WARM or Digital Radio Tracker: which one tracks your radio airplay?
Digital Radio Tracker (DRT) monitors US and international radio, including thousands of internet radio stations, and sells airplay reports. WARM monitors radio worldwide and shows every play in a dashboard. Here is how the two compare, using what each company publishes.
| Feature | WARM | Digital Radio Tracker |
|---|---|---|
| Radio stations covered | WARM: 21,000+ stations in 160+ countries | Digital Radio Tracker: 5,000+ FM, college, commercial and internet radio stations in the US and worldwide (DRT's figure) |
| How plays are found | WARM: WARM recognises the song in the audio of the broadcast | Digital Radio Tracker: DRT says its system needs no encoding or fingerprinting |
| What a report shows | WARM: Station, country, city, start time and duration of every play | Digital Radio Tracker: Spins per station per day; the comprehensive report adds the exact airplay times and which version was played |
| History | WARM: 90 days on plans under 50 songs, 365 days from 50 songs, up to 2 years by agreement | Digital Radio Tracker: A historical report of the previous 8 weeks |
| How you pay | WARM: A plan from €15 a month for 2 songs, billed monthly or yearly | Digital Radio Tracker: A free account, and reports bought one at a time; no prices on the pages we read |
| API | WARM: Yes, set up by agreement | Digital Radio Tracker: Not mentioned on the pages we read |
| Charts | WARM: Weekly genre charts ranked by airplay | Digital Radio Tracker: DRT airplay charts and certified plaques |
Digital Radio Tracker figures are as published on its own website, read on 13 October 2026: About DRT, DRT stations monitored, DRT reports, DRT registration, DRT search and one-off reports. Products change; check their current pages before you decide.
Where Digital Radio Tracker is stronger
- A free account, and single reports without a subscription.
- Reports that say which version of a song was played. On WARM, each version is tracked as its own song.
- Charts and certified plaques for artists, and a long list of US networks and internet radio platforms.
Where WARM is stronger
- About 4 times as many monitored stations, by each company's own count.
- History of up to 365 days when you add a song, or 2 years by agreement, against an eight-week report.
- Every play in a dashboard as it is found, reports to export, and an API.
The short answer
If you mainly need reports on US and internet radio, bought one at a time, DRT sells those. If you want every play of your songs across radio in 160+ countries, with history and an API, WARM covers far more stations.
Free trial: 5 songs for one month. No credit card required.