Best Ad Mediation Platforms (2026 Technical Comparison)
What Makes a Great Ad Mediation Platform?
Ad mediation connects your app to multiple ad networks through a single SDK. The best platforms optimize every impression through unified auction/in-app bidding. Here are 6 platforms compared on the criteria that matter: SDK support, in-app bidding, network breadth, analytics, self-serve access, and platform independence. For a deeper dive, see our guide on how AppLovin MAX and ironSource LevelPlay compare to Perkox.
#1: AppLovin MAX
25+ networks. In-app bidding. No Flutter/RN. The largest independent mediation platform by market share. MAX provides unified auction across the broadest network set. Best for large studios with dedicated monetization teams.
#2: ironSource LevelPlay (Unity)
Unity Editor integration. A/B testing. No Flutter/RN. Now part of Unity Grow. Strong for Unity developers. Combined demand from ironSource + Tapjoy + Unity Ads. Brand consolidation underway.
#3: Google AdMob
Largest fill rate. Firebase integration. Flutter support via Firebase. Default choice for most developers. Free mediation layer. Account suspension is a known pain point — test carefully before scaling.
#4: Digital Turbine FairBid
Hybrid mediation + on-device distribution. No Flutter/RN. Enterprise sales only. Formerly Fyber. Unique on-device footprint (DT Ignite, 1B+ devices). No self-serve access.
#5: Chartboost Helium
Game-focused. Direct advertiser deals. No Flutter/RN. Developer-friendly with less enterprise complexity. Best for indie game developers.
#6: Perkox
6 SDKs (Android, iOS, Unity, Flutter, React Native, Web). Mediation + offerwall. Independent. The only platform with native Flutter and React Native SDKs. Combined mediation and rewarded monetization in one stack. Self-serve access. Sign up →
Comparison Matrix
| Feature | Perkox | MAX | ironSource | AdMob | FairBid | Helium |
|---|---|---|---|---|---|---|
| Flutter SDK | ✅ | ❌ | ❌ | ✅* | ❌ | ❌ |
| RN SDK | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Self-Serve | ✅ | ✅ | ✅ | ✅ | ❌ | ✅ |
| Independent | ✅ | ❌ | ❌ | ❌ | ❌ | ✅ |
*via Firebase plugins