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# Creator Overlap

Find out how much of their audience two creators share — before you book both of them.

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## Overview

When you work with multiple creators in a single campaign, you're assuming you're reaching different people. Often, you're not. Creator Overlap lets you measure the shared audience between any two creators so you can make smarter decisions about who to include in a campaign.

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## Why it matters

If Creator A and Creator B share 40% of their audience, booking both means roughly 40% of your budget on Creator B is reaching people who already saw your message from Creator A. That's not necessarily bad — frequency can help — but it should be a deliberate choice, not a surprise.

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## How to use Creator Overlap

1. Open any creator's profile from [Creator Discovery](/docs/features/creator-discovery.md) or your saved lists
2. Click **Check Overlap**
3. Search for a second creator to compare against
4. Fair will calculate and display the overlap percentage

The result shows:

* **Overlap %** — the estimated percentage of audience shared between the two creators
* **Unique reach** — the audience each creator delivers that the other doesn't
* **Combined reach** — the total unduplicated reach if you book both

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## Overlap percentage guide

| Overlap | Interpretation                                                               |
| ------- | ---------------------------------------------------------------------------- |
| < 10%   | Minimal overlap — booking both maximises reach                               |
| 10–25%  | Some overlap — acceptable for most campaigns                                 |
| 25–40%  | Moderate overlap — consider whether the frequency benefit justifies the cost |
| > 40%   | High overlap — evaluate whether both creators are necessary                  |

{% hint style="info" %}
Overlap is not always bad. For product launches or brand awareness campaigns, reaching the same person multiple times through different trusted voices can strengthen recall. The key is knowing the number before you spend.
{% endhint %}

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## Overlap in campaign planning

You can check overlap between all creators in a draft campaign before it goes live. Fair will flag any pairs with overlap above a threshold you set (default: 25%).

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## Related

* [Creator Discovery](/docs/features/creator-discovery.md) — find creators
* [Analyser](/docs/features/analyser.md) — evaluate individual creator quality
* [Campaign Management](/docs/features/campaign-management.md) — manage your campaigns


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