Fake install fraud on private marketplace programmatic campaigns
App install campaigns on PMP inventory face a lower but nonzero fake install risk, with sophisticated fraud operations adapting to exploit the trust and lower scrutiny applied to curated publisher deals.
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PMP app install campaigns carry residual fake install risk even with curated publisher relationships
App advertisers often choose private marketplace deals for user acquisition campaigns precisely because the lower fraud rates justify the premium CPMs. PMP publisher vetting significantly reduces the risk of fake installs compared to open exchange buying. However, the trust placed in curated publishers can also create a blind spot: because PMP inventory is assumed to be higher quality, fake install activity that does occur may be less scrutinised than it would be on open exchange traffic. Sophisticated fraud operations have adapted to this dynamic, operating within PMP environments at lower volumes designed to avoid triggering threshold-based detection.
The fake install risk on PMP inventory most commonly takes the form of contamination within an otherwise legitimate publisher's traffic base. A portion of the publisher's audience may be generated by bot scripts or device farms embedded in their traffic delivery infrastructure. At the individual session level, these installs pass basic device-signal checks. The fraud only becomes detectable at the post-install behaviour level: users who install the app through PMP inventory show zero in-app engagement, no session activity, and immediate churn, because no real person was ever behind the install event.
How Tapper stops fake installs on Display private marketplace
Three steps from connection to clean campaign data, no engineering required.
01
Connect your DSP, PMP deal data, and MMP to Tapper
Tapper integrates with your demand-side platform, private marketplace deal configuration, and mobile measurement partner to monitor the full attribution chain from PMP impression to install event.
02
Fake install signals identified within curated PMP traffic
Click-to-install timing analysis, device signal verification, and post-install behavioural scoring identify fraudulent installs attributed to PMP inventory, including low-volume sophisticated operations calibrated to avoid threshold detection.
03
PMP deal performance corrected and fraudulent installs excluded
Fake installs attributed to PMP inventory are excluded from your CPI calculations and MMP reporting, with deal-level evidence provided for publisher review or deal renegotiation.
Fake installs on Display private marketplace by the numbers
Data from Tapper's platform analysis and published industry research.
20-40%
Average IVT rate on open exchange programmatic
$84B
Lost globally to ad fraud annually
28%
Of mobile installs from programmatic inventory are fraudulent
90%
SDK spoofing and fake install detection rate by Tapper
Tapper vs Standard Brand Safety Tools
See exactly where the gaps are, and why they matter to your private marketplace performance.
Fake install detection in PMP deals
Full attribution chain analysis from PMP impression to MMP install event
No install-level monitoring in brand safety tools
Post-install behaviour scoring for PMP traffic
Behavioural analysis validates genuine users from curated inventory
Not available
MMP integration for PMP campaigns
Compatible with AppsFlyer, Adjust, Kochava, Singular, and Branch
No MMP data access
Deal-level CPI fraud evidence
Per-publisher fraud evidence for PMP deal review
No per-deal install fraud analysis
Trusted by industry leaders
See how companies are protecting their ad budgets and improving ROI with Tapper.
“Tapper played a key role in improving the efficiency of Du's performance marketing activity by addressing traffic quality issues within campaigns. Following implementation, Du achieved a 13% reduction in CPA and an 8.6% increase in order rate, demonstrating a clear improvement in conversion quality and overall campaign effectiveness.”
Joseph Elbcherrawy
Client Leadership Director, Mindshare, a WPP Media Brand
“During our Tapper trial for INFINITI, we uncovered low-quality traffic that wasn't visible inside the platforms. Removing it delivered a 14% uplift in conversions and an 11.4% reduction in CPA - a meaningful efficiency gain for INFINITI's 2026 growth plans.”
David Barnes
Data & Technology Lead, Omnicom Group
“With Tapper's protection we were able to identify and block invalid clicks in real time. The impact was immediate as our cost per acquisition dropped by 30% and ROAS improved significantly. More importantly, Tapper gives us the confidence that our campaigns are reaching genuine customers, which makes it truly invaluable.”
Dimitris Bakas
Senior Performance Marketing, Public Group
“We started using Tapper to get better visibility on where our clicks were coming from, and ended up cutting wasted spend by over 12%. The performance uplift was clear, and for the first time, we could trust the numbers we were seeing. It's a total game-changer for campaign integrity.”
Stuart Parkin
Director of Operations, Regit
“Tapper's blocking technology purifies our paid media traffic which roughly equates to a 36x return against its subscription costs. It's certainly one of the easiest-to-implement tools in our entire marketing stack.”
Reno Mindemann
Head of Growth, Kama Capital
“We've been using Tapper for over a year now, and it has become a core part of how we run paid media. Invalid traffic was always something we knew existed but couldn't really act on. Tapper changed that. We're now saving up to $50K per year, and on PureSquare specifically, we saw around a 20% decrease in CPA. Based on these results, we decided to roll it out across other ventures under Disrupt as well.”
Nurkan Kirkan
GTM Consultant / Paid Growth, Disrupt.com
Trusted by leading brands worldwide
Frequently asked questions
Everything about fake installs on Display & Programmatic private marketplace.
PMP publisher vetting reduces but does not eliminate fake install risk. Bot and device farm traffic can be embedded within an otherwise legitimate publisher's audience delivery infrastructure without the publisher's knowledge. Sophisticated fraud operations also operate at lower volumes in PMP environments specifically to stay below threshold-based detection while extracting CPI payouts from higher-CPM deal environments.
Real users acquired through PMP display campaigns exhibit natural app engagement: they explore app features, complete sessions with natural timing variation, and return to the app over subsequent days. Fake installs from bot or device farm operations show zero in-app engagement, identical session patterns, and immediate churn. Tapper's post-install behavioural scoring identifies these patterns even when the install event itself passes device-signal fraud checks.
No. PMP deals remain significantly cleaner than open exchange for app install campaigns. When Tapper detects fake installs within a PMP deal, the appropriate response is to address the specific contamination source, either through publisher discussion, deal term renegotiation, or targeted suppression, while maintaining your PMP buying strategy for the clean majority of deal traffic.
Other fraud types on Display & Programmatic private marketplace
Private marketplace campaigns face multiple fraud threats. Tapper protects against all of them.
Stop fake installs on your Display private marketplace
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