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Lower your CPI by eliminating invalid traffic before it becomes installs.
Tapper uses pre-bid exclusion, in-stream click fraud prevention, and attribution verification to stop invalid traffic at every stage of your mobile acquisition funnel, before it wastes budget or corrupts your bidding signals.
Why CPI keeps increasing in mobile acquisition
Most mobile fraud is invisible by the time it reaches your MMP. Fake clicks inflate your traffic counts. Fake installs corrupt your attribution. Invalid post-install events train your campaigns toward the wrong users.
Each fraudulent signal that enters your data layer makes your bidding algorithms less accurate. Over time, CPI rises, ROAS falls, and campaign performance degrades, without any obvious cause.
Fake clicks waste budget before an install is even attempted
Click injection and SDK spoofing steal attribution from real sources
Fake installs corrupt bidding signals and raise target CPI over time
Invalid post-install events train algorithms toward fraudulent user profiles
Your MMP cannot independently validate the data it receives
How Tapper protects mobile user acquisition
Four layers of protection that cover every stage where invalid traffic can enter your funnel and inflate your CPI.
Pre-bid exclusion
Block known bad actors before your ad is even served. Tapper maintains continuously updated exclusion lists of fraudulent IPs, devices, and audience segments, stopping wasted spend before it starts.
In-stream click fraud prevention
Every click is scored in real time against behavioural signals, fingerprint data, and fraud patterns. Bots, click farms, and suspicious traffic are blocked before they reach your MMP.
Attribution verification
Tapper sits alongside your MMP as an independent layer to validate every install. Click injection, SDK spoofing, and misattribution are detected and removed before they corrupt your campaign data.
Post-install analysis
Fraud does not stop at the install. Tapper monitors in-app behaviour for fake engagements, bulk invalid events, and anomalous activity patterns that indicate fraudulent users slipping through post-attribution.
Every type of mobile fraud. Covered.
Tapper detects and blocks the full range of mobile acquisition fraud vectors, not just invalid clicks.
Fake installs
Bot-generated or incentivised installs that never come from real users, wasting budget and inflating CPI.
Click injection
Fraudulent apps that fire fake clicks at install time to hijack attribution from legitimate sources.
SDK spoofing
Simulated install events generated without any real device or user, invisible to standard MMP checks.
Attribution fraud
Manipulated attribution signals that credit fraudulent sources with real conversions you legitimately earned.
Fake in-app events
Bulk invalid post-install events that distort your optimisation signals and corrupt bidding algorithms.
Incent fraud
Low-quality users incentivised to install with no intent to engage, driving up installs while destroying LTV.
Protection across the entire acquisition funnel
Tapper intercepts invalid traffic at every stage, from the first impression to post-install behaviour.
01
Traffic
Pre-bid exclusion
Known fraudulent IPs, devices, and segments are excluded before your ad is served. Your budget only reaches real inventory.
02
Click
Click-level fraud blocking
Every click is scored in real time. Invalid clicks are blocked before they reach attribution, keeping your data clean from the first touch.
03
Install
Attribution validation
Installs are validated independently alongside your MMP. Click injection, SDK spoofing, and misattribution are removed before they enter your data layer.
04
Post-Install
Post-install analysis
In-app behaviour is monitored for fake engagements, invalid events, and anomalous patterns that indicate fraudulent users post-attribution.
Built for mobile performance marketers
Tapper integrates with your existing stack and runs automatically across every channel, so you get clean data and lower CPI without adding complexity to your workflow.
Google UAC
Protect app campaigns and keep bidding signals clean for smarter algorithm optimisation.
Meta App Campaigns
Block fake clicks and installs from distorting your event optimisation and lookalike audience quality.
Apple Search Ads
Validate installs independently and ensure your CPA data reflects real user acquisition.
Third-Party Ad Networks
Expand beyond walled gardens with the protection layer needed to manage higher fraud rates on open networks.
DSPs and Programmatic
Pre-bid exclusion and click-level filtering protect programmatic spend from bot traffic and invalid inventory.
What Tapper delivers
Measurable outcomes for mobile growth teams that need to scale spend without scaling fraud exposure.
Lower CPI
Remove invalid installs from your data and your bidding algorithms start optimising toward real users, driving CPI down over time.
Cleaner attribution data
Independent install validation alongside your MMP gives you a verified view of what is actually driving performance.
Better bidding signals
When your campaign data reflects only real users, automated bidding performs better, lower target CPA, higher ROAS.
Confident scaling
Expand to third-party networks and new channels without amplifying fraud exposure or increasing blended CPI.
Full funnel visibility
See exactly where invalid traffic is entering your funnel, by network, publisher, or creative, and act on it with real data.
Simple, transparent pricing
One plan. Everything you need to protect your mobile acquisition funnel.
Enterprise
Verify mobile attribution and prevent install fraud.
From $2,000/month
# of impressions, clicks, installs and events included (from 50M)
Automated fraud prevention
Impression & click-level protection
Real-time analytics
Event level verification
Misattribution prevention
Dedicated support
Agency and partner access
Customised MMP integration
Unlimited partner integrations
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
“Since integrating Tapper, we've eliminated a huge chunk of wasted ad spend from bot and competitor clicks. The real-time protection, clear analytics, and effortless setup have given us full confidence in our campaigns. Tapper doesn't just save budget, it's boosted our ROI and made every click count.”
J.B. Koomson
Head of Marketing, Elite Merit Real Estate
Trusted by leading brands worldwide
Frequently asked questions
Common questions about mobile ad fraud, CPI, and how Tapper works.
Fraudulent installs inflate CPI in two ways: they waste budget directly, and they corrupt your bidding algorithms so campaigns optimise toward fraudulent user profiles. Tapper removes invalid traffic before it enters your data layer, so your budget works only on real users and your CPI reflects genuine acquisition costs.
No. Your MMP is built to track and credit installs, not to validate them. It cannot independently detect click injection, SDK spoofing, or attribution fraud. Tapper sits alongside your MMP as an independent verification layer, catching fraud that your attribution stack cannot see on its own.
Pre-bid exclusion means that before your ad is even shown, Tapper checks the incoming impression against a continuously updated list of known fraudulent IPs, devices, and audience segments. If a match is found, the bid is suppressed and your ad is never served to that traffic, eliminating waste before it starts.
Yes. Fraud rates are significantly higher on third-party mobile ad networks. Tapper gives you the protection layer to expand confidently to new networks without amplifying fraud exposure, reducing your blended CPI while maintaining install quality.
Setup typically takes around 10 minutes. Tapper integrates seamlessly with major MMPs, and from there protection runs automatically across your campaigns with no daily management required.