# air vs Impact Master

The clearest difference is price: Impact Master at Free against air's $4.99. Impact Master also leads on in-app purchases (none vs 3). air's advantage is chart position (#198 vs unranked). On ads, device support and iOS requirement there is nothing between them.

Impact Master is free to download; air costs $4.99 up front. air sells 3 one-off in-app purchases. Impact Master asks for nothing beyond the download.

## The numbers

| Metric | air | Impact Master |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.5 (19 ratings)](https://appshunter.io/ios/app/air-star/id6445810380/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | — |
| Monetization | Paid | — |
| Best chart rank | **#198** | — |
| Size | 75 MB | 88 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brendan Roarty](https://appshunter.io/developer/1673920112) | [Hangzhou jingtu network technology co., LTD](https://appshunter.io/developer/1445389811) |

## What reviewers say

### air

[App page](https://appshunter.io/ios/app/air-star/id6445810380)

**Currently charting:** #198 Top Paid · Casual (US App Store)

Defend against incoming luggage as a frog in this tower defense game. Purchase upgrades for towers and health to progress further. Customize your character with unlockable outfits and hats.

**Highlights:** 70+ unique upgrades, Ultimate Upgrades for endgame, 7 unlockable levels, Character customization (hats, skins), Unique achievements

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Retry Tokens | $0.99 | one-time |
| Star Stack | $0.99 | one-time |
| Star Bundle | $1.99 | one-time |


### Impact Master

[App page](https://appshunter.io/ios/app/impact-master/id6747180635)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is air free?

air costs $4.99, and also offers in-app purchases.

### Is Impact Master free?

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

### Do air or Impact Master have ads?

Neither air nor Impact Master shows ads.

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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.*