How Caarisma Got 3,000+ App Installs in Under a Week at Under €2 CPI
Caarisma is a European skincare app helping users build personalised skincare routines and track skin health. We built a Meta App Install campaign tracked via Appsflyer — achieving over 3,000 app installs in under one week at a cost per install below €2, on a €15,000/month advertising budget.
A Skincare App Needing High-Volume Quality Installs at an Efficient CPI Across Europe
Caarisma needed to rapidly scale app installs across European markets — proving the app’s appeal to a broad skincare-interested audience while keeping cost per install below a level that made the economics of user acquisition sustainable. The European skincare app market is competitive, with several established players and significant Meta CPMs in key markets like UK, Germany, and France.
Without proper mobile measurement partner setup, previous campaigns had been optimising toward install signals that Meta was reporting inaccurately — making it impossible to understand which audiences, creatives, and placements were genuinely driving quality installs versus those being over-credited by incomplete attribution. Appsflyer implementation was the foundational requirement before any meaningful optimisation could occur.
Implement Appsflyer attribution and build a Meta App Install campaign achieving 2,000+ installs in the first week of the campaign — at a cost per install below €3, with proper in-app event tracking to understand post-install behaviour from day one.
High-Volume App Install Strategy for European Skincare App
Appsflyer Implementation — Accurate Attribution First
Set up Appsflyer as the mobile measurement partner before launching any paid campaigns — integrating with Meta via the Appsflyer dashboard, mapping key in-app events (registration, routine creation, first skin assessment), and establishing postback configuration to send accurate conversion signals back to Meta's algorithm.
Skincare Interest Audience Precision
Built highly targeted Meta audiences around European skincare interest — specific skincare ingredient communities, beauty routine content followers, dermatology content engagement, and skin concern interest categories — reaching audiences with genuine skincare engagement rather than broad beauty interest.
In-App Experience Preview Creative
Developed creative that showed the Caarisma app experience in action — personalised routine building, skin tracking features, and product recommendation flows — giving prospective users a clear preview of the value they'd receive before installing, improving both install rate and post-install retention.
Rapid Creative Testing — 48-Hour Decision Cycle
Launched 6 creative variations simultaneously across different skincare angles (personalisation, routine building, skin tracking, ingredient education) with a strict 48-hour decision cycle — scaling winning creative within days of launch to drive the high install volume achieved in the first week.
Appsflyer Attribution Gave Meta's Algorithm Accurate Signals to Find Real Users
Before Appsflyer, Meta was optimising install campaigns based on incomplete, browser-side signals — finding people who clicked the App Store link but not necessarily people who installed and engaged with the app. Once Appsflyer postbacks were sending accurate install and in-app event data back to Meta, the algorithm rapidly improved at finding high-quality users — contributing significantly to achieving <€2 CPI in a competitive European market where Meta CPMs are typically high.
Before & After EmergingAds
Key Insights
📊 MMP Setup Before Launch is Non-Negotiable
Launching app install campaigns without Appsflyer meant Meta was optimising toward inaccurate signals. Setting up attribution first was the prerequisite that made every subsequent optimisation decision reliable.
🎬 In-App Preview Creative Drives Quality Installs
Showing the actual app experience in creative pre-qualified users — people who installed after seeing the app's actual features were significantly more likely to complete onboarding than those who installed based on aspirational lifestyle creative alone.
⚡ 48-Hour Creative Decisions Compound Volume Rapidly
Scaling winning creative within 48 hours rather than waiting for weekly review cycles was essential for achieving 3,000+ installs in a single week — speed of creative decision-making directly drove launch-week volume.
What They Say About Us
"3,000+ installs in under a week at under €2 CPI was an incredible launch result for us. The Appsflyer setup was the piece we'd been missing — once Meta had accurate data to work with, the campaign performance transformed almost immediately. The 48-hour creative testing cycle drove the volume we needed in that critical launch window."
More App Marketing & European Results
Mobile Apps & European Tech Brands
Get 3,000+ Quality App Installs at Under €2 CPI
We achieved 3,000+ Caarisma app installs in under a week at <€2 CPI with Appsflyer and Meta. Book a free audit and let's build your app install strategy.
© 2026 EmergingAds. All rights reserved. Gurugram, Haryana, India.
SERVICES
INDUSTRIES
MARKETS
- USA
- Europe
- Middle East
- Australia
- Canada
- Australia
- India