01
Install the SDK
Every app open after the install day counts as a return, once per day.
User retention
Find the campaigns whose users keep coming back
Compare retention by install cohort and acquisition campaign. Read return visits alongside spend, revenue and uninstalls before scaling a low-CPI source.
Every feature on the free plan, for the first 25,000 attributed installs.
Join 400+ growth teams using Linkrunner.
What you get
Judge acquisition quality after the first open
Built from install-day cohorts and SDK app opens, beside cohorts and LTV in Analytics.
Click the number, see the people
Open the Classic Retention or Active Users column to see who stayed and who stopped.
Know when they uninstall, not just when they stop opening
A daily silent push through FCM and APNs marks an install uninstalled after 3 failed days in a row.
Retention down to the creative
Campaign, ad set and creative rows carry their own retention, so a cheap CPI with no second session stands out.
How it works
From SDK install to retention by campaign
02
Add retention columns
Pick classic, cumulative or rolling at the windows you review, and sort campaigns by them.
03
Read mature cohorts
For a complete D30, pick a range that ended at least 30 days ago. See the retention docs.
One cohort, three numbers
Why your D7 retention depends on the method
The same five installs give three D7 numbers: classic, cumulative and rolling.
| User | Days opened |
|---|---|
| A | 1, 2, 3, 5, 7, 9 |
| B | 1, 4, 10 |
| C | 1, 2 |
| D | 3 |
| E | - |
| Method | Counts a user who | D1 | D7 |
|---|---|---|---|
| Cumulative | Opened on any day from Day 1 to Day N | 60% | 80% |
| Classic | Opened on exactly Day N | 60% | 20% |
| Rolling | Opened on Day N or any day after | 80% | 40% |
One cohort of five installs, Day 0 is the install day.
Hear from our customers
Trusted by teams that care about more than attribution.
“The level of customisation that Linkrunner was able to offer was unmatched by any of the other competitors we looked at. Their team took the time to understand our exact requirements and delivered a solution that felt tailored to our needs, rather than forcing us into a fixed framework. That flexibility made a significant difference for us and was one of the key reasons Linkrunner stood out.”
Ronald M Thomas
Digital Marketing, Playo
34%
CPI reduction in 3 months
₹20.30 → ₹13.39
Google Ads CPI drop (Dec '25 → Feb '26)
Frequently asked questions
What growth and lifecycle teams ask about retention in Linkrunner.
What is the difference between classic, rolling and cumulative retention?
Which retention windows does Linkrunner show?
Why does rolling retention keep going up for the same dates?
Why is my retention cohort smaller than my install count?
How does Linkrunner measure churn?
How should I compare two campaign cohorts?
Bring mature cohorts to your next campaign review
Add retention columns and compare campaigns at the same cohort age.