Privacy is the Core Logic of Our Products

Local music and sound-effect asset manager for Mac and Windows: AI tagging, batch organizing, safe writeback

Effective Date: 2026-09-11

PureLab (hereinafter referred to as the App) is a local-first intelligent music tag organizer. Audio files, analysis results, and tag data stay on your device by default. If you use the AI Assistant, limited network transmission occurs as described in this policy: conversations go to the model service you configure, plus optional anonymized usage logs.

Local stem separation for Mac and Windows: split a song into vocals, accompaniment, drums, bass, and more

Effective Date: May 14, 2026

PureSpleeter (hereinafter referred to as 'the App') is a fully offline, local AI audio source separation tool. All operations including audio loading, model inference, stem splitting, and file exporting are processed strictly on your local device. We guarantee the App never transmits or collects your media content.

Local voice denoising and de-reverb for Mac and Windows

Effective Date: May 28, 2026

PureRefine is a local-first macOS and Windows professional audio processing utility. We are deeply committed to protecting your privacy. This policy explains how we handle your data.

Local audio restoration for Mac and Windows: repair recordings with hiss, noise, and missing frequency ranges

Effective Date: June 12, 2026

Efficient Lab ('we', 'us', or 'our') is committed to protecting your privacy. This Privacy Policy applies to the PureRestore desktop application (macOS and Windows) and its command-line interface (CLI).

Batch-extract a whole folder of SACD ISOs into tagged DSF files

Effective Date: January 10, 2026

PureDSD Batcher (hereinafter referred to as "the App") is developed by an independent developer. We take your privacy seriously. The App is designed to provide local SACD ISO audio extraction services. We strictly commit that the App does not collect, store, upload, or share any of your personal information or file data.

Hi-Res local music player for iPhone, iPad, and Mac, with Bit-Perfect, DSD, and NAS / cloud library support

Effective Date: July 8, 2026 (Anonymous AI Intent Analytics update)

PurePlayer Hi-Res uses the privacy-policy version maintained on this official website and updates disclosures as features evolve. The app is built on a local-first model and emphasizes user control over personal data, music files, and listening habits.

Local music server for Mac and Windows: one unified library, original-quality LAN streaming, on-demand transcoding, and encrypted remote access (in development)

Effective Date: 2026-10-30

PureStream (hereinafter referred to as “the Service” or “the App”) is a local music server application for Mac and Windows. We adhere to local-first and data-minimization principles: your music files, library metadata, and playback history remain on your computer. When you use device pairing, remote access, or subscription features, our control plane processes only the limited data necessary to establish connections and verify entitlements. This policy describes how data is handled and your choices.

On-device AI photo culling for Mac and Windows: find duplicates, near-duplicates and rejects, keep the best frame

Effective Date: 2026-05-12

LumiSift maintains its privacy policy directly on the official website. We take your privacy extremely seriously. Designed as a Local-First tool, it fundamentally guarantees the safety of your photo library data.

Local-first AI photo management for Mac and Windows: diagnosis, cleanup, people recognition and metadata

Effective Date: 2026-09-03

LumiLab maintains its privacy policy directly on the official website. We take your privacy extremely seriously. Designed as a local-first tool, it fundamentally guarantees the safety of your photo library data. This policy includes a dedicated Face Data section that explains what face-related information is generated on your device, how it is used, where it is stored, how long it is kept, and how it is deleted.

Free batch audio converter: convert a whole library while keeping tags, covers, and DSD-to-PCM support

Effective Date: March 25, 2026

PureConvert Batcher (hereinafter referred to as "the App") is a fully offline, local audio transcoding and processing tool. All reading, editing, tag parsing, and conversion operations occur locally. We take your privacy seriously and guarantee the App never transmits or collects your source media files.

An offline allergen checker for iPhone: photograph the ingredient list, see whether it contains what you avoid

Effective Date: January 25, 2026

Thank you for using InGuard. We value your privacy and this policy explains how your information is handled.

Find private photos in your library on-device and move them where you want. Works on iPhone, Mac and Windows

Effective Date: January 05, 2026

“Private Photo Move” (the App) respects your privacy and is committed to protecting your personal data.

Batch audio processing for delivery: convert formats while denoising, normalizing loudness and trimming silence, plus a CLI

Effective Date: April 11, 2026

PureConvert Pro (hereinafter referred to as "the App") is a fully offline, local audio transcoding and processing tool. Reading, editing, tag parsing, transcoding, loudness analysis, denoising, silence trimming and Headless CLI runs all happen on your machine. We take your privacy seriously and guarantee the App never transmits or collects your source media files, your processing parameters or your usage history.

Helps Windows users leave personal OneDrive safely: free check, download cloud files in place, copy Desktop and Documents back, verify to 0 missing, then guide the stop-backup steps

Effective Date: September 20, 2026

Efficient Lab ('we', 'us', or 'our') is committed to protecting your privacy. This Privacy Policy applies to the SafeExit for OneDrive desktop application for Windows, a local-first tool that helps you leave personal OneDrive without losing files.