# Balls Gravity vs DropOS

The clearest difference is ads: DropOS at none against Balls Gravity's shown. DropOS also leads on update cadence (every 6 days vs every 33 months). Balls Gravity's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 18.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Balls Gravity ships an update every 33 months, DropOS every 6 days. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Balls Gravity | DropOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/dropos-marble-machine/id6788594506/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 33 months | **Every 6 days** |
| Monetization | — | Free |
| Size | 53 MB | 28 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Marco Andreotti](https://appshunter.io/developer/1514019597) | [LaunchKitOS](https://appshunter.io/developer/6820402257) |

## What reviewers say

### Balls Gravity

[App page](https://appshunter.io/ios/app/balls-gravity/id1553676622)

**Features:** macOS Compatibility

**In-app purchases:** none


### DropOS

[App page](https://appshunter.io/ios/app/dropos-marble-machine/id6788594506)

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.

**Highlights:** Physics-based contraption puzzles, Strategic marble dropping, 100 hand-designed levels, Weekly leaderboard, Earn in-game cogs, Bonus brass pin board

**In-app purchases:** none


## Frequently asked questions

### Is Balls Gravity free?

Balls Gravity is free to download, with no in-app purchases.

### Is DropOS free?

DropOS is free to download, with no in-app purchases.

### Do Balls Gravity or DropOS have ads?

Balls Gravity shows ads; DropOS does not.

### Which is updated more often, Balls Gravity or DropOS?

Balls Gravity ships an update every 33 months, and DropOS every 6 days. Most recently, Balls Gravity was updated on October 2, 2026 and DropOS on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*