Mobile App Retention Calculator

The formula is: Retention rate = (Retained users ÷ Total users in cohort) × 100. For example, if 400 of 1,000 users who installed on Day 0 are still active on Day 30, your Day 30 retention is 40%. You can use this calculator to plug in your numbers and get the rate instantly.

Retention rate is the percentage of users who stay (e.g. 40% Day 30 retention). Churn rate is the percentage who leave: 100% minus retention (e.g. 60% churn). They measure the same behavior from opposite sides; improving one improves the other.

Yes. Use this calculator: enter your starting users (e.g. installs or new users in a period), the number who were still active at the end of the period, and the time window (e.g. 30 days). It will compute your retention rate and show how changes in retention affect revenue over time.

It varies by vertical and app type. As a rough guide: day 1 retention often ranges from ~25% to 45%; day 7 from ~15% to 25%; day 30 from ~5% to 20%. "Good" is above the median for your category and improving over time. Use this calculator to see how your number compares and how improving it affects revenue.

Yes. 25% day 30 retention is strong for most mobile apps. Many apps sit in the 5–15% range, so 25% is above average and indicates a sticky product. Use this calculator to see how much revenue that retention level supports and how much more you'd gain by improving it further.

Higher retention means users stay longer and generate more revenue per user, so LTV goes up. Lower retention shortens average lifetime and reduces LTV. This calculator shows total revenue over time for your retention rate; that trajectory is directly tied to the LTV of your cohort.

Improving retention means more users stay active and pay (or see ads) for longer. This calculator lets you change the retention rate and see how total revenue over time increases. Even a few percentage points of improvement can add meaningful revenue at scale.

Common causes: weak onboarding, no clear habit loop, low perceived value after first use, friction or bugs, or a mismatch with user expectations. Diagnose by looking at retention by cohort, segment, and feature use. This calculator helps you quantify how much revenue you're leaving on the table so you can prioritize fixes.

Improve onboarding so users reach "aha" quickly, add reasons to return (notifications, content, streaks, achievements), reduce friction and bugs, and align features with habit-forming use cases. Gamification (streaks, progress, rewards) is a proven lever. This calculator shows the revenue upside so you can justify investing in retention.

Yes. Streaks, achievements, points, and progress mechanics give users reasons to return and form habits. Many apps see measurable gains in day 1, day 7, and day 30 retention after adding gamification. Trophy provides gamification infrastructure (streaks, achievements, points, leaderboards) so you can ship these patterns and measure the impact with tools like this calculator.