# AppLovin MAX + Indie Exchange for Unity

> Use Indie Exchange with AppLovin MAX in Unity for cross-promotion, traffic exchange, and optional interstitial no-fill recovery.

Keep MAX as your mediation system and add Indie Exchange at the game level. MAX still selects among its configured demand sources when your game hands the break to MAX.

Indie Exchange Unity SDK 0.5.3 (preview).

These are integration patterns for an existing ad manager, not complete provider SDK setups or certification of every SDK/version combination. Keep your provider's consent, initialization, loading, close, failure, and cleanup handlers. Use one shared guard for the entire ad break, including your provider's asynchronous display, so repeated taps cannot open competing ads. Call Indie Exchange on Unity's main thread; dispatch provider callbacks there when needed.

[Download Unity package](https://indie-exchange.com/downloads/IndieExchange-0.5.3.unitypackage) | [Unity SDK on GitHub](https://github.com/samdogsoft/indie-exchange-unity)

## Set up Indie Exchange once

Keep your existing ad integration. Add Indie Exchange as another option at the same ad breaks.

- Add the game on Indie Exchange and copy its Game ID. Create an ad group with the formats you need.
- In the game's Advertising settings, enable each format with an overall share above 0%. Choose the public/personal split and any personal ad groups. Settings refresh on the next game launch.
- Install the Unity package, open Tools > Indie Exchange > Setup, and enter Game ID. Turn on Test Mode during development. Unity 2022.3 or newer is required; validate your target Unity version and devices.
- After your consent and age flow permits ad requests, initialize Indie Exchange and your existing provider independently. Let both preload ahead of the ad break.

```csharp
using IndieExchange;

// Once, after consent allows ad requests:
IndieAds.Initialize();
```

Editor Test Mode displays offline samples. Device Test Mode previews eligible server creatives without exchange credits. Test your other provider using its own test mode too, then turn test modes off for release.

## Add cross-promotion at your interstitial break

Use this fragment inside your existing guarded, async ad-break handler. maxAdUnitId is your configured MAX interstitial ad unit ID; MAX should already be initialized and preloading.


```csharp
if (await IndieAds.TryShowInterstitialAsync())
    return;

if (MaxSdk.IsInterstitialReady(maxAdUnitId))
{
    MaxSdk.ShowInterstitial(maxAdUnitId);
    return;
}

await IndieAds.TryShowInterstitialAsync(bypassPercentage: true);
```

There is no Indie Exchange MAX adapter to add to a waterfall. This pattern gives your game control before calling MAX.

## Keep your AppLovin MAX lifecycle

Use your existing provider's callbacks to finish the break and prepare the next ad.

- Keep MAX's hidden and display-failed handlers connected. Use them to finish the current attempt and request the next ad.
- Keep load retries separate from showing ads. A preload failure can happen outside an ad break and should not immediately show an Indie ad.
- If you enable recovery after MAX fails to display, accept only the current opportunity's failure before anything opens. Ignore individual mediated-network failures.
## Keep one ad in charge of each break

An Indie Exchange full-screen call returns true after a displayed ad closes, including an early exit. False means it did not display an ad, so your normal provider can take over.

- Initialize and preload your normal provider independently. An Indie Exchange configuration failure or unavailable cached ad must not prevent your provider's own load or show path.
- Only attempt recovery when no ad has opened and the original break is still active. A background load failure is not a reason to interrupt the player with an ad.
- Keep your shared ad-break guard held until the selected provider closes or definitively fails before opening. Ignore stale or duplicate callbacks. Never show a second ad after a successful display.
- When both sources are unavailable, continue the game. Do not loop, wait indefinitely, or promise 100% fill.
bypassPercentage: true makes one recovery attempt using a ready Indie ad. It does not fetch an ad or override a live format set to 0%. It can increase the actual Indie share above the scheduled percentage.

## Banners and rewarded ads work alongside it too

Choose one banner at a time and hide it when its screen closes. Offer rewarded ads only after the player accepts a reward, and grant the reward only from the selected provider's earned-reward callback. The shared banner and rewarded guide covers these flows.

## Next steps

- [Unity setup and API guide](https://indie-exchange.com/docs)
- [All integration guides](https://indie-exchange.com/integrations)
- [Official Unity SDK](https://github.com/samdogsoft/indie-exchange-unity)

- [AppLovin MAX interstitial documentation](https://support.applovin.com/en/max/unity/ad-formats/interstitial-ads)

Human-readable page: https://indie-exchange.com/integrations/applovin-max

Provider names identify their respective products. Indie Exchange is an independent service, not an official provider integration or endorsement.