> ## Documentation Index
> Fetch the complete documentation index at: https://docs.aiderx.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Why A2?

> Why platform companies choose A2, and the results it has delivered

## Pain points for platform companies

Many platform companies face the following problems in their advertising business.

### Difficulty using 1st party data

* They can't use the user data they hold effectively for advertising
* Privacy concerns when providing data to external ad networks
* Risk of data leaking outside and being used by competitors

### Saturated ad inventory

* Existing ad placements have hit their revenue ceiling
* Hard to grow revenue without developing new placements
* Inefficient ad source management with a waterfall setup

### Declining ad performance

* CTR/CVR drops due to poor targeting accuracy
* Lower advertiser satisfaction → a vicious cycle of falling prices
* Optimization is limited by reliance on external solutions

***

## How A2 solves this

### Monetization

Start an advertising business right away, without complex development.

* Supports a variety of ad formats (banner, video, native)
* Real-time bidding (RTB) for the best ad performance and price
* Unified Auction to optimize revenue across all ad sources

### Precision targeting

Experience the power of first-party data (1st Party Data).

* **Audience targeting**: Define specific targets such as "men in their 20s who searched for sneakers in the last 30 days"
* **Contextually relevant ads**: Automatically match ads related to the product the user is currently viewing
* **Higher purchase conversion**: Predictions based on behavioral data such as interest, add-to-cart, purchase, churn, and clicks

### Data sovereignty

Fully internalize your data with an on-premise installation.

* Manage all ad and user data on your own infrastructure
* Use 1st party data without it leaving your environment
* Own your ad system as a technology asset

***

## Proven results

A2's ML targeting system has delivered proven results in real-world environments.

### ML targeting impact

| Metric | Improvement | Basis |
| - | - | - |
| **CTR** | 3–7x improvement | Public datasets |
| **ROAS** | 10x+ improvement | Using 1st party data |
| **CTR/eCPM** | \~2x improvement | Customer A/B test on identical impressions |

### Adoption

* Major platform companies in Korea have adopted A2
* Running in services with 3–7 million MAU

<Note>
  Specific customer names and detailed results are available through a sales inquiry.
</Note>

***

## Value for developers and technical teams

With A2, developers and technical teams can achieve the following.

| Goal | Description |
| - | - |
| **Data sovereignty** | Manage all ad and user data on your own infrastructure |
| **Technology ownership** | Internalize the ad system without external dependencies |
| **Flexible customization** | API-based extension and integration with existing systems |
| **Transparent operations** | Direct access to all logs and performance data |

<Tip>
  A2 provides a REST API and SDK so you can easily integrate with your existing systems.
  For details, see the [Developer Guide](/development/tutorial/en/get-token).
</Tip>


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