# Powder Game vs Underline

The clearest difference is in-app purchases: Powder Game at none against Underline's 1. Powder Game also leads on iOS requirement (13.0 vs 17.0). Underline's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Underline sells 1 one-off in-app purchase. Powder Game asks for nothing beyond the download.

## The numbers

| Metric | Powder Game | Underline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2.2K ratings)](https://appshunter.io/ios/app/powder-game/id521519384/reviews)** | — |
| Number of ratings | **2.2K** | — |
| Positive reviews | 84.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | — |
| Monetization | Ad-supported | — |
| Size | 48 MB | 815 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DAN-BALL](https://appshunter.io/developer/348592290) | [Harry Attenborough](https://appshunter.io/developer/1896491884) |

## What reviewers say

### Powder Game

[App page](https://appshunter.io/ios/app/powder-game/id521519384)

Explore a physics sandbox where you can simulate the interactions of various elements like water, fire, and gunpowder. Witness unique reactions and emergent phenomena as different 'dots' collide and influence each other.

**Highlights:** Physics simulation with powder elements, Over 30 different dot variations, Simulate element reactions, Explosion effects, Plant growth simulation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🎉 Fun sandbox game
- 👍 Satisfying gameplay
- 🎨 Lots of creative possibilities
- 🔍 Interesting element interactions
- 🕹️ Engaging player/fighter mechanics

**What reviewers complain about**

- 🐛 Occasional glitches and bugs
- 📺 Intrusive ads
- 🔒 Limited customization options
- 🚫 Pixel/dot limit frustrating
- 🔍 Unclear how to use some features

**Reported bugs**

- View feature not working as expected
- Occasional freezing or crashing
- Inconsistent player/fighter behavior
- Saved creations sometimes disappearing

**Requested features**

- Add more elements and materials
- Increase pixel/dot limit or make it unlimited
- Implement a save/load system for creations
- Add more player/fighter customization options
- Introduce new gameplay modes or challenges


### Underline

[App page](https://appshunter.io/ios/app/underline-metro-builder/id6805291888)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Everything | $4.99 | one-time |


## Frequently asked questions

### Is Powder Game free?

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

### Is Underline free?

Underline is free to download, with in-app purchases available.

### Do Powder Game or Underline have ads?

Powder Game shows ads; Underline does not.

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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.*