# Gravity Duel vs Mech Boa

The clearest difference is in-app purchases: Mech Boa at none against Gravity Duel's 1. Mech Boa also leads on update cadence (every 5 days vs every 3 weeks) and ratings volume (142 vs 17). Gravity Duel's advantage is review sentiment (60% vs 26%) and rating (3.9 vs 3.7). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Gravity Duel sells 1 one-off in-app purchase. Mech Boa asks for nothing beyond the download.

Gravity Duel holds the better App Store score, 3.9 against 3.7. That said, the two scores are not equally well evidenced: Mech Boa has 142 ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 60% of Gravity Duel's written reviews are positive against 26% of Mech Boa's.

Gravity Duel ships an update every 3 weeks, Mech Boa every 5 days. The most recent releases landed on September 20, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Gravity Duel | Mech Boa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (17 ratings)](https://appshunter.io/ios/app/gravity-duel/id1540953387/reviews)** | [3.7 (142 ratings)](https://appshunter.io/ios/app/mech-boa/id1545138884/reviews) |
| Number of ratings | 17 | **142** |
| Positive reviews | **60.0% of reviews** | 26.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 104 MB | 214 MB |
| Requires iOS | **12.0** | 12.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [Tummy Games](https://appshunter.io/developer/1497883695) | [Yso Corp](https://appshunter.io/developer/659815325) |

## What reviewers say

### Gravity Duel

[App page](https://appshunter.io/ios/app/gravity-duel/id1540953387)

Engage in intense battles where the last player standing wins. Maneuver your character and strategically eliminate opponents to secure victory in this survival-focused game.

**Highlights:** Last man standing gameplay, Player elimination battles, Strategic movement, Survival challenges, Multiplayer combat

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $2.99 | one-time |


### Mech Boa

[App page](https://appshunter.io/ios/app/mech-boa/id1545138884)

Control a giant mechanical snake monster and unleash destruction on towns. Experience hyper-casual gameplay as you rampage through cities, demolishing everything in your path.

**Highlights:** Control a giant mechanical snake, Destroy towns, Hyper-casual gameplay, Rampage through cities

**In-app purchases:** none


## Frequently asked questions

### Is Gravity Duel free?

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

### Is Mech Boa free?

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

### Which has better reviews, Gravity Duel or Mech Boa?

Gravity Duel is rated higher. Gravity Duel averages 3.9 out of 5 from 17 ratings, while Mech Boa averages 3.7 from 142 ratings.

### Do Gravity Duel or Mech Boa have ads?

Both Gravity Duel and Mech Boa show ads.

### Which is updated more often, Gravity Duel or Mech Boa?

Gravity Duel ships an update every 3 weeks, and Mech Boa every 5 days. Most recently, Gravity Duel was updated on September 20, 2026 and Mech Boa on September 21, 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.*