MAU
Full name: Monthly Active Users
Also known as: monthly active users, monthly users
Definition
The number of unique users who interact with a product or service within a 30-day period.
A metric that tracks the overall size and growth of a product's active user base by measuring the count of distinct individuals who perform a qualifying action within a month.
Why it matters
MAU provides a broad view of a product's market reach and user base health. It is widely used by investors and management to track growth trends and compare scale across the industry.
Improvement tips
- Define a clear active user action that reflects real customer value rather than simple login pings.
- Compare MAU with DAU to understand the frequency of user engagement.
- Combine MAU trends with customer acquisition costs to ensure growth is financially sustainable.
Common mistakes
- Counting duplicate accounts or automated bots as unique monthly active users.
- Relying on MAU as a primary metric for daily habits, which can mask high daily drop-off rates.
- Treating MAU as a vanity metric without measuring user retention and engagement depth.
Related terms
DAU
The number of unique users who interact with a product or service within a single 24-hour day.
Retention
The percentage of users who continue to use a product or service over a specific period.
Vanity metrics
Statistics that look impressive on paper but do not correlate with real business growth, revenue, or customer retention.
Quick check
What is the main difference between DAU and MAU?
Choose an answer
Frequently asked questions
Do I need to track Monthly Active Users (MAU) before starting my business?
When does MAU first become relevant for a new company?
How do I estimate potential MAU for my startup business plan?
Is MAU a good metric to show to early-stage investors?
Why does MAU matter for a business already running?
What goes wrong when a running business ignores its monthly active users?
How do I track MAU without stopping day-to-day operations?
How can a business operator boost MAU when growth is stagnant?
What does MAU actually mean in plain words?
Is tracking monthly active users risky or complicated?
Do I need a software engineer to calculate my MAU?
What is the difference between MAU and DAU?
Sources: Amplitude
Last reviewed: 2026-07-16