Unique Listener figures become less precise as the reporting period extends.
In general:
- Daily uniques tend to be the most reliable
- Weekly uniques are more approximate
- Monthly uniques are more likely to become inflated or fragmented
This happens because streaming platforms estimate listeners using technical identifiers such as:
- Listener IDs
- Device information
- IP addresses
- Session behaviour
Over longer periods of time, these identifiers may change as listeners:
- Switch devices
- Move between networks
- Reinstall apps
- Listen from different locations
- Use multiple listening platforms
As a result, the same listener may appear multiple times within weekly or monthly reporting windows.
Modern apps and players increasingly support more consistent listener identification, helping reduce duplicate counting and improve long-term reporting quality. However, no streaming platform can perfectly identify individual people across every listening environment and device.
For this reason, Unique Listener figures are generally best treated as audience estimates and directional trends rather than exact audience counts.
For more information, see: Why Unique Listeners Are an Estimate, Not an Exact Audience Count Understanding Digital Radio Metrics