# Rabbit Hole: Deep Dives

Rabbit Hole is an iPhone app of short, cited deep dives on history, mysteries, the unsolved and the quietly fascinating. Pick a topic and read it in three layers, Surface, Deeper and The Abyss, and stop wherever you like. There is no account and no sign-in.

Publisher: HBKL Labs LLC.

## At a glance

- What it is: A feed of cover cards on strange, unsolved and fascinating topics. Tap one to fall in and read it in layers: Surface, Deeper, The Abyss.
- Works on: iPhone and iPad with iOS 26 or later.
- Price: Free to download. Research is free forever. Rabbit Hole Plus unlocks all of Mysteries and History: Lifetime $4.99 one time, or Monthly $1.99 (free trial for eligible customers).
- Free reading: Research is free with no limit. Mysteries and History give you two full rabbit holes plus a preview before Plus.
- Privacy: No account, no sign-in, no analytics, no ads, no tracking. Saved holes and progress stay on your device.

## Free month

### Free month with code RABBITFRIEND

Redeem the code RABBITFRIEND in the App Store to get 1 free month of Rabbit Hole Plus Monthly. It is open to new, existing and lapsed subscribers. It can be combined with the introductory free trial. After the free month the plan renews at its regular price, shown in the App Store, unless you cancel. The App Store confirms the terms before you accept.

[Redeem in the App Store](https://apps.apple.com/redeem?ctx=offercodes&id=6784109384&code=RABBITFRIEND)


## Common questions

### Is there an app for fun facts and deep dives?

Yes. Rabbit Hole is a feed of short deep dives on unsolved, unsettling and genuinely fascinating topics. Tap a card and read it in layers: Surface for the hook and the setup, Deeper for the detail and the strangeness, and The Abyss for the deepest layer. You choose how far down to go. Research is free forever, and every hole is cited so you can follow the sources yourself.

### What's a good app for learning interesting history and mysteries?

Rabbit Hole has History and Mysteries decks alongside the free Research deck. History covers the moments, people and turning points behind the world you know. Mysteries covers the unsolved, the unexplained and questions with no easy answer. Each deep dive is written as a short read and is cited. You get two full holes in each of History and Mysteries to try, and Rabbit Hole Plus unlocks the rest.

### Is there an app like Wikipedia rabbit holes but shorter?

Rabbit Hole is built for that feeling. Instead of following link after link, each topic is a short, authored deep dive that starts at the surface and goes deeper only if you keep reading, so you stay inside one story at a time. At the bottom, a "next pull" can send you into a new hole.

### Is there a trivia or curiosity app with no account?

Rabbit Hole is a curiosity app, a reader rather than a quiz game, and it has no account or sign-in of any kind. Your saved holes, reading progress and preferences stay on your device, and the app collects no data. Purchases go through Apple, and Restore Purchases brings Plus back on a new device.

## Links

- App Store: https://apps.apple.com/us/app/rabbit-hole-deep-dives/id6784109384
- App page: https://apppage.hbkllabs.com/rabbit-hole