# Induction: Logic Deduction — Hidden-grid logic deduction

> Hidden-grid logic deduction (iPhone/iPad app by Connexus Digital, LLC.)

- Source: https://appshunter.io/ios/app/induction-logic-deduction/id6804293700 (this page in markdown: same URL + `.md`)
- Developer: [Connexus Digital, LLC](https://appshunter.io/developer/1869669203)
- Category: Games, Board, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 86 MB
- Languages: American English
- Released: 2026-08-31
- Data updated: 2026-09-06
- User reviews in markdown: https://appshunter.io/ios/app/induction-logic-deduction/id6804293700/reviews.md

## What is Induction?

Somewhere inside the box, lodestones are hiding. You can't see them. You can only fire probes into the machine and watch what comes out.

A beam that flies straight through? Nothing in its path. A beam that never comes out? A direct hit. A beam that exits somewhere unexpected? Now you're getting somewhere. Every deflection is a clue!

Induction is a pure logic deduction game in the tradition of the classic Black Box puzzle: a hidden grid, a limited set of probes, and everything solvable by reasoning alone. No luck, no timers, no move-matching. If you love Minesweeper, nonograms, or picross-style deduction, this is that same "aha!" — with beams.

HOW IT PLAYS
• Fire probes into the edges of a hidden grid
• Read the results: hits, deflections, reflections, pass-throughs
• Mark your deductions in the grid until you're certain
• Seal your answer. Clean solves and streaks are tracked.

WHAT'S INSIDE
• Over 1,000 hand-tuned puzzles across notebook collections, from gentle on-ramp to expert codex
• A new Daily Challenge every day. The same puzzle for everyone, and streaks to keep
• A tutorial that teaches by demonstration, not walls of text
• Beautiful vintage-laboratory notebook style

PLAYS ANYWHERE
• Fully playable offline (commutes, flights, dead zones)
• No account required. Sign in with Google or Apple only if you want your progress backed up or synced across devices
• Progress backup and cloud sync when signed in

FAIR & FOCUSED
• Free, supported by ads; rewarded ads are always your choice
• No pay-to-win, no energy systems, no consumable nonsense
• Your brain is the only power-up

From Connexus Digital, the makers of Connexus Puzzles.

Charge the coils. Fire the probe. Find what's hiding.


## Version history (last 3 releases)

### 1.0.23 — 2026-09-04

- Share your daily results, spoiler-free! The link opens the same puzzle for a friend, ad-free, with your stats to beat shown on their board.
- Milestone shares. Streak days (7, 14, 30, 100, 365), an earned month, a finished notebook, and many Field Records.
- Par recalibrated for Daily puzzles.
- Round timer starts on your first move, not when the puzzle opens, and pauses whenever the board is off screen.
- Field Records rays fixed. A lock-out followed by a refill and solve no longer counts the pre-lock-out rays twice.
- Sounds no longer stack. Retriggering a cue cuts the previous voice.

### 1.0.19 — 2026-09-02

Enhanced puzzles with more variety, an improved tutorial system, and polished interactions including a tool to help you trace possible paths on larger boards!

### 1.0 — 2026-09-01

No release notes.

## More apps by Connexus Digital, LLC

- [Connexus Daily Puzzles](https://appshunter.io/ios/app/connexus-daily-puzzles/id6757924521)

All apps by Connexus Digital, LLC: https://appshunter.io/developer/1869669203

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*