How ByteDance Drives User Growth from 0‑1: Models and Retention Tactics

ByteDance User Growth Model

ByteDance defines user growth as increasing user volume within a reasonable ROI range, acknowledging that ROI may be negative depending on product stage.

The model combines user lifecycle and MAU, illustrated by a diagram where the dotted line represents the lifecycle from awareness to usage, retention, and churn.

The growth formula is:

MAU (the left side) is the primary north‑star metric, while the right side consists of three business‑related factors:

MNU: New Users MNU t‑1: New‑User Retention MA Active Ut‑1: Active‑User Retention

Thus, user growth = new users + new‑user retention + active‑user retention.

The model adapts to different product lifecycles, which ByteDance splits into four phases: exploration (0‑1), growth (1‑N), maturity, and decline. This article focuses on the 0‑1 phase, where improving new‑user retention is paramount.

Why New‑User Retention Matters in the 0‑1 Phase

New users have simpler usage paths, so optimizing a few key steps yields high ROI and reduces acquisition cost dramatically. For example, if acquisition cost is ¥20 per user and daily new users are 10,000, a retention rate drop from 40% to 20% raises cost per user from ¥50 to ¥100.

Four Common Ways to Boost New‑User Retention

Incentive System

Reward mechanisms such as membership, sign‑in, or task systems encourage users to keep using the product long enough to experience its core value, e.g., short‑video recommendation algorithms.

Onboarding

Guided flows help users complete key actions early, such as selecting interests in music or reading apps, leading to first content consumption or playlist creation.

User Outreach

Push notifications, SMS, or in‑app messages deliver timely, relevant messages that prompt users to return, provided the copy matches user needs to avoid noise.

Fine‑Grained Operational Analysis

As the user base grows, segment users by behavior and preferences, then design tailored strategies for each segment to sustain engagement.

Conclusion

The article outlines ByteDance’s growth model and practical methods for improving new‑user retention during the 0‑1 stage, emphasizing the importance of delivering core product value and converting key behaviors into lasting usage.