PRISM: Laser Logic Puzzle
Bend light. Solve by logic.
Only for iPhone
Free · In‑App Purchases
iPhone
Rotate mirrors, guide the beam through every gem, and land it in the exit. One logical solution, no luck. A quiet daily puzzle you solve with your head, not your thumbs.
Rotate a mirror. A new path of light appears.
Guide the beam through every gem, then into the exit.
There is always exactly one answer.
PRISM is a quiet logic puzzle built from just light and mirrors.
A laser fires across the board, and rotating mirrors stand in its way.
Turn each mirror to "/" or "\" to route the beam so it passes through
every gem, then finally reaches the exit. No luck, ever. Every board
has a single solution, and pure logic will always get you there.
Start gentle, then climb. On Hard and Expert, wrong angles stay
plausible for several moves before they fail — so you have to read
the whole board, not just the next step. That is where the real
satisfaction lives.
FEATURES
- One-tap simplicity: rotate mirrors, that's the whole control.
- Always exactly one solution — reasoning, not guessing.
- Four difficulties (8x8 / 9x9 / 10x10 / 11x11), from first steps to brutal.
- A daily puzzle and a solving streak to keep the habit.
- Fully offline — play anywhere, no signal needed.
- No account, no sign-up, no personal details.
- A calm, minimal board where the light lines up beautifully.
- English and Japanese.
GREAT FOR
- Turning a commute or a coffee break into quiet focus.
- Fans of Sudoku-style puzzles that reward logic, not luck.
- Anyone who wants to think without ads breaking the flow.
- People who like understated, minimal design.
- A gentle "one puzzle before bed" ritual.
PRIVACY & PEACE OF MIND
PRISM keeps your progress — solves, streaks, times — entirely on your
device. Nothing is sent to a server. No account or login is required,
and we never ask for personal information. Everything works offline.
(An advertising SDK may process minimal data to show ads; personalized
ads are turned off.)
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Stability improvements and overall performance optimizations.
The developer, torankirite, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- torankirite
- Size
- 1.5 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Premium $4.99
- Copyright
- © 2026, Torankirite