---
title: "What Is DAU?"
term: "DAU"
description: "DAU (Daily Active Users) counts how many unique users engage with a product on a given day — a core traction metric for consumer apps and platforms."
date: 2026-07-25T00:00:00.000Z
updated: 2026-07-25T00:00:00.000Z
topics: ["venture-capital"]
source: https://venturecapitaltracker.com/glossary/dau
---

# What Is DAU?

> DAU (Daily Active Users) counts how many unique users engage with a product on a given day — a core traction metric for consumer apps and platforms.

**DAU** (Daily Active Users) is the count of unique users who perform a defined meaningful action in your product within a single calendar day.

### How it works

Teams must define **"active"** consistently — opening the app, sending a message, completing a session over 30 seconds, or making a payment. Changing definitions breaks comparability across weeks.

DAU is tracked against installs, MAU (monthly actives), and cohort retention curves. A app with 1M downloads but 50k DAU has an engagement gap worth diagnosing.

Monetization models tie differently to DAU: ad-supported products need high daily frequency; B2B tools may prioritize weekly active teams instead, making DAU less central.

Investors benchmark DAU/MAU ratios and retention to spot products with habitual use versus novelty spikes after marketing bursts.

### Why it matters

- **Founders:** Pick one active definition and never silently change it in board decks. Segment DAU by platform, geography, and acquisition channel.
- **Investors:** Raw DAU alone is vanity without retention and revenue per user. Ask how DAU translates to LTV and whether bots or incentive fraud inflate counts.

### Common mistake

Counting any app open as active when users bounce in seconds. Meaningful engagement definitions align metrics with business value.

### Related ideas

See also [DAU/MAU](/glossary/dau-mau), MAU, retention cohorts, and [KPI](/glossary/kpi).

## FAQ

### What is DAU in simple terms?

It is the number of distinct users who open or meaningfully use your product in one day. Social apps might count a login; a fintech app might require a transaction.

### Why does DAU matter?

For founders, DAU shows whether habit forms after install. For investors, DAU growth and stability inform ad revenue potential, network effects, and whether paid acquisition scales profitably.


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Source: https://venturecapitaltracker.com/glossary/dau