Converts email newsletters and web articles from Substack, Medium, Stratechery and others into native Kindle ebooks: forward an email to a dedicated inbox and it shows up on your Kindle seconds later, and several articles can also be bundled into a daily or weekly magazine.
Robert, an indiOne-line growth story, compiled by us from public sources; speculation is marked separately below.
Real payments synced by TrustMRR, in USD, by calendar month, renewals included. TrustMRR sync stopped 2 months ago; no data for later months.
“No referral, invite, share, embed or open-source elements visible; only social proof "Join more than 5,100 happy users" and author testimonials.”Quote from the site
New-user source: SEO (Non-brand search). Similarweb, last month: organic search about 45.6% (estimated), direct visits 39.2% as the top channel, referrals about 9.1%, and monthly visits +81.6% month over month. Search keywords include the brand keyword readbetter io, plus non-brand ones such as can you get the wall street journal on kindle, substack read and free substack articles, with non-brand search at about 36%. The website has a free Substack-to-EPUB converter and per-publication Kindle guide pages (Substack, Medium, NYT, WSJ), and the homepage shows praise from two big newsletter authors, Sahil Bloom and Packy McCormick. Existing users stay through annual subscription renewals.
Top channel measured by Similarweb, others estimated by rank
| Attributable new users, last month | Share |
|---|---|
| SEO | 36% |
| Other | 64% |
Direct + brand search 48%. Direct and brand search count as viral only when the site shows sharing mechanics; the largest share wins, under 5% means Other.
| Country | Share of visits |
|---|---|
| United States | 100% |
English
8 keywords · brand ~48% · organic 100% / paid 0%
| Similarweb top 5 keywords |
|---|
| readbetter io |
| can you get the wall street journal on kindle |
| substack read |
| busker.substack |
| free substack articles |
Non-brand queries: can you get the wall street journal on kindle, substack read, busker.substack, free substack articles
TrustMRR revenue sync stopped 2 months ago; the last full month was about $1,508, #462 of 563 TrustMRR sites.
New-user source: SEO (Non-brand search). New users mostly come from need-based searches Similarweb, last month: organic search about 45.6% (estimated), direct visits 39.2% as the top channel, referrals about 9.1%, and monthly visits +81.6% month over month. Search keywords include the brand keyword readbetter io, plus non-brand ones such as can you get the wall street journal on kindle, substack read and free substack articles, with non-brand search at about 36%. The website has a free Substack-to-EPUB converter and per-publication Kindle guide pages (Substack, Medium, NYT, WSJ), and the homepage shows praise from two big newsletter authors, Sahil Bloom and Packy McCormick. Existing users stay through annual subscription renewals.
Starter free (3 per month); Plus $59.88/year (10 per month); Unlimited $83.88/year (unlimited, includes custom digests and magazines); prices exclude VAT
Dossier confidence: medium. Parts 1 and 2 come from reading the site and Similarweb data; part 3 from public reporting, founder posts, Wayback snapshots, WHOIS and similar, with speculation marked.
The numbers: revenue comes from TrustMRR: real payments synced automatically from the founder's Stripe or other payment account, summed by calendar month, renewals included, in USD. Site visits come from the Similarweb public page; where it shows none, they are estimated from global rank or the TrustMRR payment count, as noted on the page.
Data through last month. Page updated 2026-10-31.
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