AppLovin MAX Integration in Mobile Application
AppLovin MAX is an in-app bidding mediator, not just an advertising network. The difference is fundamental: instead of waterfall auction (sequential network review by eCPM floor), MAX conducts real-time bidding between all connected networks simultaneously. In practice, this provides 95%+ fill rate and eCPM 15–30% higher than standard AdMob waterfall.
SDK Initialization
// Android — AppLovin SDK
AppLovinSdk.initializeSdk(this) { sdkConfig ->
// SDK initialized, can load ads
initializeAds()
}
// Optionally — pass User ID for server-side verification of rewarded
AppLovinSdk.getInstance(context).settings.userIdentifier = currentUser.id
Key sdk_key is written in AndroidManifest.xml as meta-data. On iOS — in Info.plist.
Connected Networks in MAX
MAX supports 20+ advertising networks: Google AdMob, Meta Audience Network, Unity Ads, IronSource, Vungle, Mintegral, Pangle and others. Each network is connected via a separate adapter:
// build.gradle — example of adapter connection
implementation 'com.applovin.mediation:google-adapter:23.x.x'
implementation 'com.applovin.mediation:facebook-adapter:6.x.x'
implementation 'com.applovin.mediation:unityads-adapter:4.x.x'
Each adapter must be initialized according to network requirements (App ID, Placement ID). Adapter versions must be compatible with MAX SDK version — must update together.
Rewarded Interstitial — Format with Highest eCPM
val rewardedAd = MaxRewardedAd.getInstance("YOUR_AD_UNIT_ID", activity)
rewardedAd.setListener(object : MaxRewardedAdListener {
override fun onAdLoaded(ad: MaxAd) { isReady = true }
override fun onAdLoadFailed(adUnitId: String, error: MaxError) {
// MAX automatically retries — no need for manual handling
}
override fun onUserRewarded(ad: MaxAd, reward: MaxReward) {
grantReward(reward.amount, reward.label)
}
override fun onAdHidden(ad: MaxAd) {
rewardedAd.loadAd() // Load next one in advance
}
})
rewardedAd.loadAd()
MAX automatically manages retry logic on load errors — no need to implement your own exponential backoff.
Server-side Reward Verification
MAX supports SSV (Server-Side Verification) for rewarded ads: after viewing, MAX sends POST to specified server with encrypted parameters (user_id, reward, timestamp, HMAC signature). Server verifies signature and awards reward. This protects against client fraud: user cannot award themselves without actual viewing.
A/B Testing and Analytics
AppLovin Dashboard shows eCPM for each network in mediation, bidding auction win rate, DAU×eCPM. Built-in A/B test allows comparing mediation configurations without deploy.
AppLovin MAX integration makes sense when current fill rate is below 90% or when already using 2+ advertising networks — MAX replaces manual waterfall with single SDK.
Timelines — 2–3 days: MAX SDK integration, connection of 3–5 networks with adapters, SSV setup, testing on real devices via test Ad Unit IDs.