# Alien Annihilation Agent vs nBase

The clearest difference is rating: Alien Annihilation Agent at 5.0 against nBase's 3.7. nBase's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Alien Annihilation Agent holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Alien Annihilation Agent ships an update every 3 weeks, nBase every 11 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Alien Annihilation Agent | nBase |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/alien-annihilation-agent/id6449690896/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/nbase-1990s-style-rts/id6483005139/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Monetization | Ad-supported | **Free** |
| Size | 239 MB | 245 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [GRAVITY NEOCYON](https://appshunter.io/developer/1561085852) | [Kareem Belgharbi](https://appshunter.io/developer/1493334504) |

## What reviewers say

### Alien Annihilation Agent

[App page](https://appshunter.io/ios/app/alien-annihilation-agent/id6449690896)

Defend humanity's last hope by strategically deploying and upgrading defensive towers. Prevent waves of alien creatures from reaching your base in this engaging mobile strategy game.

**Highlights:** Strategic tower deployment, Tower upgrades for enhanced power, Prevent enemy base invasion, Intuitive interface, Short play sessions, Mobile-friendly gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### nBase

[App page](https://appshunter.io/ios/app/nbase-1990s-style-rts/id6483005139)

Experience a classic real-time strategy game reminiscent of 1990s PC titles. Engage in fast-paced battles with diverse units, strategic base building, and multiple objectives. Play solo against AI or challenge others in online multiplayer.

**Highlights:** Classic PC RTS gameplay, Offline play against AI, Online multiplayer PvP, Diverse unit types (aircraft, ships, tanks), Fast-paced gameplay, Strategic resource management, Multiple game objectives

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Alien Annihilation Agent free?

Alien Annihilation Agent is free to download, with no in-app purchases.

### Is nBase free?

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

### Which has better reviews, Alien Annihilation Agent or nBase?

Alien Annihilation Agent is rated higher. Alien Annihilation Agent averages 5.0 out of 5 from 1 ratings, while nBase averages 3.7 from 3 ratings.

### Do Alien Annihilation Agent or nBase have ads?

Alien Annihilation Agent shows ads; nBase does not.

### Which is updated more often, Alien Annihilation Agent or nBase?

Alien Annihilation Agent ships an update every 3 weeks, and nBase every 11 days. Most recently, Alien Annihilation Agent was updated on October 24, 2026 and nBase on October 24, 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.*