Here, in the pale glow of a small glass rectangle, a human pauses to read about an app. The thumb hovers. Whether it taps the link below, or scrolls on to photographs of other people’s lunch, we may never know.

David Chattenborough, on you, just now. Play audio

Join the beta

iPhone only. The invitation link and the key need the site password; ask Mark for it.

Chattenborough is an iPhone app that takes one photo and narrates it in the hushed, reverent voice of a nature documentary. Point it at anything: a sandwich, a sleeping dog, your brother. It finds the single most remarkable thing in the frame and tells the world about it, played perfectly straight.

What it does

• Narrates a photo

  Take a photo or pick one. A few seconds later it has a title, a script, and a voice reading it, with the words lighting up as they’re spoken.

• Six narrators

  The same photo gets a very different opinion depending on who you hand it to.

• Exports a video

  Every narration becomes a short video with the title, the voice, and captions on it, ready to send to whoever is in the photo.

• Animates the scene

  Some accounts can turn a narrated photo into a short clip where the scene moves under the voice. It’s still being tested.

The narrators

David Chattenborough

Narrates as though the photo were on a nature documentary. The comedy is the majesty, applied to your lunch.

Elmo

Narrates with childlike wonder and excitement. If there is anything remotely interesting, it is a very big deal.

Werner Herzog

Finds the abyss in a birthday cake.

Richard Feynsplain

Explains your photo like it’s the most delightful problem in physics.

Nick Nick

A leading biomedical scientist with brooding undertones.

Loana the Detached

Drags the photo as if it were a school rival.

Join the beta

Chattenborough is in TestFlight for friends and family. There are no accounts and nothing to sign in to. Open the invitation link on your iPhone and install the app; it goes through Apple’s TestFlight app, so install that first if you don’t have it. When Chattenborough opens, copy in the access key and tap Connect.

Both are behind the site password; ask Mark for it. Everyone uses the same key, so keep it in the family.

The app makes up a random name for your phone and files your narrations under it, so nobody, including Mark, learns your name or email.

The photos you narrate are yours. What the app keeps, who processes it, and how to have it all deleted is on the privacy page.

Why it exists

It began as a web toy after Charlie Holtz’s narrator demo made the rounds, and turned into a phone app because the funniest photos are the ones you took ten seconds ago. The old website was retired in September 2026. The app is the whole thing now.