AdMob vs Alternatives: Maximizing Your Ad Revenue

Google AdMob is the default choice for mobile app advertising — and for good reason. It has the largest advertiser demand pool, tight Android integration, and a familiar interface for anyone who's used Google products. But "default" doesn't mean "optimal." The mobile ad ecosystem includes dozens of networks, each with different strengths in ad formats, fill rates, eCPMs, and geographic coverage.

Choosing the right ad network — or more likely, the right combination of networks through mediation — can increase your ad revenue by 30-100% compared to running AdMob alone. This guide compares AdMob against its major alternatives and explains how to build a mediation stack that maximizes every impression.

Understanding Ad Network Economics

How Ad Networks Generate Revenue

Ad networks connect two sides of a marketplace:

Advertisers (demand side) want to show their ads to specific audiences. They bid for impressions based on user demographics, behavior, and context.

Publishers (supply side — that's you) have users viewing screens in their apps. Each screen view is a potential ad impression that can be sold to the highest bidder.

The network's role: Match the highest-paying advertiser to each impression, take a revenue share (typically 30-40%), and pay the publisher the remainder.

Key Metrics

Why No Single Network Wins

No single ad network has the highest eCPM for every impression. Network A might pay $15 eCPM for a US female 25-34 user on a fitness app, while Network B pays $20 for the same impression. For the next impression — a male 18-24 user in Brazil — the rankings might reverse.

This is why mediation exists: it queries multiple networks for each impression and selects the highest bidder.

Google AdMob

Overview

Market position: Largest mobile ad network by publisher adoption. Part of Google's advertising ecosystem.

Strengths:

• Massive advertiser demand pool (Google Ads + Google Ad Manager)
• Highest fill rates globally (near 100% in most markets)
• Excellent Android integration (native to Google ecosystem)
• Free mediation platform (AdMob Mediation)
• Bidding support through Open Bidding
• Robust reporting and analytics
• Compliance with Google Play policies by default
• Strong brand safety controls

Weaknesses:

• Not always the highest eCPM (especially for rewarded video)
• Mediation platform favors Google demand
• Revenue reporting can lag 24-48 hours
• Account suspension risk (strict policy enforcement, sometimes opaque)
• Limited direct support for smaller publishers

Best ad formats: Banner, interstitial, native. Competitive but not always top for rewarded video.

Typical eCPMs (US):

• Banner: $0.30–$1.50
• Interstitial: $3.00–$8.00
• Rewarded Video: $8.00–$18.00
• Native: $2.00–$8.00

When AdMob Is Sufficient Alone

• Your app has <10,000 DAU (mediation complexity isn't worth the effort at small scale)
• You're a solo developer wanting minimal ad implementation complexity
• Your app is Android-only and you want the simplest path

Major AdMob Alternatives

AppLovin (MAX Mediation)

Market position: One of the largest mobile ad networks, especially strong in gaming. Also owns Adjust (MMP) and acquired MoPub's publisher base.

Strengths:

• Consistently high eCPMs for rewarded video and interstitials
• MAX mediation platform is considered best-in-class
• In-app bidding support for 20+ networks
• Strong gaming vertical performance
• APPLOVIN exchange provides significant demand
• SparkLabs creative optimization tools
• Real-time revenue reporting

Weaknesses:

• Gaming-heavy optimization may underperform for non-gaming apps
• MAX mediation pushes AppLovin demand (potential bias)
• Smaller publisher support can be limited
• Learning curve for MAX dashboard

Typical eCPMs (US):

• Rewarded Video: $12.00–$30.00
• Interstitial: $5.00–$15.00
• Banner: $0.50–$2.00

Best for: Gaming apps, apps prioritizing rewarded video revenue, developers wanting best-in-class mediation.

Unity Ads

Market position: Dominant in gaming, part of the Unity development ecosystem.

Strengths:

• Extremely strong for gaming apps (developers already use Unity engine)
• High eCPMs for rewarded video in games
• Playable ad format support
• Tight integration with Unity game engine
• Strong in US, Europe, and Japan

Weaknesses:

• Primarily gaming-focused — limited performance for non-gaming apps
• Smaller advertiser pool than Google or Meta
• Fill rates can be lower outside gaming verticals
• Limited ad format variety (focuses on video)

Typical eCPMs (US, gaming):

• Rewarded Video: $12.00–$25.00
• Interstitial Video: $6.00–$15.00

Best for: Games built on Unity, any gaming app prioritizing video ad revenue.

Meta Audience Network (Facebook)

Market position: Leverages Meta's massive advertiser base and targeting data.

Strengths:

• Access to Meta's advertiser demand (Facebook, Instagram advertisers)
• Strong user targeting based on Meta's data
• Good performance across diverse app categories (not just gaming)
• Native ad format is particularly strong
• Competitive interstitial eCPMs

Weaknesses:

• Requires Facebook SDK integration (privacy/size concerns)
• Performance significantly impacted by ATT on iOS (reduced targeting precision)
• Fill rates can be inconsistent in smaller markets
• Recent years have seen declining eCPMs post-ATT
• Meta occasionally deprecates features or changes policies

Typical eCPMs (US):

• Native: $4.00–$12.00
• Interstitial: $4.00–$10.00
• Rewarded Video: $8.00–$20.00
• Banner: $0.50–$2.00

Best for: Non-gaming apps with diverse audiences, apps already integrating Facebook SDK, native ad placements.

ironSource

Market position: Major gaming-focused ad network. Merged with Unity in 2022.

Strengths:

• LevelPlay mediation platform (strong competitor to MAX)
• Excellent rewarded video performance
• Strong waterfall and bidding optimization
• Good A/B testing tools for ad placements
• Gaming expertise and advertiser relationships
• Cross-promotion capabilities

Weaknesses:

• Gaming-heavy focus, less optimized for non-gaming
• Integration with Unity creates potential conflict-of-interest questions
• Dashboard can be complex for beginners
• Smaller demand pool than Google or Meta

Typical eCPMs (US, gaming):

• Rewarded Video: $10.00–$25.00
• Interstitial: $5.00–$12.00

Best for: Mobile games, especially those using ironSource's LevelPlay mediation.

Chartboost

Market position: Gaming-focused network owned by Zynga/Take-Two.

Strengths:

• Direct deals marketplace (connect directly with other game developers)
• Strong cross-promotion tools
• Good interstitial and rewarded video performance for games
• Transparent pricing model

Weaknesses:

• Limited to gaming vertical
• Smaller scale than AppLovin, Unity, or ironSource
• Less competitive eCPMs in non-US markets

Best for: Game studios wanting direct deal opportunities with other developers.

InMobi / Vungle

Market position: Mid-tier networks with specific strengths.

InMobi: Strong in India and emerging markets. Good native ad performance. Competitive for apps with Southeast Asian/Indian audiences.

Vungle (now Liftoff): Video-focused with strong creative optimization. Good rewarded video eCPMs. Strong programmatic buying.

Best for: Apps with significant non-US traffic (InMobi) or video-heavy ad strategies (Vungle/Liftoff).

Comparison Matrix

Mediation: The Revenue Multiplier

What Is Ad Mediation?

Mediation is a technology layer that sits between your app and multiple ad networks. When your app has an ad impression to fill, the mediation platform queries multiple networks and selects the highest-paying option.

Without mediation: You use one network (e.g., AdMob). You get whatever eCPM AdMob offers for each impression.

With mediation: You connect 5-10 networks. For each impression, the mediation platform selects the highest bidder. Your effective eCPM increases because you're always getting the best available price.

Typical revenue improvement from mediation: 30-100% over a single network.

Mediation Platforms

AdMob Mediation:

• Free, integrated with AdMob
• Supports waterfall and Open Bidding
• Easy setup for AdMob users
• Potential bias toward Google demand

AppLovin MAX:

• Most sophisticated bidding technology
• Supports 20+ bidding networks
• Real-time analytics and A/B testing
• Considered best-in-class for gaming

ironSource LevelPlay:

• Strong waterfall optimization
• Good A/B testing tools
• Gaming-optimized
• Now integrated with Unity

Waterfall vs. Bidding

Waterfall (legacy): Networks are ranked in a fixed priority order based on historical eCPM. The mediation platform calls the top network first; if it doesn't fill, it moves to the next.

• Pros: Simple to understand and set up
• Cons: Static ordering means you miss higher bids from lower-ranked networks. Requires manual optimization.

In-app bidding (recommended): All participating networks bid simultaneously in real-time for each impression. The highest bidder wins.

• Pros: Always selects the highest payer. No manual optimization needed. Fairer competition.
• Cons: Not all networks support bidding. Setup can be more complex.

Hybrid: Most modern setups use bidding for networks that support it and waterfall for those that don't. This captures the best of both approaches.

Optimal Mediation Stack

For gaming apps:

1. AppLovin MAX (mediation)
2. Bidding: AppLovin, Meta, Unity Ads, ironSource, AdMob, Vungle/Liftoff
3. Waterfall fallback: Chartboost, InMobi, AdColony

For non-gaming apps:

1. AdMob Mediation or AppLovin MAX
2. Bidding: AdMob, Meta, AppLovin, Vungle/Liftoff
3. Waterfall fallback: InMobi, Unity Ads

For apps with emerging market traffic:

• Add InMobi (strong India, SEA fill rates)
• Add local networks for specific markets (Yandex for Russia, LINE Ads for Japan)

Implementation Best Practices

Ad Placement Strategy

Rewarded video (highest eCPM):

• Offer as optional: "Watch a video to earn X"
• Place at natural reward moments (extra lives, bonus content, premium feature preview)
• Limit to 3-5 per session to prevent fatigue

Interstitial (medium eCPM):

• Show at natural break points (level complete, article finish, tab switch)
• Never show during active engagement
• Frequency cap: 2-4 per session, minimum 60 seconds apart

Banner (lowest eCPM but consistent):

• Place at screen bottom (standard) or top (less common)
• Use adaptive banners that adjust to screen width
• 30-60 second refresh for optimal revenue without annoyance

Native (variable eCPM):

• Blend into content feeds naturally
• Match your app's visual style
• Label as "Sponsored" or "Ad" for compliance

Format Revenue Optimization

Maximize ARPDAU by optimizing your format mix:

1. Start with rewarded video. Highest eCPM, best user experience. Maximize rewarded ad opportunities.
2. Add interstitials strategically. 2-3 per session at natural breaks.
3. Use banners for fill. Consistent, low-impact revenue on screens where other formats aren't appropriate.
4. Test native if applicable. Works well in content feeds and list views.

A/B Testing Ad Configuration

Test systematically:

• Interstitial frequency: 2 vs. 3 vs. 4 per session
• Rewarded ad placement: Different reward offers and trigger points
• Banner position: Top vs. bottom
• Network configuration: Different bidding floors and waterfall orders

Measure: ARPDAU (primary), retention rate (secondary — ensure ads aren't hurting engagement).

Common Mistakes

Using only one ad network. Even if AdMob is your primary, adding 2-3 additional networks through mediation typically increases revenue 30-50%.

Ignoring rewarded video. It's the highest-eCPM format with the best user experience. If your app has any natural reward moment, implement rewarded video.

Over-monetizing. Showing an interstitial every 30 seconds will destroy retention. Short-term revenue gains are wiped out by DAU decline.

Not implementing mediation. The revenue improvement from mediation is too significant to ignore for any app with 5,000+ DAU.

Setting and forgetting. Ad revenue optimization is ongoing. Review network performance monthly, adjust waterfall/bidding configuration, and test new networks quarterly.

Ignoring iOS vs. Android differences. eCPMs differ significantly between platforms. iOS typically generates 2-3x higher eCPMs than Android. Optimize separately.

Conclusion

AdMob is a solid starting point, but treating it as your only ad revenue source leaves significant money on the table. The optimal ad monetization strategy uses mediation to combine multiple networks — ensuring every impression goes to the highest bidder.

For most apps, start with AdMob plus 2-3 additional networks through either AdMob Mediation or AppLovin MAX. Prioritize rewarded video for the highest eCPMs and best user experience. Add interstitials at natural break points and banners for consistent fill. Test, measure, and optimize monthly.

The difference between a single-network setup and a well-optimized mediation stack can be 50-100% more revenue from the same user base — making mediation optimization one of the highest-ROI activities for any ad-supported app.