Churn is the rate at which subscribers cancel over a period — the metric a subscription business lives and dies by. In SVOD, acquiring a subscriber costs money up front and revenue accrues over their lifetime, so if they leave too soon the economics never work. A few points of monthly churn compound dramatically: 5% monthly churn means losing nearly half your base in a year if unreplaced.
Churn comes in flavors that need different responses. Voluntary churn (the user actively cancels) points to content, value, or price problems; involuntary churn (failed payments, expired cards) is a recoverable billing problem solved with dunning and card-updater integrations. Analysts also watch gross vs net churn and cohort retention curves to see whether the product keeps people past the first risky months.
Almost every OTT investment — recommendations, QoE, original content, onboarding — is ultimately justified by its effect on churn and its inverse, retention and lifetime value (LTV).
The handbook · 7 volumes
Fora Soft Video Engineering Handbook
Churn often starts with playback, because viewers who hit stalls and slow starts cancel before they complain. The seven volumes cover the whole video stack; for the technical side of churn start with Volume 3 on QoE monitoring, players, and ABR, then Volume 2 on delivery latency, with AI models in Volume 6. Written by Nikolay Sapunov, CEO at Fora Soft.
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