DropOS vs Gravity Graffiti
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
Gravity Graffiti
A physics puzzle game where you draw lines to guide falling confetti into a gravity hole. Over 100 levels feature unique challenges like moving obstacles and limited ink. Customize your game with collected sparks and earn rewards by completing goals.
- 100 handcrafted physics puzzle levels
- Draw solutions with your finger
- Earn Stars and chase Perfect Drops
- Collect Sparks for cosmetic unlocks
- Customize lines, confetti, and effects
- Complete Goals for milestone rewards
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Draw it. Drop it. Watch gravity take over. Gravity Graffiti is a colorful physics puzzle game where every line you draw becomes part of the level. Guide falling confetti into the gravity hole by drawing ramps, funnels, curves, and creative paths. Each level introduces new challenges including moving obstacles, wind, portals, limited ink, split drops, and more. FEATURES • 100 handcrafted physics puzzle levels • Draw your own solution with your finger • Earn Stars and chase Perfect Drops • Collect Sparks and unlock unique cosmetics • Customize your lines, confetti, holes, backgrounds, and Drop Effects • Complete Goals and earn milestone rewards • Optional rewarded ads only — no forced ads • Replay levels to improve your score and unlock more prizes Can you master gravity and collect every piece?
Screenshots
Verdict
The clearest difference is in-app purchases: DropOS at none against Gravity Graffiti's 1. DropOS also leads on ads (none vs shown). Gravity Graffiti's advantage is update cadence (every 3 days vs every 6 days). On price, rating, review sentiment and ratings volume 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. Gravity Graffiti sells 1 one-off in-app purchase. DropOS asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for DropOS against 5.0 for Gravity Graffiti. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
DropOS ships an update every 6 days, Gravity Graffiti every 3 days. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.
| Parameter | DropOS | Gravity Graffiti |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 3 | 3 |
| Update frequency | Every 6 days | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 70 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | LaunchKitOS | RYLEE DEAN MAXWELL |
Customer experience
DropOS
Gravity Graffiti
In-app purchases
DropOS
No in-app purchases
Gravity Graffiti
- Unlimited Lives$2.99







