How do I find reliable rewarded ad networks for a mobile game that needs high fill rates and low-latency delivery?

To find reliable rewarded ad networks for a mobile game with high fill rates and low-latency delivery, focus on measurement, testing, and ad mediation rather than picking a network based on claims alone.

What to look for

Prioritize networks that have:

• Strong rewarded inventory in your target geographies
• Low latency ad serving and fast load times
• High fill rate and stable eCPM
• Good SDK reliability and frequent updates
• Mediation support so you can add multiple networks and optimize automatically
• Transparent reporting on fill, latency, timeout, and revenue

How to evaluate networks

1) Define your requirements

Before testing, decide:

• Target countries
• Android, iOS, or both
• Minimum acceptable:
  • fill rate
  • ad load latency
  • show rate
  • error rate
  • eCPM

2) Use an ad mediation platform

Use a mediator like:

• AppLovin MAX
• Google AdMob Mediation
• Unity LevelPlay (ironSource)

Why this helps:

• You can connect several networks
• Automatically route traffic to the best-performing source
• Reduce dependency on one network
• Improve fill and latency through bidding/waterfall optimization

3) Run A/B or split testing

Test each network or mediated setup on real traffic:

• Compare by region, device type, app version, and session length
• Measure:
  • fill rate
  • latency to first ad response
  • time to show
  • reward completion rate
  • timeouts and no-fill responses
  • crash rate or SDK issues

4) Check SDK performance and support

A good network should provide:

• Stable SDK with minimal app size impact
• Clear documentation
• Responsive technical support
• Compatibility with your game engine
• Compliance tools for consent and privacy regulations

5) Review reputation and operational quality

Look for:

• Developer feedback on forums and communities
• Case studies from similar games
• Network uptime and incident history
• Payment reliability and minimum payout terms

Questions to ask ad networks

When talking to a network or sales rep, ask:

• What is your rewarded ad fill rate in my top countries?
• What are your average ad response times?
• Do you support bidding or only waterfalls?
• What is your timeout recommendation?
• How do you handle no-fill and fallback?
• What fraud detection and brand-safety tools do you use?
• How often do you update the SDK?
• Can you share benchmarks for games similar to mine?

Best practice setup

For a game needing both high fill and low latency, a common setup is:

• Use one mediation platform
• Add 3–6 reward-focused networks
• Enable bidding where available
• Set sensible timeouts
• Use fallback networks for regions where primary demand is weaker

Shortlist approach

Start by testing a mix of:

• Large general networks
• Rewarded-video-specialized networks
• Networks strong in your primary geographies

Then keep the ones that perform best on:

1. Fill rate
2. Latency
3. Revenue
4. Stability

If you want, I can also give you:

• a checklist for evaluating ad networks
• a recommended stack for rewarded ads
• or a comparison of major mediation platforms.