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Reach people who make things.

Overtone listeners are designers, engineers, scientists and makers who choose a long conversation over a short one. We take a few sponsors per season and read every ad ourselves.

Start an enquiry See the rate card

Downloads per episode: 48k; Within 30 days, Q3 2026
Monthly listeners: 182k; Unique, all platforms
Listen to the end: 83%; Average completion rate
Bought from a sponsor: 62%; 2026 listener survey, n = 3,412

Audience

Growing every quarter, mostly by word of mouth.

Downloads per episode

Average within 30 days of release, by quarter

Show the numbers

Downloads per episode by quarter
Quarter	Downloads
Q1 ’24	14,200
Q2 ’24	17,800
Q3 ’24	21,500
Q4 ’24	24,900
Q1 ’25	27,600
Q2 ’25	31,200
Q3 ’25	33,800
Q4 ’25	37,100
Q1 ’26	41,300
Q2 ’26	44,800
Q3 ’26	48,200

What listeners do

Self-reported occupation, 2026 survey

Design & architecture31%
Engineering & tech27%
Science & research14%
Education11%
Other17%

Age

Share of listeners, all platforms

18–249%
25–3438%
35–4429%
45–5415%
55+9%

Where they listen

Share of downloads by country

United States58%
United Kingdom11%
Canada8%
Germany5%
Australia4%
Elsewhere14%

Ad formats

Read by the hosts. Never by a robot.

We only advertise things one of us has used. If we wouldn’t recommend it to a friend, we’ll say no.

Host-read mid-roll

60 to 90 seconds in the middle of the conversation, in our own words, with a personal story where we have one.

“I’ve been using Ferncroft notebooks since season one. The dot grid is the right grey. Nadia disagrees, loudly.”

Enquire about mid-rolls

Best for launches

Season sponsor

All sixteen episodes of a season: a pre-roll and mid-roll in each, a credit in the show notes and a feature in the newsletter.

Category exclusivity
Your name on the season page
Quarterly listener report

Enquire about a season

21,000 readers

Newsletter feature

A 120-word note from the hosts at the top of The Overtone Letter, with one link and one image.

58% open rate · 9.4% click rate

Enquire about the newsletter

Rate card

Simple, published prices.

Prices in US dollars for season five (2027). Episode prices are based on 48,000 downloads.

Advertising rates
Format	Length	CPM	Price
Host-read mid-roll	60–90 s	$32	$1,540 / episode
Host-read pre-roll	30 s	$25	$1,200 / episode
Season sponsor	16 episodes + 8 letters	—	$34,000 / season
Newsletter feature	120 words + image	—	$900 / issue

Booking three or more episodes takes 10% off. Non-profits and independent makers: ask us about our reduced rate.

Enquire

Let’s talk.

Tell us about your product and when you’d like to run. Rosa replies within two working days with availability and a media kit.

01We check the fit and try the product
02You approve talking points, we write the read
03A report with downloads 30 days after release

Or email sponsor@overtone.example