Multi-Touch Attribution
Understand the complete user journey with deterministic and probabilistic attribution models. First-touch, last-touch, linear, and custom models.
Now in Public Beta
Attribution starts with the first open
The next-generation Mobile Measurement Partner built by engineers who understand what enterprise mobile teams actually need: accuracy, speed, transparency, and fair pricing.
99.9%
Attribution Accuracy
<50ms
Real-time Processing
100%
Raw Data Access
Trusted by growth teams at
Fintech Co.
GameStudio
ShopApp
HealthTech
TravelNow
Core Capabilities
Everything you need to measure mobile growth
From attribution to incrementality, FirstOpen delivers the complete measurement stack your team needs.
SKAdNetwork & Privacy Sandbox
Future-proof your measurement with native support for Apple's SKAdNetwork 4.0 and Google's Privacy Sandbox APIs.
Real-Time Fraud Prevention
ML-powered fraud detection blocks install hijacking, click injection, SDK spoofing, and device farms before they impact your data.
Deep Linking Infrastructure
Universal links, deferred deep links, and smart banners that work across all platforms. Zero configuration, instant setup.
Audience Segmentation
Build powerful cohorts based on acquisition source, behavior, and LTV predictions. Sync audiences to your ad networks in real-time.
Marketing Mix Modeling
Understand true marketing impact with statistical models that account for organic lift, seasonality, and cross-channel effects.
Incrementality Measurement
Geo-holdout tests and causal inference models that measure the true incremental value of your marketing spend.
Raw Data Access
Your data, your way. Stream raw events to Snowflake, BigQuery, Redshift, or S3. Full schema documentation included.
Cost & ROI Analytics
Aggregate spend from all your ad networks. Calculate true ROAS with cost data, revenue events, and LTV projections.
Platform
Built for engineers, loved by marketers
A platform that respects your time. Clean APIs, comprehensive docs, and dashboards that load in milliseconds.
Real-Time Dashboard
Live metrics with sub-second refresh. Custom dashboards, saved views, and scheduled reports delivered to Slack or email.
Developer-First APIs
RESTful APIs with OpenAPI specs. SDKs for iOS, Android, React Native, Flutter, Unity, and web. Webhook integrations for everything.
Warehouse Integrations
Native connectors for Snowflake, BigQuery, Redshift, Databricks, and S3. Reverse ETL support for Hightouch and Census.
Cross-Platform Tracking
Unified user identities across iOS, Android, web, CTV, and console. Probabilistic matching when deterministic isn't available.
Partner Integrations
Pre-built integrations with Meta, Google, TikTok, Apple Search Ads, Unity, ironSource, AppLovin, and 200+ more partners.
SOC 2 Type II
Enterprise-grade security with SOC 2 Type II certification, GDPR compliance, and data residency options in US, EU, and APAC.
Why FirstOpen
The MMP built for modern teams
We've been in your shoes. Frustrated with opaque pricing, slow support, and outdated UIs. That's why we built FirstOpen.
| Feature | FirstOpen | Adjust | AppsFlyer |
|---|---|---|---|
| Transparent Pricing | Yes, published | Contact sales | Contact sales |
| Raw Data Access | All plans | Enterprise only | Enterprise only |
| Real-Time Processing | <50ms | Minutes | Minutes |
| SKAdNetwork 4.0 | Full support | Full support | Full support |
| Privacy Sandbox | Native | Beta | Beta |
| Incrementality Testing | Built-in | Add-on | Add-on |
| Setup Time | <30 min | Days | Days |
| Support Response | <1 hour | 24-48 hours | 24-48 hours |
Testimonials
Trusted by growth teams
"Finally, an MMP that doesn't treat raw data as a premium feature. FirstOpen gives us the flexibility we need at a price that makes sense."
"We migrated from AppsFlyer in under a week. The SDK was a drop-in replacement, and their support team was incredible throughout."
"The incrementality testing alone has saved us hundreds of thousands in wasted ad spend. FirstOpen pays for itself many times over."
Pricing
Transparent pricing that scales with you
No hidden fees. No surprise invoices. No "contact sales" games. Just straightforward pricing based on monthly tracked users.
Starter
For indie developers and small apps
$
0
/ month
- Up to 10K MTU
- Multi-touch attribution
- SKAdNetwork support
- Basic fraud protection
- Community support
Growth
For scaling mobile teams
$
499
/ month
- Up to 500K MTU
- Everything in Starter
- Raw data export
- Advanced fraud protection
- Deep linking
- Priority support
Enterprise
For large-scale operations
Custom
- Unlimited MTU
- Everything in Growth
- Incrementality testing
- Marketing mix modeling
- Data residency options
- Dedicated support
- Custom SLAs
Ready to start measuring?
Get started in minutes. No credit card required for the free tier. Migration support included.