Passionfroot vs Radar Lab pick the newsletter before you book.
Passionfroot is where brands book creators. Radar Lab helps brands pick the newsletters that reach their buyers, with the real ad as proof.
No card needed. Facts about Passionfroot checked on passionfroot.me, November 4, 2026.
Sells the ad
The newsletter
Has the readers, sends the issues, sells the sponsor slots.
Buys the ad
Your brand
Needs buyers, and decides which newsletters get the budget.
Radar Lab has recorded 9,100+ sponsorships across 4,700+ newsletters, each with the real ad and date.
Pick here, book there.
Passionfroot is built for booking: find a creator's storefront, pay and send the brief in one flow. Radar Lab is the step before, where you decide which newsletters are worth it. Used together, it looks like this.
- In Radar Lab Add your website Radar Lab ranks newsletters by fit for your buyers.
- In Radar Lab Check the proof See which brands sponsored each one, the real ad, and who came back.
- In Radar Lab Make your shortlist Flag the good fits no competitor has sponsored yet.
- On Passionfroot Book the slot If the newsletter has a Passionfroot storefront, book it there. If not, email it directly.
Comebacks are the proof to look for: 46% of brand and newsletter pairings in Radar Lab ran more than once. Radar Lab data, November 2, 2026.
Passionfroot vs Radar Lab, side by side.
Passionfroot is a creator marketing platform where brands book creators' storefronts across newsletters, YouTube, LinkedIn and more, helped by an AI agent called Zest. Here's how it lines up for a brand choosing where to sponsor.
| Feature | Passionfrootpassionfroot.me | Radar LabBuilt for brands buying sponsorships |
|---|---|---|
| Built for | Creators selling slots, and brands booking them | Brands and agencies buying newsletter sponsorships |
| Main job | Find, book, brief and pay creators in one flow | Decide which newsletters fit your buyers, with proof |
| Which newsletters | Creators with a Passionfroot storefront, across newsletters, YouTube, LinkedIn and more | Any of 4,700+ newsletters, on any platform |
| Past sponsors | Not shown on its public pages | Every sponsor, with the real ad and the date it ran |
| How you pay | The creator's price, plus a 5% fee on storefront bookings | $49 a month, or $299 a year (founding price); nothing from where you book |
| After you book | Reach, engagement, spend and ROI tracking | Track competitors and get alerts when they sponsor somewhere new |
| AI assistants | Zest, its own AI agent, inside Passionfroot | ChatGPT, Claude and Grok Bot |
Based on passionfroot.me as of November 4, 2026. Tools change; if something here is out of date, tell us at hello@partnershipintel.com and we'll fix it.
Fair to both. Here's the honest version.
What Passionfroot does well
- Book, brief and pay creators across many channels in one place.
- One wallet for paying creators, so there's no vendor setup for each one.
- Campaign tracking with reach, engagement, spend and ROI.
Where Radar Lab is different
- It covers every newsletter it can read, not only the ones with a storefront.
- It shows which brands sponsored each newsletter before, with the real ad and date, including your competitors.
- It flags good-fit newsletters no competitor has sponsored yet.
- It earns nothing from where you book, and works inside ChatGPT, Claude and Grok Bot.
Should you pick Passionfroot or Radar Lab?
It mostly comes down to which side of the sponsorship you're on.
If you want a booking marketplace
Pick Passionfroot
- You want to book and pay creators across newsletters, YouTube and LinkedIn in one flow.
- You sell sponsorships and want a storefront brands can book.
If you buy newsletter sponsorships
Pick Radar Lab
- You want to know which newsletters are worth booking before you pay.
- You want to see where competitors already sponsor, with the real ads.
Can you use both? Yes, they fit together. Use Radar Lab to pick the newsletters with proof, book the ones that have a Passionfroot storefront there, and email the rest directly with the contact Radar Lab gives you.
Questions about Passionfroot and Radar Lab
Something else? Email hello@partnershipintel.com, or read what Radar Lab is.
Passionfroot is a creator marketing platform. Creators list their sponsorship offers in a storefront, and brands find, book, brief and pay them in one flow, across newsletters, YouTube, LinkedIn, Instagram and TikTok. Its AI agent, Zest, suggests creators and drafts briefs.
For choosing newsletters, yes: Radar Lab ranks 4,700+ newsletters by fit for your buyers and shows every past sponsor with the real ad. For booking and paying creators across channels, Passionfroot does things Radar Lab doesn't, so many brands use both.
Creators set their own prices. Passionfroot's help center says brands pay a 5% fee on bookings made through a creator's storefront, and deals Passionfroot sources take a 15% fee from the creator's payout instead. Radar Lab is $49 a month or $299 a year, with a 5-day free trial.
Not on its public pages when we checked. Radar Lab shows every sponsor it has found for a newsletter, with the real ad and the date it ran, so you can see who came back.
No. Radar Lab doesn't sell placements or take a cut. You get the newsletter's contact and a ready-to-send email, then book directly, on Passionfroot, or anywhere else.
Find the newsletters that reach your buyers, before your competitors do.
Add your website. Radar Lab ranks newsletters by fit, flags the ones no competitor has sponsored yet, and shows the real ads others ran there.
Try Radar Lab free for 5 days No card needed. Then $49 a month, or $299 a year at the founding price.