Skip to content
Get the app
reDiffusion

Privacy Policy

Effective 24 October 2026

reDiffusion is a TV guide and media player for iPhone, iPad, Mac and Apple TV. It plays live television and video from sources you configure: network tuners on your home network, playlists you add, and your own media servers. This policy explains what the app stores, where it goes, and what we can and cannot see.

The short version

  • reDiffusion has no accounts, no analytics, no advertising and no tracking.
  • Your settings, sources, sign-in details and watch history stay on your devices and, if you turn on iCloud sync, in your own iCloud. We cannot read them.
  • The app contacts your sources, a small number of services we operate for guide data and artwork, and only those third-party services you choose to enable.
  • We do not sell, share or collect personal data.

Data stored on your device

To work, the app keeps the following on each device where you use it:

  • Your sources: tuner addresses, playlist and guide URLs, media-server addresses, and the categories and channel matches you set up.
  • Sign-in details for your media servers and for any optional services you enable. These are stored in the device Keychain, Apple’s encrypted credential store.
  • Watch progress, watched episodes, favourites, reminders and downloaded episodes.
  • Cached guide data, artwork and the app’s preferences.

All of this is removed when you delete the app (downloads and caches) or when you remove the source inside the app. Keychain items are removed when you sign out of a source or delete the app’s data.

iCloud sync (optional)

If you enable iCloud sync, your sources, preferences, watch state and sign-in details are stored in the private CloudKit database of your own Apple Account and in your iCloud Keychain, so your other devices pick them up. Apple holds that data under its own privacy policy; it is encrypted to your account and we have no access to it. Turn sync off in Settings at any time; the data stays in your iCloud until you remove it or delete the app’s iCloud data from your Apple Account settings.

Where the app connects

DestinationWhat is sentWhy
Your own sources (tuners, playlists, Jellyfin, Plex, Emby, Xtream-API servers, network shares, cloud drives)Your credentials for that source, the channels and items you request, and your playback position where the server tracks it.To list and play your content. These connections are between your device and your source; we are not involved.
Services we operate (programme artwork and descriptions, and SAT>IP playlist templates, hosted at n-u-l-l.studio domains)The programme and channel titles the app needs to identify, the satellite and region you choose when setting up a SAT>IP tuner, and the ordinary technical details of any web request (your IP address, device type and app version).To add artwork and descriptions to your guide and library, and to build the channel list for a SAT>IP tuner. Requests are processed only to serve the response. Routine server logs may keep IP addresses and requested URLs for a short period for security and reliability; they are not linked to you, used for profiling, or shared. If a guide URL you have configured points at a guide service we host, the app fetches it like any other guide URL.
Optional third-party services you enableSee the next section.Extra features such as subtitles, scrobbling and skip markers.

The app also uses your local network to find tuners (HDHomeRun and SAT>IP devices). iOS and tvOS ask for your permission first. Nothing about your network is sent to us.

Optional third-party services

Can be turned on and off in Settings. Each is governed by its provider’s own privacy policy.

ServiceUsed forWhat it receives
fanart.tv (on by default)Channel and programme artworkProgramme identifiers
OpenSubtitlesDownloading subtitlesFilm or episode details to search for; your OpenSubtitles account if you sign in
SIMKLTracking what you watch (scrobbling)What you play and when, under your SIMKL account
Watcharr and Yamtrack (self-hosted)Tracking what you watch on your own serverWhat you play, sent to the server you configure
SkipDB, TheIntroDB, introdb.app, Anime Skip and AniList (on by default)Intro, recap and credits markersProgramme or episode identifiers
Apple AirPlay and Picture in PicturePlaying to other screensHandled by Apple’s frameworks on your device

Notifications

Programme reminders are local notifications scheduled on your device. The app uses Apple’s push service only to keep iCloud sync up to date between your devices; those pushes carry no content.

What we do not do

  • No analytics or crash-reporting services of our own. If you share diagnostics with Apple, that is governed by Apple’s settings on your device.
  • No advertising, no advertising identifiers, no tracking across apps or websites.
  • No sale or sharing of personal data.
  • No data processing on our servers beyond answering the requests described above.

Children

reDiffusion is not directed at children under 13 and does not knowingly collect information from them. The app plays whatever sources an adult configures.

Your rights

Because your data lives on your devices and in your own iCloud, you control it directly: edit or remove sources in the app, sign out of services, turn off iCloud sync, or delete the app. For data held by a third-party service you enabled, contact that provider. Under the UK GDPR and equivalent laws you may ask us what information our servers hold about a request; in practice this is limited to short-lived server logs. Contact details are below.

Changes

If this policy changes, the new version will be published at this address with a new effective date. Changes that affect what the app sends will also be noted in the app’s release notes.

Contact

Questions about this policy or about the app can be sent to . Support information is on the support page.