# Backstorm Attack vs Sci

The clearest difference is in-app purchases: Sci at none against Backstorm Attack's 10. Backstorm Attack's advantage is update cadence (every 11 days vs every 58 months) and iOS requirement (9.0 vs 11.0). On price, ads and device support there is nothing between them.

Both are free to download. Backstorm Attack sells 10 one-off in-app purchases. Sci asks for nothing beyond the download.

Backstorm Attack ships an update every 11 days, Sci every 58 months. Both last shipped on October 7, 2026.

## The numbers

| Metric | Backstorm Attack | Sci |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/backstorm-attack-endless-rpg-war-runner/id1222575451/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 58 months |
| Monetization | Free with in-app purchases | — |
| Size | 165 MB | 41 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod, Apple TV | iPhone, iPad, iPod, Apple TV |
| Age rating | 12+ | 12+ |
| Developer | [Appgeneration Software](https://appshunter.io/developer/386316599) | [Marek Skreko](https://appshunter.io/developer/1558127762) |

## What reviewers say

### Backstorm Attack

[App page](https://appshunter.io/ios/app/backstorm-attack-endless-rpg-war-runner/id1222575451)

Embark on a counter-terrorist mission to save the world in this action-packed runner game. Equip powerful weapons, face endless waves of enemies, and complete daily challenges to earn rewards and upgrade your character. Experience non-stop shooting fun with RPG elements.

**Highlights:** Counter-terrorist missions, Endless runner gameplay, RPG elements and power-ups, Daily missions and rewards, Multiplayer mode, Leaderboards and achievements

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 80 Coins | $0.99 | one-time |
| Experience Booster 6H | $0.99 | one-time |
| Reward Booster 1 Day | $0.99 | one-time |
| Experience Booster 24H | $1.99 | one-time |
| Reward Booster 3 Days | $1.99 | one-time |
| Experience Booster 72H | $2.99 | one-time |
| Reward Booster 7 Days | $2.99 | one-time |
| 500 Coins | $4.99 | one-time |
| 6500 Coins | $49.99 | one-time |
| 14000 Coins | $99.99 | one-time |


### Sci

[App page](https://appshunter.io/ios/app/sci-fi-platformer/id1558127760)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Backstorm Attack free?

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

### Is Sci free?

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

### Do Backstorm Attack or Sci have ads?

Neither Backstorm Attack nor Sci shows ads.

### Which is updated more often, Backstorm Attack or Sci?

Backstorm Attack ships an update every 11 days, and Sci every 58 months. Most recently, Backstorm Attack was updated on October 7, 2026 and Sci on October 7, 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.*