Nielsen Audio has launched mSurvey, a mobile digital diary that began rolling into regular diary measurement in Spring 2026, with a hard rollout now underway.
mSurvey lets respondents log seven days of radio listening on a smartphone in real time or shortly after, using e‑screeners, address‑based sampling and digital incentives (Venmo/PayPal/gift cards) to boost response and data quality. Nielsen positions the tool to complement — not immediately replace — paper diaries; initial industry reports indicate mSurvey will comprise roughly 10% of diary samples at the start, expanding as testing continues.
The system was developed and phased in during 2023–2024 to modernize the paper diary method, improve representation of younger and hard‑to‑reach demographics, speed collection and reduce data errors. It is part of a broader set of changes including new eScreener protocols and digital incentives.
Industry observers caution that methodology shifts may change measured listening levels versus paper diaries; the Media Rating Council’s prior actions on diary accreditation in some markets add context to ongoing scrutiny. Broadcasters, agencies and advertisers should expect gradual changes in sample composition and reported audiences as mSurvey adoption grows.
Recommended steps for stakeholders: 1) contact your local Nielsen rep for the rollout schedule and market‑specific impact notes; 2) request bridge or parallel analyses comparing paper‑only and mSurvey‑augmented books; and 3) avoid making major booking or revenue decisions based on a single early mSurvey‑influenced book.