# Molecule: Daily Logic Puzzle — Black Box Grid Deduction

> Black Box Grid Deduction (iPhone/iPad app by moodstone.)

- Source: https://appshunter.io/ios/app/molecule-daily-logic-puzzle/id6777187234 (this page in markdown: same URL + `.md`)
- Developer: [moodstone](https://appshunter.io/developer/1708578376)
- Category: Games, Lifestyle, Board, Puzzle
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 17.0 · 41 MB
- Languages: American English
- Released: 2026-06-24
- Data updated: 2026-10-07

## What is Molecule?

Put your deduction skills to the test with Molecule, a pure logic puzzle inspired by the classic Black Box game created by Eric Solomon in 1977.

Can you locate the hidden molecules inside the grid without ever looking inside?

HOW TO PLAY
• Fire test rays into the edges of the grid.
• Observe where the ray emerges, reflects, or gets absorbed.
• Use logic and deduction to pinpoint the exact positions of all hidden molecules.
• Place your markers and submit your solution when your deduction is complete.

WHY YOU’LL LOVE MOLECULE
• Pure Logic & Deduction: Every board can be solved through pure deductive reasoning.
• If You Love Minesweeper, Nonograms, or Mastermind: Molecule brings that same satisfying feeling of using edge clues to reveal hidden information.
• Daily Challenge: Play a fresh handcrafted puzzle every day, share your results, and see how your deductive speed compares with players worldwide.
• Practice & Custom Modes: Choose your grid size and molecule count to practice your ray deflection logic at your own pace.
• Clean & Modern Design: Elegant minimalist aesthetics, tactile sound effects, and zero distractions.

Sharpen your mind and master the rays. Download Molecule and solve today’s puzzle!

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://molecule.moodstone.com/privacy.html

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Molecule | $1.99 | one-time |


## Is Molecule safe?

Not enough ratings yet to assess Molecule.

## Is Molecule legit?

Molecule: Daily Logic Puzzle appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Molecule is 70 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.4.5 — 2026-10-01

* Minor bug fixes
* Grid refresh

### 1.4.4 — 2026-09-28

* Bug fixes
* New lost/stolen phone recovery
* Multiple user device linking

### 1.4.2 — 2026-09-26

* Added push notifications for friend scores
* Minor onboarding improvements

### 1.4.0 — 2026-09-25

* Bug fixes
* New improved tutorial

### 1.3.8 — 2026-09-24

* Minor bug fixes

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## More apps by moodstone

- [WeightStone: Stones & Pounds](https://appshunter.io/ios/app/weightstone-stones-and-pounds/id6467405767)
- [TempPix](https://appshunter.io/ios/app/temppix/id6473547353)
- [Troddle](https://appshunter.io/ios/app/troddle/id6793154647)

All apps by moodstone: https://appshunter.io/developer/1708578376

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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 2026-10-07.*