Devourer Rush vs DropOS
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Devourer Rush
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Gravity Vortex features a revolutionary PHYSICS-BASED mechanic. Instead of simply touching objects, you ATTRACT them using your gravitational field — just like a real black hole! REALISTIC PHYSICS ENGINE Our custom-built physics engine simulates actual gravitational mechanics: · Gravitational Attraction - Objects are pulled based on Newton's law (F = Gm₁m₂/r²) · Orbit Prediction System - See calculated trajectories of objects being attracted in real-time · Gravity Wave Visualization - Watch beautiful ripples in spacetime as you move · Mass & Density System - Different celestial bodies have unique gravitational properties 6 COSMIC REGIONS TO EXPLORE Unlock and master different regions of space, each with unique physics modifiers: · Cosmic Nebula - The starting region with balanced gameplay · Event Horizon - Near a black hole, gravity is 50% stronger · Asteroid Belt - Dense debris field with increased spawn rates · Supernova Remnant - Chaotic region with faster enemies · Dark Matter Zone - Mysterious area with strange gravity behavior · Quantum Void - The ultimate challenge at the edge of reality 30+ ACHIEVEMENTS Earn achievements across 8 categories: · Consumption milestones · Survival challenges · Score records · Combo mastery · Combat victories · Exploration progress · Physics mastery · And more legendary challenges! BUILT-IN PHYSICS TUTORIAL Learn real astrophysics while you play: · Newton's Law of Universal Gravitation · Gravitational Waves (Einstein's 1916 prediction) · Black Hole Event Horizons & Schwarzschild Radius · Orbital Mechanics & Escape Velocity 6 GRAVITY-MANIPULATION SKILLS Unlock powerful abilities as you level up: · Gravity Pulse - Instantly pull all nearby objects · Time Warp - Slow down time to plan your moves · Black Hole - Create a temporary singularity · Warp Jump - Teleport through spacetime · Repulsion Field - Push away all enemies · Energy Burst - Restore energy and become invincible MULTIPLE GAME MODES Endless Cosmos Test your gravitational mastery in an infinite procedural universe. How long can you survive? Campaign Mode Battle through 6 challenging waves culminating in an epic boss fight against the Void Guardian: · Collection challenges · Survival missions · Time attack stages · Dodge challenges · Multi-phase boss battle COMBO SYSTEM Chain gravitational captures for up to 5x score multipliers. Master the physics-based attraction timing! cADDITIONAL FEATURES · Beautiful vector graphics with particle effects · 8 unlockable player skins · Haptic feedback support · Local statistics tracking · 100% offline gameplay · No ads, no in-app purchases · Privacy-focused: no data collection
DropOS
Engage in a physics-based puzzle game where you strategically drop marbles into a contraption. Plan the sequence of drops to guide each marble into its matching bin, with each marble's passage altering the machine for the next.
- Physics-based contraption puzzles
- Strategic marble dropping
- 100 hand-designed levels
- Weekly leaderboard
- Earn in-game cogs
- Bonus brass pin board
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A da Vinci workshop, rendered in brass and gravity. In a lantern-lit workshop of brass and walnut, a marble waits at the top of a machine you cannot steer. Drag it into the top funnel and let go. Real gravity takes over, and the marble rolls, tips, and tumbles through the fixed contraption until it lands, ideally, in a bin that matches it. Then look again. Every piece that marble crossed has changed for the marble behind it. You plan the sequence. Physics does the rest. You never steer a marble in flight. You read the machine, then choose the order you drop them in. - The see-saw bit tips one way, then the other. The marble crossing it reroutes the next one. - The rotor does not toggle. It counts forward to its next exit with every pass. - The remote lever throws a switch from across the board. - The waterwheel never stops turning, so timing matters as much as logic. - The felt slows a marble to a crawl. It changes how late a marble arrives, never where it lands. - The wax seal carries the first marble across, then breaks. Every marble behind it drops through. Every marble in a bin that matches it, every bin filled, and the level is solved. A misfire is not a wall. Press the red knob and the machine re-cocks itself, ready for a new order. Walking out on a run already in motion costs your streak, so the machine asks first. What's inside - 100 hand-designed levels, rated one to five in difficulty - One new idea at a time: no two pieces debut on the same board - More waiting deeper in: the gilded marble, the cam tongue, the trapdoor, the pendulum, the drumskin, and the press - A weekly boards leaderboard to climb - Exclusive looks to collect as you play: rare marble sets, board finishes, and lever trims - Three brass instruments for a stubborn board: the Hourglass, the Blueprint, and the Apprentice Built like a puzzle box. Every surface is warm brass, walnut, or aged parchment, and every word is set in EB Garamond, the serif of an old draftsman's manual. Yours to play, quietly. No ads. No sign-in. No ad-tracking or ad-targeting software. DropOS needs no connection to play; anything synced for the leaderboard is anonymous by default. For anyone who loved the marble-drop puzzlers of the late 1990s, and for anyone meeting one for the first time.
Screenshots
Verdict
The clearest difference is iOS requirement: Devourer Rush at 12.0 against DropOS's 18.0. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Devourer Rush | DropOS |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | — | Every 6 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 26 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | 政 黄 | LaunchKitOS |
In-app purchases
Devourer Rush
No in-app purchases
DropOS
No in-app purchases









