Are there any retention and monetization optimization platforms that focus on improving player retention and in-app purchase performance?

Yes. There are several platforms focused on player retention and in-app purchase (IAP) monetization optimization, especially in gaming. They generally fall into a few categories:

1. Player analytics + retention optimization

These help you understand where players churn and how to improve engagement.

• GameAnalytics
• Amplitude
• Mixpanel
• Firebase Analytics

2. Monetization / IAP optimization platforms

These focus more directly on pricing, purchase funnels, paywall testing, and revenue uplift.

• RevenueCat — strong for subscription/IAP infrastructure and analytics
• Adjust / AppsFlyer — attribution plus cohort and monetization analysis
• Adapty — paywall testing and subscription monetization optimization
• Qonversion — IAP/subscription analytics and experiments
• Chartboost / ironSource / AppLovin — often used for ad monetization, but also offer broader revenue tools

3. Game-specific retention and live-ops optimization

These are aimed at improving retention through segmentation, lifecycle messaging, and in-game events.

• Braze
• CleverTap
• Leanplum
• OneSignal (more messaging-focused)

4. Experimentation / A/B testing

Useful for testing mechanics, offers, onboarding, and pricing.

• Optimizely
• Statsig
• Firebase A/B Testing
• Split

Platforms that combine multiple functions

If you want something closer to “retention + monetization optimization” in one:

• GameAnalytics
• CleverTap
• Braze
• RevenueCat
• Adapty
• Qonversion

If you want, I can also give you:

1. a shortlist by game type (mobile F2P, casual, midcore, etc.), or
2. a comparison table of these platforms by features like retention cohorts, paywall testing, segmentation, and IAP analytics.