AppLovin MAX vs Unity LevelPlay: An Honest Mediation Comparison for Apps at $10K+/Mo

AppLovin MAX holds 73% mediation share among top-downloaded mobile games. Unity LevelPlay (built on ironSource's bidder backend) holds 25% of top-grossing games. MAX has higher demand density and exclusive coupling with AppLovin ROAS UA campaigns. LevelPlay typically has better support access for mid-tier accounts and deeper Unity Engine integration. Switching at $10K+/mo is a 6-to-12-week instrumented test, not a cold swap.

The rest of this article is what I would tell a client who called me asking which platform to use. The vendor pages cannot give you this answer because they exist to acquire you as a customer. The newsletter comparisons are a step up but still avoid the hard parts. What follows is the operator view.

Why this comparison is hard to find honestly

Every comparison page in the SERP is written by a vendor, a vendor tool, or a light editorial piece that avoids the real tradeoffs. AppLovin's own blog argues for MAX. Unity's documentation makes LevelPlay sound like a cleaner choice for Unity games. The newsletter comparisons cover market caps and feature lists but stop short of telling you what actually breaks when you switch.

The operator question, the one apps at $10K+/mo are actually asking, sounds more like this:

• I am already live on MAX. What would I need to do, risk, and measure to know if LevelPlay is worth running alongside or switching to?
• I am on LevelPlay. AppLovin's UA team is telling me I am leaving revenue on the table. Is that true, and how much does it actually matter?
• What are the real differences in bidder count, bidder freshness, SDK overhead, and support quality?
• What is the right test to run before I commit to either platform?

This article is structured around those questions.

What these platforms actually are

Skip this section if you know the history. Read it if you do not.

AppLovin MAX is AppLovin's mediation layer. AXON 2 is the ML system behind their bidding. AppLovin acquired the Twitter / X first-party dataset in 2024 and uses it for audience targeting and bid pricing. MAX runs a unified auction across waterfall and in-app bidding partners. AppLovin restricts its ROAS UA campaigns to MAX publishers only, which is the most consequential coupling in mobile mediation today.

Unity LevelPlay is ironSource Mediation, rebranded after Unity acquired ironSource in 2022. The underlying bidder backend is still ironSource's original tech. The Unity acquisition added native Unity Editor integration and Unity's UA capabilities (Unity Vector launched in 2025) on top of the existing platform. When you read "LevelPlay" in 2026 docs, the technical heritage you are reading about is ironSource Mediation circa 2020 to 2022, with Unity's engineering layered in since.

Both platforms support hybrid mediation (waterfall plus in-app bidding running in the same auction framework). Both run their own demand alongside third-party demand. Both have dashboards, postback support, and SKAdNetwork integration. At a feature-list level, they look similar. The differences are in execution, market structure, and operator economics.

Market structure and what it means for your revenue

Public data from a 2025 sample of 368 games and 217 publishers (gamebizconsulting):

• MAX: 73.1% of top-downloaded games, 55% of top-grossing games
• LevelPlay: 5.7% of top-downloaded, 25% of top-grossing
• Host networks generate approximately 4x more revenue on their own mediation platform vs as a partner on someone else's
• AppLovin serves roughly 50% of impressions on MAX mediation
• Competing DSPs are charged a 5% fee to bid on MAX inventory

The first three numbers tell you the platform-share story. The last two tell you something more specific about the economics of running on MAX.

When you are on MAX, you are getting AppLovin's demand at full competitiveness. Every other DSP bidding on your MAX inventory is paying a 5% entry fee. That fee does not benefit you directly. What it does is make AppLovin's own demand look stronger relative to non-AppLovin demand in your auction. This is not fraud. It is platform design. But it is worth knowing when you interpret your dashboard and decide whether the demand mix you see is the demand mix you would get on a neutral platform.

The other consequential market structure point is the UA coupling. AppLovin restricts its ROAS-optimized UA campaigns to MAX publishers only. AppLovin's cost-per-install campaigns remain available on either platform. The ROAS-optimized buying, which is typically the most efficient buying for casual gaming at scale, is MAX-only. If your UA strategy depends on AppLovin ROAS, your mediation decision is also a UA decision. They are not separable.

The real differentiators (what the vendor pages don't compare)

Six variables matter at the operator level. The vendor pages cover one or two and skip the rest.

Bidder count and bidder freshness

MAX has a larger and more frequently refreshed bidder pool than LevelPlay. The reason is simple market structure: more DSPs integrate with MAX first because MAX reaches more inventory. When a new DSP enters mobile, MAX integration is a higher priority than LevelPlay integration. The result is that MAX captures incremental DSP demand faster.

For most of the world's games traffic (casual gaming, Tier 1 markets, US Android), MAX's bidder advantage is real and measurable at the eCPM level. For specific verticals or geographies where ironSource historically had strong relationships, some Asian markets and some midcore gaming segments, the gap narrows or sometimes reverses. The advantage is not absolute. It is concentrated in the segments AppLovin's UA business focuses on.

In-app bidding vs waterfall implementation

Both platforms support hybrid mediation. The implementation experience differs.

MAX's dashboard is designed around bidding-first workflows. Waterfall is still available but the default setup flow pushes bidding. Adapter update cadence is fast because partners prioritize MAX integration. For a new setup, MAX gets you live on bidding faster.

LevelPlay's waterfall configuration is more granular. Some operators prefer the control. In-app bidding integration with non-ironSource demand can be slower on adapter rollout. For a team that wants explicit waterfall control and is comfortable managing it, LevelPlay's interface is arguably more flexible.

SDK weight and integration friction

The MAX SDK is larger than most standalone adapters. Integration into Unity requires careful dependency management. There have been documented conflicts with specific Unity package versions in 2024 and 2025. Resolution is usually possible but the friction is real.

The LevelPlay SDK, as a Unity product, integrates with Unity Editor at a deeper level. Fewer dependency conflicts on Unity projects. The integration path is officially maintained as part of Unity's tooling rather than as a third-party SDK.

If you are building on Unity, LevelPlay's SDK integration is materially smoother. If you are on a custom native iOS / Android setup or on Cocos / Unreal, the integration parity is closer.

Reporting, postbacks, and SKAdNetwork support

MAX has a strong reporting dashboard. Revenue per DAU breakdowns are available. SKAdNetwork postback support is well-documented and mature. AppLovin invested early in iOS 14 attribution.

LevelPlay reports latency and fill rate metrics in the dashboard, which is a real advantage over MAX for operators tracking platform overhead. SKAdNetwork support was slower to mature but has improved post-Unity acquisition.

Both platforms have functional SKAdNetwork support. The real question is whether your postback pipeline is configured correctly on either. That is usually a setup problem at your end, not a platform limitation.

Customer support quality by account tier

This is the differentiator I hear about most often from clients in the $10K-$50K/mo range.

MAX support is tiered. Top-tier accounts ($100K+/mo, or accounts managed through agency partnerships) get dedicated account management and faster issue resolution. Mid-tier accounts ($10K to $100K/mo) often experience slower ticket resolution and less proactive account management. If you are not a priority account for MAX, the support experience during issues like bidder discrepancies or integration breaks can be frustrating.

LevelPlay is reported to be more accessible and responsive for mid-tier accounts. The ironSource heritage included a sales-focused culture that maintained account manager relationships at lower revenue tiers, and that culture has carried into the LevelPlay era.

This is not a permanent state. Both platforms can change support models. As of mid-2026, this is the pattern.

Migration cost and risk at $10K+/mo

Switching mediation platforms is not a toggle. It involves SDK swap, adapter reconfiguration, reporting pipeline changes, and a period where revenue is unstable because the new platform does not have your app's historical performance data.

The new platform's ML needs 2 to 4 weeks of data to optimize bidding for your specific app profile. During that window, eCPMs can drop 15 to 30% before recovering. At $10K/mo, a 20% revenue dip during a 4-week migration test costs roughly $2,500 to $4,000 in direct revenue plus engineering time. At $50K/mo, the same dip is $10K to $20K.

Nobody switches cleanly at this revenue level. The right approach is not a cold swap. It is running both platforms as parallel test instruments on a subset of traffic, measuring on revenue per DAU, then picking the winner per format and per geography. The honest answer is rarely "switch entirely." It is usually "MAX for rewarded video in the US, LevelPlay for interstitials in APAC," or some version of that segmentation.

The ROAS coupling problem and when it actually matters

The single most misunderstood decision variable in this comparison is the AppLovin UA / MAX mediation coupling.

AppLovin restricts its ROAS UA campaigns to MAX publishers only. This means:

• If you run UA on AppLovin and mediate on LevelPlay, AppLovin's ROAS algorithm is not available to you
• If you switch to LevelPlay for mediation while maintaining AppLovin UA spend, you lose access to the most efficient buyer in the market for many casual game verticals

This matters a lot when:

• Your app is a casual game with significant US Android traffic
• AppLovin is currently your top UA buyer by volume or by ROAS efficiency
• You are considering LevelPlay for operational reasons (SDK simplicity, Unity integration, support quality), not for revenue reasons

This matters less when:

• Your primary UA channels are not AppLovin (Meta, Google UAC, organic-dominant)
• Your app is a midcore or strategy title where AppLovin's UA advantage is smaller
• You are adding LevelPlay as a demand source rather than replacing MAX as your primary mediation layer

If AppLovin UA is materially driving your installs, the mediation question and the UA question are the same question. Do not evaluate them separately.

Verify the current ROAS-restriction policy at decision time. Platform policies move. As of mid-2026, the restriction holds.

The case for running both

The honest operator answer is rarely "pick one." The legitimate dual-platform architecture looks like this:

• MAX as the primary mediation layer for rewarded video in Tier 1 markets where AppLovin's demand density is highest
• LevelPlay for interstitials or banners in markets where ironSource's historical relationships are stronger
• Both running in parallel on a single format and a subset of placements before committing larger allocation
• Revenue per DAU as the measurement variable, not fill rate or eCPM in isolation

How to instrument it:

1. Assign MAX and LevelPlay to separate ad unit IDs for the same placement type
2. Split traffic at device level (50/50 or 70/30 to start)
3. Measure for at least 4 weeks to account for both platforms' optimization ramp
4. Evaluate revenue per DAU, not average eCPM (eCPM in isolation does not capture fill rate differences)

The dual-platform architecture adds operational complexity. You manage two SDKs, two dashboards, two support relationships, and two reporting pipelines. At $10K/mo it is worth considering. At $5K/mo it is probably not. At $50K+/mo it is the standard.

Which platform for which app type

The decision matrix, framed for the operator who needs to commit:

• Casual game, US Android, AppLovin UA as primary acquisition channel: MAX. UA coupling makes switching expensive. AppLovin demand density is highest for this profile.
• Unity-built game, limited SDK dev bandwidth: LevelPlay. Native Unity Editor integration reduces friction.
• Midcore or strategy game, global traffic: Test both. Less clear AppLovin demand advantage. ironSource relationships historically stronger in some markets.
• App at $10K-$50K/mo where support quality is a concern: LevelPlay. More accessible support at mid-tier than MAX.
• App at $100K+/mo with managed MAX account: MAX. At this tier MAX's account management and demand access are at full value.
• Publisher adding a second mediation layer: Add LevelPlay alongside MAX. Treat as demand diversity, not replacement.

These are starting points, not absolute rules. Your specific UA mix, format mix, and team bandwidth shift the answer.

How to evaluate the switch in your own app

The operator checklist for running a real test instead of a cold swap:

1. Define the test hypothesis specifically: "LevelPlay will generate equal or higher revenue per DAU on interstitial placements in [market] compared to MAX over 4 weeks."
2. Pick one format and one geography to test first. Do not run a full migration as a test.
3. Instrument separate ad unit IDs for each platform on the test placement.
4. Allocate 30 to 50% of test placement traffic to the challenger platform.
5. Run for at least 4 weeks. Longer if your DAU is below 10K because statistical noise dominates.
6. Measure revenue per DAU, not eCPM. Revenue per DAU captures both eCPM and fill rate in one number.
7. Check SKAdNetwork postback consistency across both platforms during the test. Discrepancies appear faster in a controlled test than in full-stack deployment.
8. Evaluate support responsiveness during the test period. A support issue during a live test is real signal about what production support will look like at steady state.

I have not seen a clean "one platform wins everything" outcome in the apps I have worked with. The test usually surfaces a format-level or geography-level winner, not a platform-level one.

What changes if you do switch fully

For the reader who is seriously considering full platform migration, here is the honest cost picture.

• SDK replacement: 1 to 2 sprints depending on complexity of existing adapter setup
• Adapter reconfiguration: each demand partner needs re-authentication and re-configuration on the new platform
• Historical data loss: the new platform does not inherit your app's performance history. Its ML starts from scratch.
• Revenue dip window: plan for 2 to 4 weeks of sub-optimal eCPM while the new platform's algorithm learns your traffic
• Reporting pipeline: if you have custom postbacks or analytics integrations, they need rebuilding for the new platform's schema
• Direct-sold campaigns: any direct deals or PMP / private marketplace deals are platform-specific and need renegotiation

At $10K/mo, the all-in migration cost (engineering time plus revenue dip plus testing period) is typically $5K to $15K equivalent. At $50K/mo it scales accordingly. This is not a reason to never switch. It is a reason to validate with a proper test before committing.

What to do this week

If you are working through this decision right now:

1. Map your current UA spend by network. If AppLovin UA is more than 20% of your spend, the ROAS coupling is part of the decision.
2. Map your current revenue by format. If rewarded video is more than 40% of revenue, MAX's rewarded advantage matters more than for banner-heavy apps.
3. Pick one format and one geography for an actual test before any platform-level decision.
4. Decide what "win" looks like before the test starts. Revenue per DAU lift threshold (e.g., 10%+ over 4 weeks) prevents post-hoc rationalization.
5. Allocate engineering bandwidth honestly. A migration test that ships in 2 weeks is not the same as one that ships in 6.

Designing the test architecture and interpreting the results is the part most operators either skip or get wrong. If your app is at $10K+/mo and you are working through this decision, book a 30-minute call. I will look at your specific setup, your UA mix, and your current platform performance, then tell you what test to run and what it should measure.

Frequently asked questions

Is AppLovin MAX better than Unity LevelPlay?

For most US casual games with AppLovin as a UA partner, MAX has a meaningful demand density advantage. For Unity-built games where SDK integration complexity is a concern, or for apps where support quality at mid-tier accounts matters, LevelPlay is competitive. The honest answer is that it depends on your app type, UA strategy, and existing setup. Both platforms have use cases where they perform better.

Can I run AppLovin MAX and Unity LevelPlay at the same time?

Yes. This is the standard approach for apps at $50K+/mo in ad revenue. Run MAX as the primary mediation layer for high-value formats in Tier 1 markets and add LevelPlay to cover formats or geographies where it has stronger demand relationships. The operational overhead of two platforms is real but typically justified at that revenue scale.

What happens to my AppLovin UA campaigns if I switch to LevelPlay mediation?

AppLovin restricts its ROAS UA campaigns to MAX publishers only. If you move your mediation to LevelPlay, you lose access to AppLovin's ROAS campaign type. AppLovin's cost-per-install campaigns remain available, but the ROAS-optimized buying, which is typically more efficient at scale, is MAX-only. Evaluate your UA dependency on AppLovin before making any mediation platform decision.

How long does it take to switch from MAX to LevelPlay?

Engineering time for an SDK swap is typically 1 to 2 development sprints. The full migration, including adapter reconfiguration, reporting pipeline updates, and the new platform's ML optimization ramp, takes 4 to 8 weeks before you have stable, comparable revenue data. Plan for a 2 to 4 week window of below-baseline eCPM during the optimization ramp.

Why does LevelPlay perform better for some apps than MAX?

LevelPlay is built on ironSource's original bidder backend, which has historically strong DSP relationships in certain geos and verticals (some Asian markets, certain midcore game segments). For apps in those profiles, ironSource's historical demand relationships can translate to stronger eCPMs than MAX. The other factor is support quality: LevelPlay is generally more accessible and responsive for mid-tier accounts than MAX, which can affect setup quality and issue resolution speed.

What should I measure when comparing MAX and LevelPlay on a test?

Measure revenue per DAU, not eCPM in isolation. eCPM is not a reliable comparison metric across platforms because fill rates differ. Revenue per DAU captures both the price of each impression and how many impressions the platform actually fills. Run the test for at least 4 weeks on a 50/50 traffic split on a single format and a single geography. Do not run the test across your entire app at once.