What D1, D7, and D30 mean
Retention is always measured by cohort: a group of players who registered on the same day (day 0), tracked over time. D1 measures the percentage of that group who opened a session or deposited again the day after signing up; D7, on the seventh day; D30, on the thirtieth. Each milestone answers a different question: D1 measures whether the first experience — signup, first deposit, first bet — convinced the player to come back; D7 measures whether they built the habit of using the platform in the first week; D30 measures whether they actually became a recurring player.
A sharp drop between D1 and D7 usually points to a product or onboarding problem — a game that didn't engage, a poorly explained bonus, a signup flow that created friction. A drop between D7 and D30 tends to point to problems in ongoing operations — a catalog that never refreshes, no re-engagement campaigns, or competitors offering better terms.
Are retention and churn the same thing seen backwards?
Not exactly, though they're related. Churn measures players lost within an inactivity window against the total active base, usually calculated on a rolling monthly basis. Retention measures, by signup cohort, how many remain active at fixed time milestones from day zero. They cut the same phenomenon differently: retention is the right metric for judging the quality of onboarding and the first days of a specific group of players; churn is the right metric for monitoring the health of the overall active base, including older players.
An operation can have weak D30 retention among new signups and still show controlled monthly churn, if the mature legacy base is large enough to offset it. That doesn't mean everything is fine — it means the problem is hiding behind a legacy base that hasn't yet felt the effect of recent low-quality acquisition.
Which levers actually move retention?
Three factors have a direct, measurable impact:
- PIX (Brazil's instant bank-transfer rail) withdrawal speed — a withdrawal processed in minutes, not days, is one of the strongest retention levers in the Brazilian market today, because it removes the friction that generates the most distrust.
- Structured cashback — a partial refund of losses, paid on a predictable schedule, gives the player a concrete reason to return even after a bad session.
- Missions and gamification — short-term challenges with a clear reward (play X rounds, bet on Y sports) recreate the return trigger that the product alone stops generating once the initial novelty wears off.
Retention by time milestone
| Milestone | What it measures | What a sharp drop at this milestone usually signals |
|---|---|---|
| D1 | Return the day after signup | A problem in the first experience: onboarding, first deposit, bonus clarity |
| D7 | Return in the first week | No habit formed; catalog or comms don't sustain recurring use |
| D30 | Return in the first month | Player never became recurring; missing re-engagement levers (cashback, missions) |