Rabbit Hole: Deep Dives
Fall into the fascinating
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Everyone knows the feeling. One interesting question at midnight, and suddenly it's 2 a.m. and you've learned things you'll be telling people for weeks. Rabbit Hole is built for that feeling on purpose.
It's a short-form deep-dive reader for the strange, the unsolved, and the quietly fascinating. Browse the Stack, one rabbit hole at a time, or scroll the List. Every card is an invitation to fall in. Tap a topic and you drop through layers, from the Surface, to Deeper, all the way down to The Abyss, the parts that keep you up at night. You choose how far you go.
This is curiosity as a place you can actually visit, without an algorithm dragging you toward outrage. Come for one thing you didn't know. Leave with ten.
WHAT'S INSIDE
- Two ways to browse: Stack, one rabbit hole at a time with a swipe between sections, or List, a scrolling feed of cover cards
- Unsolved, unsettling, and genuinely fascinating topics
- Tap to fall in and read in layers: Surface, then Deeper, then The Abyss
- You control the depth. Skim the surface or go all the way down
- Clean, focused reading with nothing pulling you toward the next outrage
DECKS
- Research (free forever): deep dives into published research, each one cited to its sources
- History: the moments, people, and turning points behind the world you know
- Mysteries: the unsolved, the unexplained, and the questions with no easy answer
Rabbit Hole is for the curious. The people who read the plaque, follow the footnote, and keep asking one more question. If that's you, this is your feed.
Just don't blame us for the time.
WHAT TO KNOW
Research is free forever, with no limit. Mysteries and History give you five full rabbit holes plus a preview, then Rabbit Hole Plus unlocks everything.
Rabbit Hole Plus is sold two ways. Lifetime is a one-time purchase: it does not renew and there is nothing to cancel. Monthly is an auto-renewing subscription with a free trial for eligible customers; payment is charged to your Apple Account at confirmation of purchase, or at the end of the free trial, and it renews automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Prices are shown in the app before you buy.
Privacy Policy: https://hbkllabs.com/rabbithole/privacy
Terms of Use: https://hbkllabs.com/rabbithole/terms
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The welcome screen now says exactly what is free: Research is free forever, and the first five holes in Mysteries and History are on us.
The developer, HBKL Labs LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HBKL Labs LLC
- Size
- 14.6 MB
- Category
- Reference
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Frequent
Horror/Fear Themes
Infrequent
Realistic Violence
Mature or Suggestive Themes
- In-App Purchases
Yes
- Lifetime $4.99
- Monthly $1.99
- Copyright
- © 2026 HBKL Labs LLC