Methodology

How our rankings
work

We pull public podcast charts from several apps and combine them into rankings for each configured country. Here is exactly how that works, what the Pulse Score means, and what it can't tell you.

Separate rankings, calculated independently for every configured country. Chart positions, never listener counts.

01 / Sources

Where the data
comes from

Pod is Life combines public podcast charts from the apps listed below. Each app measures popularity its own way and covers a different set of shows. What we collect is a chart position, nothing more. We don't have download numbers, listener counts, or any way to measure shows that aren't on a chart.

The table describes the United States configuration: current source weights, mapped chart types, import method, and freshness windows. International coverage can differ by country. A source only counts toward a chart if it is configured for that country and chart, and has a usable snapshot. Genre and trending counts are actual mapped charts, not catalogue categories.

Current source configuration and mapped chart coverage
Provider Weight Overall Genre charts Import Fresh for
Apple Podcasts 1 Mapped 19 Scheduled 3 days
Spotify 1 Mapped 17 Scheduled 3 days
YouTube 1 Mapped 0 Manual 11 days
Castbox 0.05 Mapped 19 Scheduled 3 days
Pocket Casts 0.05 Mapped 19 Scheduled 3 days

These are configured coverage and freshness limits, not proof that a fresh snapshot arrived today. A provider may be mapped and still sit out a calculation when its latest snapshot is empty or beyond its freshness window.

Scheduled sources are collected on their configured schedule. YouTube is the exception: its US Top 100 podcast chart is a weekly list ranked by watch time, imported by hand, and configured for the US overall chart only. It has no genre or trending charts. Its week-ending date marks the reporting period, not the import date; each Monday-to-Sunday chart is published the following Wednesday.

YouTube ranks shows by total watch time, so before combining we scale each show's YouTube rank by how many minutes of content it publishes in a typical week; a show with the chart's median weekly minutes is unchanged.

02 / Matching

Treating the same show
as one show

Apps don't always spell or identify a show the same way. To line them up, we match on provider IDs, RSS feed URLs, and cleaned-up titles and publisher names. When a match is uncertain, we leave the records separate instead of forcing them together.

Once matched, a show counts at most once per source. If the same show somehow appears twice on one provider's chart, we use its better position.

03 / The calculation

How positions turn into
a Pulse Score

The method is called weighted reciprocal-rank fusion. For any given chart, every usable provider where the show appears adds some points. Higher positions are worth more, and the gaps are bigger near the top: moving from #10 to #1 is worth far more than moving from #70 to #60. A constant, currently k = 15, controls how steep that curve is.

Each source also has a weight. At the same position, a source with twice the weight contributes twice the points. Good positions on several apps add up, so a show that charts everywhere tends to beat a show that charts in one place. That said, a very high position on a heavily weighted source can still outweigh several low positions elsewhere. We apply this same formula and configured weights independently to each country's charts; we do not combine countries into one global ranking.

Raw score

Σ weightk + rank

Summed over the sources that have a usable snapshot for this chart.

If a show is missing from a provider's chart that we otherwise have, that provider adds zero for it. If we don't have a usable chart from a provider at all, because it's stale, empty, or not mapped, we leave that provider out of both the score and the maximum possible score. That way a missing chart doesn't drag a show down.

Displayed Pulse

round(100 × raw score ÷ perfect-score denominator)

Kept between 1 and 100. The denominator is Σ weight ÷ (k + 1), again only over the providers with usable snapshots for this chart.

So the Pulse Score is the show's raw score as a share of the best possible score on that chart, on that day. A 100 would mean #1 on every usable source. It is not a percentile, a market share, or a listener count, and it doesn't estimate how many people pressed play. The weights are relative multipliers; they are not audience share and don't translate into a fixed percentage of any show's score.

A worked example

This is made up, not live data. It uses the United States overall-source configuration shown above. Suppose a show sits at #10 on every enabled overall chart. Here is what each source adds, and the best possible score alongside it.

Points from the same position on each usable overall chart
ProviderRankContribution
Apple Podcasts#100.0400
Spotify#100.0400
YouTube#100.0400
Castbox#100.0020
Pocket Casts#100.0020
Combined raw score0.1240
Perfect-score denominator0.1937
Resulting Pulse64

The numbers above use the home-country weights and k currently in effect, so they change if the settings do. The example assumes every configured overall source has a fresh snapshot.

04 / Reading the charts

What the numbers
on the page mean

Each combined chart shows up to 200 positions, with 101–200 tucked behind an expander where there's enough data. Since the source charts are finite, a podcast that isn't on any of them isn't on ours either. We don't attempt to rank every podcast in existence.

Shows are ordered by the full, unrounded raw score. If two shows tie exactly, the one with the better single best position across sources goes first, and if that ties too, the better Apple position wins. There are no other tie-breakers. Because the Pulse is rounded for display, neighbouring positions can show the same Pulse number.

Movement arrows compare against the previous available chart for the same country, genre and source, which isn't always yesterday. They show how many places a show moved up or down. NEW means the show wasn't in the previous chart (Top 200 for Combined). It doesn't mean the podcast is new. When you view a single source, the order comes straight from that provider's chart, and movement compares its two latest available charts. YouTube movement compares weekly charts. Any Pulse shown next to it is still the combined score, not a score for that app alone.

Genre charts only use the providers' own genre charts. A show doesn't qualify just because its metadata says it belongs to a category.

Trending is the one chart we calculate entirely ourselves. We don't import any app's trending list. Every day, for each country, we compare where each show sits on our combined charts (Top Podcasts and every genre) with the previous ranking day and with about a week earlier.

A climb is measured proportionally, so moving from #80 to #40 counts the same as #10 to #5, and a new entry counts as arriving from just below the chart. The weekly climb carries 70% of the weight and the latest day 30%, so breakouts show up quickly without the list jumping around. Climbs on genre charts count at 75% of a climb on Top Podcasts, and a show climbing on several charts at once can earn up to half again on top of its best climb. A show needs a real move, roughly a 13% climb, to appear. In a country's first week of history, the daily change is used on its own.

Below the Trending list, Biggest climbers and New entries show the plain week-over-week moves on each chart.

05 / Coverage

Rankings, country
by country

Each country has its own configured set of providers and charts. We calculate a separate ranking for each country using the same weighted reciprocal-rank formula; country charts are never pooled into one global list. This directory shows configured coverage only—it does not confirm that a fresh daily snapshot is available.

13 configured countries

United States us · 5 providers · 19 genres
Apple Podcasts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Spotify Overall 17 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Health & Fitness
  • History
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
YouTube Overall Manual

No genre charts configured for this provider.

Castbox Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Pocket Casts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
United Kingdom uk · 4 providers · 19 genres
Apple Podcasts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Spotify Overall 17 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Health & Fitness
  • History
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Castbox Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Pocket Casts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Australia au · 4 providers · 19 genres
Apple Podcasts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Spotify Overall 17 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Health & Fitness
  • History
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Castbox Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Pocket Casts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Brazil br · 4 providers · 19 genres
Apple Podcasts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Spotify Overall 17 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Health & Fitness
  • History
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Castbox Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Pocket Casts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Canada ca · 4 providers · 19 genres
Apple Podcasts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Spotify Overall

No genre charts configured for this provider.

Castbox Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Pocket Casts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Germany de · 4 providers · 19 genres
Apple Podcasts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Spotify Overall 17 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Health & Fitness
  • History
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Castbox Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Pocket Casts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
India in · 4 providers · 19 genres
Apple Podcasts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Spotify Overall

No genre charts configured for this provider.

Castbox Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Pocket Casts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Ireland ie · 4 providers · 19 genres
Apple Podcasts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Spotify Overall

No genre charts configured for this provider.

Castbox Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Pocket Casts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Japan jp · 4 providers · 19 genres
Apple Podcasts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Spotify Overall

No genre charts configured for this provider.

Castbox Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Pocket Casts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Mexico mx · 4 providers · 19 genres
Apple Podcasts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Spotify Overall 17 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Health & Fitness
  • History
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Castbox Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Pocket Casts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
New Zealand nz · 4 providers · 19 genres
Apple Podcasts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Spotify Overall

No genre charts configured for this provider.

Castbox Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Pocket Casts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Philippines ph · 4 providers · 19 genres
Apple Podcasts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Spotify Overall

No genre charts configured for this provider.

Castbox Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Pocket Casts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
South Africa za · 3 providers · 19 genres
Apple Podcasts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Castbox Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film
Pocket Casts Overall 19 genres
  • Arts
  • Business
  • Comedy
  • Education
  • Fiction
  • Government
  • Health & Fitness
  • History
  • Kids & Family
  • Leisure
  • Music
  • News
  • Religion & Spirituality
  • Science
  • Society & Culture
  • Sports
  • Technology
  • True Crime
  • TV & Film

06 / LIMITS

Caveats

Not being on the chart doesn't mean a show has no audience. The apps measure different things, cover different shows, and update on different schedules. We report their charts as they are, and we never fill a gap with a guessed position.

Daily sources and the weekly YouTube chart can describe different stretches of time, since YouTube's week-ending date marks its reporting period rather than our import date. The freshness windows in the table above decide how long an observation stays eligible. Once a provider's snapshot passes that window, the whole provider drops out until a new one arrives.

Plenty of things on this site have no effect on the numbered positions: Spotify episode charts, Podcast Index trending data, publisher metadata, editorial lists and featured picks, sponsorships, show claims, and support or Patreon counts. We don't sell chart positions. Paid sponsored placements are labelled and kept apart from the ranking.