OP3
OP3: A free, privacy-focused way to measure podcast downloads and audience breakdowns. Ranked #13 of 26 in Podcast Analytics Software by our editors (6.1/10); pricing: Free plan; best for open-source projects needing free measurement.
At a glance
- Editor score6.1 / 10
- PricingFree plan
- Best forOpen-source projects needing free measurement
- Free planYes
- Paid fromNone
- Founded2022
- Facts checked20 Sep 2026
Where it wins
- Free and open source, with no signup or login required
- Download, geographic, device, and app breakdowns
- Full-history exports plus a privacy-preserving API
Where it doesn't
- Primarily measures downloads rather than exact listens
- Does not provide verified retention or attribution metrics
- No ranking or unique-listener features
Our verdict on OP3
OP3 is a free, open-source podcast prefix analytics service for podcasters, podcast hosting companies, and developers. Users prepend an OP3 prefix to episode URLs to measure podcast downloads without signup or login. Each measured show receives a public statistics page with download metrics, geographic, device, and app breakdowns. Its web and API access also suit teams that want to work with podcast data programmatically.
The product takes a focused approach to measurement rather than offering a tiered subscription suite. OP3 provides podcast and episode download metrics, spreadsheet exports with full history, and a privacy-preserving API. A setup checker helps verify that OP3 prefixes are present in podcast feeds, which gives publishers a direct way to check the measurement configuration. Optional listen-time statistics are available from anonymized aggregate payment data, adding context beyond download counts without changing the service's primary focus.
OP3 is strongest for open-source projects and privacy-conscious publishers that need free, accessible download analytics. Its public statistics pages, historical exports, and API make the collected information available across different workflows. The main boundary is analytical depth: OP3 primarily reports downloads rather than exact listens, and it does not provide verified retention, attribution, ranking, or unique-listener features. Publishers seeking those measures should choose a podcast analytics product built around deeper listener behavior and comparative reporting instead.
OP3 pricing
OP3 fact sheet
| Free plan | Yes |
|---|---|
| Paid from | None |
| Unique listeners | Not verified |
| Audience demographics | Yes |
| Attribution tracking | Not verified |
| Ranking charts | Not verified |
| Retention metrics | Not verified |
| Tracked shows | Not verified |
| Data retention | Not verified |
| Deployment | Cloud |
| Platforms | Web |
| Support | Email, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Pricing | Free plan |
| Website | op3.dev |
| Facts checked | 20 Sep 2026 |
Alternatives to OP3
- ListenerBroad podcast, video, and social analytics for teams managing audience growth.9.4
- PodcastStats.comDetailed podcast analytics with a free starting point and paid API access.8.2
- AushaA broad podcast platform combining hosting, IAB-compliant analytics, distribution, and monetization.8.0
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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