FastLoupe

Privacy Policy

FastLoupe is local-first, and stays that way.

Effective date: 5 September 2026 · Publisher: Oddbrd Oy

The short version: FastLoupe runs on your computer. It has no FastLoupe account, and Oddbrd receives no telemetry, analytics, photos, or information about your library. Optional features contact the providers named below; those providers receive ordinary request data under their own policies. Everything below is detail.

What Oddbrd collects about you

From your use of FastLoupe, nothing. FastLoupe has no Oddbrd or FastLoupe account or sign-in, no telemetry or usage analytics, and no crash-reporting service. Optional provider features can ask you to sign in to that provider — for example Microsoft for Azure or OneDrive — but those credentials go to the provider, not Oddbrd. Oddbrd receives no personal data, photos, metadata or diagnostics from your use of the app. We cannot see your library.

If you choose to email support, Oddbrd receives your email address and whatever you include in the message. We use that correspondence only to answer and resolve your request, and retain it only as long as reasonably needed for support and legal record-keeping.

What the app stores, and where

FastLoupe keeps everything it needs on your own device. Deleting these removes the data:

DataWhat it isWhere it lives
CatalogueA local SQLite database of your photo metadata, ratings, flags, labels and adjustments — no image pixels.The location you choose (e.g. FastLoupe.db).
Thumbnail cachePacked, memory-mapped thumbnail images so browsing is fast. A cache/thumbs folder beside the catalogue.
Map cacheOpenStreetMap map images downloaded after you allow them, retained so viewed areas remain available offline.A cache/tiles folder beside the catalogue.
Entitlement cacheWhich optional paid add-ons you own, so they keep working offline.App settings file (see below).
Trial recordsThe local optional add-on trial records its start and duration in app settings. This is separate from the base app's 30-day trial: Microsoft Store manages the Windows trial; on Mac, FastLoupe uses the earliest verified StoreKit transaction for app.trial30. Editing local settings does not restart that Mac trial. App settings for the local add-on trial; Store-managed licence or verified transaction records for the base app trial.
Settings fileYour preferences, including the saved online/offline map choice, the add-on entitlement cache and the local add-on trial record. %LOCALAPPDATA%\FastLoupe\avalonia-ui.json (Windows) / ~/.local/share/FastLoupe/avalonia-ui.json (macOS).
Sync credentialsOnly if you set up optional sync: Azure/S3 secrets and the Dropbox refresh token are protected via the OS secret store. OneDrive uses MSAL's encrypted token cache; FastLoupe stores only the non-secret home-account identifier needed to select that cached account.OS secret store or MSAL protected cache; non-secret account identifiers in the settings file.
Downloaded model (optional)If you opt in to semantic search, the downloaded model files.%LOCALAPPDATA%\FastLoupe\models (or a folder you set).
Local diagnostics, pass logs & crash filesThe shareable “Save diagnostics…” report is written only when you ask and excludes photo file names, photo paths and sync credentials. A crash report is written after a crash and can quote a path inside the error text, with a warning to review it before sharing. Tether-latency and per-pass failure logs are written automatically while those features run and may contain full watched-folder or photo paths; they stay local and are excluded from the shareable diagnostics report. None of these files is sent anywhere automatically. %LOCALAPPDATA%\FastLoupe\diagnostics (macOS: ~/.local/share/FastLoupe/diagnostics).

When FastLoupe uses the network

FastLoupe is not strictly offline-only, but it makes network calls only in the situations below. Oddbrd receives none of your photos, catalogue data, or telemetry; where another provider necessarily receives information, it is named below:

Why the Mac App Store privacy label lists data

Apple defines “collected” data to include data retained by third-party partners, even when the developer does not receive it. To avoid understating the provider practices above, FastLoupe's Mac App Store disclosure is deliberately conservative:

All six categories are marked as linked to the user because a provider may retain them with an IP address or device details. None is used for tracking: FastLoupe contains no advertising SDK, does not combine this data with third-party data for advertising, and does not share it with a data broker. See Apple's App Privacy definitions for the terminology. These labels do not mean Oddbrd receives telemetry; it does not.

Files the app can change on your device

Browsing your library is read-only. Some actions you explicitly choose — and confirm on screen — do write to your files: importing from a card into dated folders, reorganising originals into a date-based layout, writing .xmp sidecars next to originals, deleting selected originals to the Recycle Bin/Trash, and exporting resized copies. None of these runs automatically or in the background, and none involves us. Among these file-changing workflows, network use is limited to the optional sync add-on and the explicitly chosen Apple Photos iCloud-download mode described above.

Children

FastLoupe is a general-purpose desktop tool and is not directed at children. It collects no personal information for Oddbrd; optional network providers receive only the request data described above under their own policies.

Changes to this policy

If this policy changes, the updated version will be posted here with a new effective date.

Contact

Questions about privacy: visit FastLoupe Support or email support@fastloupe.com.

Oddbrd Oy · Business ID 3639597-2 · c/o Sami Lavikko, Tontunmäentie 33 C, 02200 Espoo, Finland.