Inferra
Deduce the hidden law
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Every puzzle in INFERRA obeys a hidden Law — a secret rule you cannot see.
Mark tiles on the board and submit. The Seals answer with a single, merciless number: how many laws your marking satisfied. Never which ones. From that scarce signal you must reason your way to the truth.
No tutorials. No hints. No pay-to-win. And because every board is procedurally forged, there are no walkthroughs to look up — only your own mind.
THE DAILY TRIAL
One shared puzzle for the whole world every day. One attempt counter, one clock, one leaderboard. Your first solve is final — make it count.
WORLD RANKS
One global leaderboard for the Daily Trial. Claim your name and see where you stand today.
THE GAUNTLET
A personal campaign that grows harder forever. Your sequence of puzzles is seeded to your device — nobody else can walk your path.
ENDLESS
Five difficulty tiers, from gentle 4x4 inductions to 6x6 boards ruled by four interlocking laws. Challenge a friend to the exact same puzzle with one link.
THE CODEX
Twenty families of laws to discover, from The Census to The Weave. Each solved puzzle reveals its laws in plain English and records them in your Codex.
Rank ORACLE awaits those who solve a Law on the very first submit. Good luck — you will need reason, not luck.
INFERRA COMPLETE (one purchase, forever) unlocks the full Gauntlet, Endless Tiers 4-5, the Daily Archive, and four bonus themes. The Daily Trial is free for everyone, always.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
INFERRA has always spoken eight languages — English, Russian, German, French, Spanish, Portuguese, Japanese and Korean — but the App Store listed only English. Fixed. Nothing else changed: the same laws, the same seals, and your Codex and streak are untouched.
The developer, P AND A 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:
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- P AND A, TOO
- Size
- 1.1 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 7 more
- English, French, German, Japanese, Korean, Portuguese, Russian, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- INFERRA Complete $5.99
- Small Tip $1.99
- Big Tip $4.99
- Copyright
- © 2026 P and A LLC
