MAU Change Calculator: Percentage Change in Active Users
Work out the percentage change in monthly active users (MAU) between two periods — and the net change in users — the headline growth metric for apps, SaaS products, and online platforms.
Adjust the inputs and select Calculate for a full breakdown.
Compare Common Scenarios
How the numbers shift across typical situations for this calculator:
| Scenario | MAU change | Net change in users |
|---|---|---|
| 8,000 to 11,000 (+37.5%) | 37.50% | 3,000 |
| 50,000 to 45,000 (−10%, decline) | -10.00% | -5,000 |
| 2,000 to 8,000 (+300%) | 300.00% | 6,000 |
| 100,000 to 108,000 (+8%) | 8.00% | 8,000 |
How This Calculator Works
Enter your MAU for the previous and current periods. The calculator finds the percentage change and the net change in users. Use a consistent definition of 'active' across both periods, since how you count an active user heavily affects the number.
The Formula
Percentage Change
Old is the starting value, New is the ending value
Worked Example
MAU rising from 8,000 to 11,000 is a 37.5% increase — a net 3,000 more active users. MAU is a core growth metric, but the net change hides the churn beneath it: you might have gained 5,000 new and resurrected users while losing 2,000 to churn. A product can post healthy net MAU growth while bleeding existing users — so MAU change is most useful paired with the new/churned/retained breakdown and with engagement metrics like DAU/MAU stickiness.
Key Insight
MAU change is the standard top-line growth number for user-based products, but reading it well requires looking underneath and around it. First, definition consistency: 'active' must mean the same thing in both periods (a login? a meaningful action?) — loosening the definition can inflate growth artificially, so the metric is only comparable when the bar for 'active' is fixed. Second, net change masks composition: MAU growth = new users + resurrected (returning) users − churned users, so a 37.5% net gain could hide heavy churn offset by aggressive acquisition. Tracking the breakdown reveals whether growth is healthy (strong retention) or leaky (acquiring faster than you retain, which is expensive and fragile). Third, pair MAU with engagement and quality: the DAU/MAU ratio (stickiness) shows how often active users return, and acquisition source matters since users from a viral spike or paid push often churn faster than organic ones. Fourth, watch seasonality — many products have monthly or seasonal patterns, so year-over-year comparison can be truer than month-over-month. Use the percentage to size the growth and the net change to gauge scale, then dig into the new/churned/retained split and stickiness to know whether the MAU change reflects durable growth or a number propped up by spending.
Frequently Asked Questions
How is MAU change calculated?
Subtract the previous period's MAU from the current period's, divide by the previous period, and multiply by 100. From 8,000 to 11,000 is (11,000 − 8,000) / 8,000 = 37.5%, a net gain of 3,000 active users.
Why does the definition of 'active' matter?
Because 'active' can mean anything from a login to a meaningful action, and the number changes drastically with the definition. To compare periods fairly, fix the definition — loosening what counts as 'active' can inflate MAU growth artificially without any real improvement.
Does net MAU growth hide churn?
Yes. MAU change = new + resurrected users − churned users, so a healthy-looking net gain can mask heavy churn offset by aggressive acquisition. Track the new/churned/retained breakdown to tell whether growth is durable (strong retention) or leaky (acquiring faster than you keep).
What should I track alongside MAU?
Engagement and retention: the DAU/MAU ratio (stickiness — how often active users return), the new/churned/retained composition, and acquisition source (viral or paid users often churn faster than organic). MAU alone is a vanity number until paired with these quality signals.
Should I compare month-over-month or year-over-year?
Both have uses, but year-over-year controls for seasonality, which many products have. Month-over-month is more immediate but can be misled by predictable seasonal swings. Use year-over-year for a truer read of underlying growth, and keep the 'active' definition consistent across the comparison.
Related Calculators
Methodology & Review
The change is the difference between the new and old MAU divided by the old MAU, multiplied by 100. It compares two period totals directly and does not separate new users from retained or resurrected users, or adjust for seasonality.
Written by Ugo Candido · Last updated May 22, 2026.