# Faux Gravity vs Sudoku 13

The clearest difference is in-app purchases: Sudoku 13 at none against Faux Gravity's 8. Sudoku 13 also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 24 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Faux Gravity sells 8 one-off in-app purchases. Sudoku 13 asks for nothing beyond the download.

Faux Gravity ships an update every 24 months, Sudoku 13 every 3 weeks. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Faux Gravity | Sudoku 13 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (4 ratings)](https://appshunter.io/ios/app/faux-gravity/id1483097313/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 24 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 119 MB | 24 MB |
| Requires iOS | 12.0 | **11.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Su Min Kim](https://appshunter.io/developer/1261980025) | [Mohamed walid Benabderrahmane](https://appshunter.io/developer/421722788) |

## What reviewers say

### Faux Gravity

[App page](https://appshunter.io/ios/app/faux-gravity/id1483097313)

Build a planetary defense system to fend off alien invaders in this real-time strategy survival game. Collect resources, upgrade your defenses, and launch devastating attacks to protect your planet. Compete on global leaderboards for the longest survival.

**Highlights:** Build and upgrade defense systems, Collect gold and expand planet, Launch nuclear missiles, Control spacecrafts, Randomly generated enemies, Global leaderboards

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gems 10 | $0.99 | one-time |
| Gems 20 | $1.99 | one-time |
| Gems 40 | $3.99 | one-time |
| Remove All Ads | $9.99 | one-time |
| Gems 110 | $9.99 | one-time |
| Gems 230 | $19.99 | one-time |
| Gems 600 | $48.99 | one-time |
| Gems 1500 | $99.99 | one-time |


### Sudoku 13

[App page](https://appshunter.io/ios/app/sudoku-13/id1591801656)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Faux Gravity free?

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

### Is Sudoku 13 free?

Sudoku 13 is free to download, with no in-app purchases.

### Do Faux Gravity or Sudoku 13 have ads?

Faux Gravity shows ads; Sudoku 13 does not.

### Which is updated more often, Faux Gravity or Sudoku 13?

Faux Gravity ships an update every 24 months, and Sudoku 13 every 3 weeks. Most recently, Faux Gravity was updated on October 24, 2026 and Sudoku 13 on October 22, 2026.

---

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