If you’re looking for newsletters to sponsor, you’ve probably come across Passionfroot. It’s one of the best-known platforms for working with creators, and it makes sense to look at it.
We do the same thing, so it’s better to say it upfront. This post is written by one of the two sides. That’s why every fact about Passionfroot links to their own site, so you can check it yourself, and we also tell you when they’re a better fit than we are.
What Passionfroot is
Passionfroot is a German platform built for B2B brands and B2B creators. Their site speaks to “B2B marketing and growth teams” and to brands in tech, SaaS, AI and finance.
It isn’t only about newsletters. It mixes LinkedIn, X, YouTube, Instagram, TikTok, Substack and beehiiv, so one campaign can combine a LinkedIn post, a video and a newsletter mention.
For brands it offers two things.
- Zest, an AI agent that builds the campaign plan and drafts the messages to creators, which you approve before they go out.
- Amplify, a service where their team runs the campaign from start to finish. It’s built for launches and fundraises, and they offer it to “a select number of tech companies”.
What Niusleters is
Niusleters is a marketplace for independent newsletters, on any topic. To be on it you need a newsletter, but many creators also have other audiences (social media, a podcast, a community, events) and offer packages that bundle it all into one sponsorship. You can work with us in two ways.
- The platform, where you find newsletters, talk to them, agree on a price and pay inside.
- Managed campaigns, where we do it for you. We pick the newsletters, negotiate, write the ad, set the schedule and send you the report.
The differences that matter
1. Guaranteed readers
In managed campaigns we guarantee a minimum number of impacts, counted as real opens. An impact is one person opening the edition your ad appears in, not an estimate based on subscriber count.
In the €1,000 package that’s at least 6,000 impacts. If we fall short, we run your ad in more relevant newsletters at no extra cost until we reach the number. We explain it step by step on the managed campaigns page.
This is what the brand received from a real campaign, with 39% more impressions than guaranteed. We tell the whole story in this case study.
We couldn’t find any guarantee of results on Passionfroot’s site. They show case studies, which isn’t the same thing.
2. No subscription, and the price in plain sight
Passionfroot has paid plans for brands (Starter, Scale and Enterprise) and doesn’t publish their prices. On top of that, the brand pays a 2% fee on every payment. Amplify has no published price either.
At Niusleters there’s no subscription. On the platform you pay 10% on each sponsorship you close, and nothing if you don’t close any. Managed campaigns have a fixed, public price starting at €1,000, with the ad copy and banner included.
If you only compare the fee per sponsorship, theirs is lower. Once you add the subscription and your team’s time, the math depends on how much you’ll use it.
3. The newsletter gets paid once your ad is out
On Passionfroot you pay when you book, often weeks before the content goes live, and the creator gets paid at that point.
At Niusleters you also pay when the deal is agreed, but we hold the money and the newsletter receives it once your ad has been published.
4. Any industry, not just B2B
Passionfroot is built for B2B brands. If you sell travel, pottery classes or an everyday product, their creator catalog isn’t designed for you.
On Niusleters there are newsletters about tech and marketing, but also travel, food, health and wellness, art, literature and history. What we look for is an audience that fits your brand, not a brand that fits a category.
5. Packages with other audiences, and each channel measured separately
Passionfroot is built around creators on several channels at once, with LinkedIn, YouTube or TikTok on the same level as the newsletter.
At Niusleters the base is always an independent newsletter, and from there the creator can offer packages with their other audiences, such as their social media, podcast, community or in-person events. It all goes into the same sponsorship, at a single price, with one payment and one invoice. When it’s done you get the metrics for each channel separately, because a post scrolling past in a feed and an email someone opens are not worth the same, and mixing them only inflates the number.
And we’re happy for those newsletters to be small, because a small, loyal community is worth more than a huge list that doesn’t open its emails.
When Passionfroot is the better fit
- You’re a B2B brand in tech, SaaS, AI or finance.
- You have a marketing team that can manage the relationship with creators.
- You’re mainly after LinkedIn or YouTube creators, and the newsletter is secondary.
- You’re planning a big launch or a fundraise and you qualify for Amplify.
When Niusleters is the better fit
- You want to advertise in newsletters and pay for real readers.
- You want a package with the newsletter plus the creator’s other audiences (social media, podcast, community, events), with each channel’s numbers kept separate.
- Your brand is consumer or B2B, in any industry.
- You don’t have the time or the team to find newsletters, negotiate and prepare the ads.
- You’d rather have a fixed price and guaranteed impacts than a subscription.
Summary
| Passionfroot | Niusleters | |
|---|---|---|
| Channels | LinkedIn, X, YouTube, Instagram, TikTok and newsletters | Independent newsletter, plus packages with the creator’s social media, podcast, community or events |
| Brands | B2B (tech, SaaS, AI, finance) | Any industry |
| Subscription to use the platform (brand) | Required, paid plans with no public price | None, you only pay when you close a sponsorship |
| Fee per sponsorship (brand) | 2% | 10% |
| Managed service | Amplify, for select tech companies, no public price | Open to any brand, from €1,000 |
| Guaranteed results | Not on their site | Minimum impacts guaranteed |
| When the creator gets paid | When the brand books | When the ad goes out |
| Languages | English | English and Spanish |
Wrapping up
Passionfroot is a good option if you’re a B2B brand with your own team and you want to work with large creators across several channels at once.
If what you want is to reach people who actually read, with a clear price and someone who handles everything, tell us what you need. We’ll put together a free proposal with hand-picked newsletters within 48-72 hours, and you only pay if you accept it.
Request your proposal or, if you’d rather search yourself, go to the platform.
Passionfroot details are taken from their website and help center on November 11, 2026. If anything has changed since then, email us at hola@niusleters.com and we’ll fix it.
