cannot guarantee the absence of all software bugs but is committed to promptly addressing any reported privacy-related issues.
9. Third-Party Libraries
The Software uses the following open-source libraries for local processing only. No data is shared with these projects or their maintainers:
dlib — Face detection and facial landmark prediction (CNN model)
face_recognition — Face encoding generation and comparison
OpenCV — Image processing, rotation, and format handling
MediaPipe — Fast face pre-detection (hybrid engine mode)
Pillow (PIL) — Image loading, resizing, and thumbnail generation
pillow-heif — HEIC/HEIF image format support (iPhone photos)
rawpy — RAW camera file decoding (CR2, CR3, NEF, ARW, DNG, and other RAW formats)
All libraries run locally on Your Device. None transmit data externally when used by this Software. These libraries are subject to their own respective open-source licenses.
10. No Warranties
THE SOFTWARE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITH ALL FAULTS AND WITHOUT WARRANTY OF ANY KIND. TO THE MAXIMUM EXTENT PERMITTED BY LAW, LEMWIL DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT, ACCURACY OF FACIAL MATCHING, ERROR-FREE OPERATION, VIRUS-FREE, OR UNINTERRUPTED USE.
Lemwil does not warrant that the Software will meet Your requirements, achieve intended results, or be compatible with all hardware/software. You assume all responsibility for backing up Your data prior to use, as the Software may interact with and potentially alter file locations or contents.
Some jurisdictions do not allow exclusion of implied warranties, so some limitations may not apply to You—but they apply to the fullest extent permitted by law.
11. Limitation of Liability
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL LEMWIL BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, PUNITIVE, OR EXEMPLARY DAMAGES (INCLUDING LOSS OF PROFITS, DATA, GOODWILL, BUSINESS INTERRUPTION, PERSONAL INJURY, PRIVACY VIOLATIONS, OR OTHER LOSSES) ARISING FROM OR RELATED TO USE (OR INABILITY TO USE) THE SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Lemwil's total aggregate liability to You under this Agreement shall not exceed the amount You actually paid for the Software license ($19.99 USD), or $100 USD if no payment was made or if the amount paid is less than $100.
This limitation applies regardless of legal theory (contract, tort, negligence, strict liability, etc.).
Some jurisdictions prohibit limiting liability for certain damages, so this may not apply fully to You—but it applies to the maximum extent enforceable.
12. Indemnification
You agree to indemnify, defend, and hold harmless Lemwil (and its officers, employees, agents) from any claims, damages, losses, liabilities, costs (including reasonable attorneys' fees) arising from:
Your use of the Software;
Violation of this Agreement or any law;
Violation of third-party rights (e.g., privacy claims related to images You process);
Failure to obtain required consent for biometric data processing;
Any claim arising from Your failure to comply with applicable biometric data privacy laws.
13. Term and Termination
This Agreement remains effective until terminated. Lemwil may terminate it at any time for any reason (with or without notice). You may terminate by uninstalling and deleting the Software.
Upon termination, You must cease all use of the Software, delete all copies, and delete the Data Directory (%LOCALAPPDATA%\FaceSorterPro) containing any Biometric Data and Configuration Files.
14. Governing Law
This Agreement is governed by the laws of the State of Connecticut, United States, without regard to conflict of law principles. Any disputes shall be resolved exclusively in courts located in Danbury, Connecticut.
15. Changes to this Agreement
Lemwil may update this Agreement from time to time. Material changes will be notified (e.g., via in-app notice or email). Continued use of the Software after changes constitutes acceptance of the updated Agreement.
16. Entire Agreement
This Agreement constitutes the entire understanding between You and Lemwil regarding the Software and supersedes all prior agreements, representations, and understandings.
17. Severability
If any provision of this Agreement is found to be unenforceable or invalid, that provision shall be limited or eliminated to the minimum extent necessary, and the remaining provisions shall remain in full force and effect.
18. Contact Us
For questions about this Agreement, the Software, or data handling practices:
Email: info@lemwil.com
PRIVACY POLICY
Face Sorter Pro Ultimate
Developed by Lemwil
Effective Date: February 25, 2026
1. Introduction
Lemwil ("we," "us," or "our") is committed to protecting your privacy. This Privacy Policy explains how Face Sorter Pro Ultimate (the "Software") handles your data, including biometric information derived from photographs.
Key Principle: Face Sorter Pro Ultimate is a 100% offline application. It makes zero external network connections. No data of any kind—including personal data, biometric data, photographs, analytics, or telemetry—is ever transmitted to Lemwil, third-party services, or any external server.
2. What Data the Software Processes
2.1 Biometric Data (Face Encodings)
When you use the "Add People" feature, the Software analyzes photographs you provide and generates facial recognition encodings. These encodings are 128-dimensional numerical vectors—mathematical representations of facial geometry. They cannot be used to reconstruct the original photograph or image of a person's face.
2.2 User-Assigned Names
You assign a name (e.g., "Mom," "John") to each set of face encodings. These names are chosen entirely by you and are used only to label sorted output folders.
2.3 Application Settings
The Software stores your configuration preferences, including source folder paths, scan settings, compute device selection, and EULA acceptance status.
2.4 What the Software Does NOT Collect
Photographs or copies of your images
Image metadata (EXIF data, GPS coordinates, timestamps, camera info)
File contents beyond what is needed for face detection during processing
Browsing history, keystrokes, or system information
Analytics, usage statistics, or telemetry of any kind
Any data from other applications on your device
3. How and Where Data Is Stored
All persistent data is stored locally on your device in the Data Directory:
Location — %LOCALAPPDATA%\FaceSorterPro
(typically C:\Users\{username}\AppData\Local\FaceSorterPro)
The Data Directory contains the following files:
Configuration Files:
config.json (GPU version) — Face encodings, assigned names, folder paths, app settings
config_cpu.json (CPU version) — Same as above, for the CPU version
Format — Standard JSON text file (human-readable)
Crash Logs:
crash_log_gpu.txt — Technical error information from the GPU version
crash_log_cpu.txt — Technical error information from the CPU version
These files contain only technical error details for troubleshooting. They do not contain biometric data or photographs.
Undo Log:
undo_log.json — File paths used by the "Undo Sort" feature (see below)
The Software does not store data in the Windows Registry, cloud services, or any remote location. All user data resides exclusively within the Data Directory on your local device.
Undo Log — undo_log.json
During and after a sorting session, the Software maintains a file named undo_log.json in the Data Directory. This file contains file paths used by the "Undo Sort" feature and persists between sessions so that a sort can be undone even after closing and reopening the Software. It is automatically deleted after a successful undo operation or when a new sort is started (with user confirmation). This file does not contain biometric data, photographs, or image contents.
4. Your Control Over Your Data
You have complete control over all data stored by the Software at all times:
4.1 Delete Individual People
Click the "x" button next to any person's name in the People list. This immediately and permanently removes that individual's name and all associated face encodings from the configuration file.
4.2 Delete All Biometric Data
Click the "Clear List" button to immediately and permanently wipe all registered people, face encodings, and associated data from the configuration file. After clearing, the configuration file retains only your application settings (source folders, compute preferences).
4.3 Delete Everything
Delete the entire FaceSorterPro folder from %LOCALAPPDATA% (you can navigate there by typing %LOCALAPPDATA%\FaceSorterPro in the Windows file explorer address bar). This removes all configuration files, crash logs, undo logs, and all other data permanently.
Alternatively, uninstalling the Software and deleting this folder constitutes complete removal of all user data.
Important: Lemwil does not have access to, and has never had access to, any copy of your data. Once you delete it, it is permanently and irrecoverably gone. We cannot recover it for you.
5. Network Activity and External Communications
The Software makes zero network connections. It does not access the internet for any purpose, including:
No analytics or telemetry (e.g., no Google Analytics, Adobe, Mixpanel)
No crash reporting or error logging to external services
No license validation or phone-home calls
No update checks or download capabilities
No data transmission of any kind to Lemwil or third parties
This can be independently verified by monitoring network traffic while the Software is running. The application will produce zero outbound connections.
6. Third-Party Libraries
The Software uses the following open-source libraries for local processing only. No data is shared with these projects or their maintainers:
dlib — Face detection and facial landmark prediction (CNN model)
face_recognition — Face encoding generation and comparison
OpenCV — Image processing, rotation, and format handling
MediaPipe — Fast face pre-detection (hybrid engine mode)
Pillow (PIL) — Image loading, resizing, and thumbnail generation
pillow-heif — HEIC/HEIF image format support (iPhone photos)
rawpy — RAW camera file decoding (CR2, CR3, NEF, ARW, DNG, and other RAW formats)
All libraries run locally on your device. None of them transmit data externally when used by this Software.
7. Biometric Data Compliance
Because the Software processes facial geometry, the data it generates may be classified as biometric data under certain laws, including the Illinois Biometric Information Privacy Act (BIPA), the EU General Data Protection Regulation (GDPR), the California Consumer Privacy Act (CCPA), and similar regulations.
Your Responsibilities
As the operator of the Software, you are responsible for:
Obtaining informed consent from individuals whose photographs you process, where required by applicable law.
Complying with biometric data retention and deletion requirements in your jurisdiction.
Restricting access to the device on which the Software and Data Directory are stored.
Deleting biometric data when it is no longer needed or upon request of the data subjects.
Lemwil's Role
Lemwil acts solely as the provider of the Software tool. We do not process, access, store, receive, or have any visibility into your biometric data or photographs. All processing occurs exclusively on your device under your control.
7.5 Software Reliability and Privacy
Lemwil designs the Software with privacy as a core principle. All data processing occurs locally, and no information leaves your device. However, as with all software, Lemwil cannot guarantee the complete absence of bugs or defects. In the unlikely event that a software issue affects data handling, Lemwil is committed to addressing reported issues promptly. You are encouraged to report any privacy concerns to info@lemwil.com.
8. Data Security
Because all data remains on your local device and is never transmitted externally, data security is under your direct control. We recommend:
Securing physical access to the device on which the Software is installed.
Using operating system-level encryption (e.g., BitLocker) to protect the Data Directory.
Deleting the configuration files from the Data Directory when face recognition data is no longer needed.
Keeping your operating system and GPU drivers updated.
Being aware that undo log files persist between sessions to enable the Undo Sort feature. These can be safely deleted manually from the Data Directory at any time.
9. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. Material changes will be communicated via in-app notice or posted on our website. Continued use of the Software after changes constitutes acceptance of the updated policy.
10. Contact Us
If you have questions about this Privacy Policy or how the Software handles your data, please contact us at:
Email: info@lemwil.com