Are there any fraud prevention and monetization optimization tools that focus on reducing ad fraud in mobile games?

Yes. There are several tools and platforms built specifically to help mobile game publishers reduce ad fraud and improve monetization quality. They generally fall into two buckets:

1) Ad fraud prevention / traffic quality tools

These focus on detecting invalid traffic, bot activity, click fraud, install fraud, and suspicious ad behavior.

Commonly used options include:

• Adjust – mobile measurement platform with fraud prevention features like install fraud detection and bot filtering.
• AppsFlyer – attribution and analytics with Protect360 for fraud detection and prevention.
• Singular – attribution and marketing analytics with fraud detection/quality monitoring.
• Branch – deep linking and attribution, with fraud and link-abuse protections.
• Kochava – attribution and analytics with fraud prevention and traffic quality tools.
• HUMAN Security (formerly PerimeterX) – bot detection and traffic protection, more common for broader digital fraud but relevant in some ad flows.
• Pixalate – ad fraud detection, quality measurement, and IVT/SIVT monitoring across mobile programmatic ads.

2) Monetization optimization / ad quality tools

These help maximize revenue while reducing bad ad behavior and improving ad mix, fill, and user experience.

Examples:

• Ad revenue mediation platforms like ironSource LevelPlay, AppLovin MAX, Google AdMob, and Unity LevelPlay.
  These are not fraud tools first, but they help optimize ad demand and can integrate quality controls.
• Ad quality and UX monitoring tools that detect aggressive, deceptive, or low-quality ads.
• Frequency capping, placement analytics, and waterfall/bidding optimization features within mediation platforms.

What to look for in a good solution

If your goal is specifically mobile games, look for tools that support:

• Install fraud detection
• Click injection / click flooding protection
• Bot and emulator detection
• IVT/SIVT reporting
• Geographic and device anomaly detection
• Ad revenue anomaly detection
• Publisher-side ad quality controls

Typical stack for mobile games

A common setup is:

• Attribution/fraud prevention: AppsFlyer, Adjust, Kochava, or Singular
• Ad monetization: AdMob, AppLovin MAX, ironSource LevelPlay, Unity LevelPlay
• Ad quality measurement: Pixalate or similar

If you want, I can also give you:

1. a comparison table of the top tools, or
2. a recommendation based on your game type (casual, hyper-casual, midcore, etc.).