Doubao Launches Check-in Rewards: 8,800 Credits for 30 Days, Free Month for New Users

The mechanics here are retention engineering rather than a product launch: daily check-ins and a free first month are classic levers for building habit before any payment decision, and the cumulative 30-day framing is designed to keep users returning rather than to reward a single visit. The audience is primarily new and casual users weighing whether the platform is worth a subscription. Whether check-in streaks actually convert into paid retention — or just inflate engagement metrics during the promotional window — is the open question worth watching.