Insideletter 2025 Review

Insideletter

Mobile attention is collapsing.

In 2018, mobile ads held attention for 3.4 seconds on average.
Today, it’s just 2.2 seconds.

That’s a 35% drop in only 7 years. And a massive challenge for marketers.

The State of Advertising 2025 shows what’s happening and how to adapt.

Get science-backed insights from a year of neuroscience research and top industry trends from 300+ marketing leaders. For free.

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First of all, thank you so much.

Thank you for trusting Insideletter in your newsletter growth journey. Whatever I achieved this year wouldn’t have been possible without you.

Today is the last day of the year, and I want to reflect and share everything that happened this year.

I’ll keep it short because I want you to enjoy the last day of the year.

I started Insideletter back in May 2025 on Substack. My goal was simple: to share whatever I was learning while building my newsletters.

Eventually, I moved to Beehiiv because I wanted to monetise it.

I had no plan to start a ‘new’ newsletter, but people loved it. They kept asking me questions about how to grow their own newsletters, and that’s when I realised it was time to help others and make some money (by placing ads).

The main problem was positioning. I started it as an ‘expert’ newsletter, even though I wasn’t an expert, and that made me question my own credibility.

So I changed it into a curation newsletter.

Another crucial issue was distribution.

I simply wasn’t distributing it enough.

That’s why I optimised my LinkedIn and started posting everything about the newsletter there.

I also began collaborating with other creators and launched a newsletter podcast.

The final problem was trust, so I started building on Reddit and ran a free six-week cohort coaching program.

I didn’t have any specific goal for 2025, but in 2026, I’ve a goal of making a minimum of £1500/m.

Actually, the goal is even bigger, but I want to start with a small one which seems achievable. So there we go!

And this is the last ask of 2025 to join the community, I even reduced the pricing to only £19/m so you don’t feel alone while building your newsletter in 2026.

Before we say goodbye to 2025, I want to say you thank you once again. It wasn’t possible without you.

I truly appreciate your support and learning with Insideletter.

Now let’s start the countdown of 2026

10…9…8…7…6…5…4…3…2…1….