ISUD Zero vs Luma
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
ISUD Zero
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Dodge readable bullet patterns, graze for Phase Pulse, and chase clean weekly scores against the Pattern Engine. Description: I.S.U.D. Zero is a portrait bullet-hell boss rush built around clean reads, a tiny fair hitbox, and fast retry mastery. Enter the simulation chamber, learn each boss pattern, graze close calls to charge Phase Pulse, and chase cleaner clears across The Instructor, Mirror Cadet, Twin Array, and The Cartographer. Every run is short, sharp, and score-driven. Bosses move, mutate, and escalate through multiple phases. The ship only takes damage at the red core, so the chaos stays readable even when the screen blooms with bullets. Features: - Precision drag controls for portrait play - Fair red-core hitbox with optional callout - Graze scoring and Phase Pulse screen clears - Four multi-phase bosses with distinct patterns and visual escalation - Five additional boss slots marked Coming Soon - Difficulty options, persistent best scores, and ranks - Game Center weekly and all-time high score leaderboards - Neon arcade presentation with original audio hooks
Luma
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A MAZE MADE OF LIGHT Luma is a tactile logic game about bending beams into elegant solutions. Rotate mirrors, move optical pieces, split light through prisms, mix colors, trigger circuits, and illuminate every target. Solving the field is only the beginning. Many studies allow more than one route. Find a working composition, then return to improve its Economy, Material, and Radiance scores. 240 OPTICAL STUDIES Move through ten folios that introduce new ideas, then combine them into deeper spatial puzzles: • Mirrors and movable optics• Absorbers, shutters, and one-way glass• Color filters and color-matched targets• Prisms, split beams, sensors, and linked mechanisms• Layered fields with multiple targets and alternate routes THREE WAYS TO PLAY • The Archive — progress through the complete composed collection• Light Rush — solve under a level-specific timer• Open Field — begin with every active optic loose and construct the route yourself SOLVE. THEN REFINE. Every solution receives a considered evaluation. Use the light you collect to unlock color editions or carry Pocket Powers into harder studies: Nudge, Double Edit, and Still Time. DESIGNED FOR FOCUS Warm paper, precise typography, native haptics, responsive animation, and undo and redo make every move feel considered. No ads. No account. No tracking. Play entirely offline. Find the route. Then find the beautiful one.
Screenshots
Verdict
The clearest difference is price: Luma at Free against ISUD Zero's $0.99. ISUD Zero's advantage is iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Luma is free to download; ISUD Zero costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | ISUD Zero | Luma |
|---|---|---|
| Price | $0.99 | Free — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 119 MB | 2 MB |
| Age rating | 12+ | 4+ |
| Developer | Suwitcha Sugthana | CARLOS ANTONIO MURRIETA STEINMAN |
In-app purchases
ISUD Zero
No in-app purchases
Luma
No in-app purchases









