Mux Data (launched 2017) is one of the dominant video QoE analytics platforms alongside Conviva, NPAW, Bitmovin Analytics and Datazoom. The SDK integrates into the player (web via hls.js/Shaka/Video.js plugins, iOS/Android via native SDKs, smart-TV via vendor SDKs) and ships every notable playback event — play, pause, seek, ABR switch, rebuffer, error, completion — to Mux's backend with metadata about the session (device, geo, CDN, content ID, player version).

The Mux dashboard aggregates these events into the standard QoE metrics — rebuffer ratio, startup time, video startup failures, exits before video start, average bitrate watched — and slices them by every dimension: per-content, per-CDN, per-ISP, per-device-type, per-region. Operators use it to spot regressions (a deploy caused a 20 % startup-time spike), diagnose CDN issues (one POP suddenly has 5× higher rebuffer ratio), and prioritise QoE improvement work.

Mux Data is particularly popular with developer-first OTT services because of clean SDKs, a programmable API, and integration with Mux's other products (Mux Video for managed encoding/streaming). For tier-1 OTT services, Conviva remains the default for its deeper enterprise integrations and longer history; Mux Data is increasingly chosen by mid-market and newer entrants. Both products produce the same fundamental metrics — the difference is workflow integration and pricing.