Mobile Measurement Partner (MMP)
An MMP is an independent third-party platform that attributes app installs and in-app events to the advertising sources that drove them.
Definition
A Mobile Measurement Partner (MMP) is a third-party analytics provider that sits between ad networks and advertisers to provide unbiased attribution, connecting each app install and in-app event to the specific campaign, ad set, and creative that drove it. The three dominant MMPs are AppsFlyer, Adjust, and Singular.
MMPs solve the attribution problem: every major ad network claims credit for installs using its own tracking pixel, leading to double-counting when multiple networks are running simultaneously. An MMP uses a single SDK installed in the app to apply a consistent attribution methodology across all networks, providing a single source of truth for which ad drove which install.
MMP data is the foundation of creative performance analysis at the ROAS and LTV level. Ad network dashboards only show top-of-funnel metrics (impressions, clicks, installs). MMP data connects those installs to in-app revenue, enabling ROAS calculation and LTV modeling at the creative level.
Why it matters
Without an MMP, you cannot accurately measure which creatives, campaigns, or channels are driving profitable users, you can only see install volume. With an MMP, you can connect each creative to downstream revenue events and calculate true ROAS and LTV by creative. This is the data layer that makes sophisticated creative analytics possible.
Example
In practice
Without an MMP, a gaming studio's Meta and Google campaigns both claim 100% credit for 5,000 installs, a 2x overcount. With AppsFlyer installed, the studio sees the actual split: 3,200 Meta installs and 1,800 Google installs, with correct revenue attribution to each.
Frequently asked questions
Which MMP should I use, AppsFlyer, Adjust, or Singular?
All three are industry-standard and well-supported. AppsFlyer has the largest market share and broadest network integrations. Adjust is strong for mid-market and European apps. Singular combines MMP attribution with marketing analytics. Choose based on your network mix, reporting needs, and pricing.
Do I need an MMP if I'm only running one ad network?
If running a single network, the network's own attribution may suffice for basic reporting. But as you scale to multiple networks, an MMP becomes essential to avoid double-counting. Most professional UA teams implement an MMP from the start.
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