Company

We help great apps grow.From Kassel, Germany.

Fermium100 is the app growth platform for Apple developers, from solo developers to small studios. We read the App Store every day and make the changes at Apple for you, so you know what brings downloads instead of guessing.

See what we shipped Talk to us

Why we exist

Most apps don't fail because they're bad. They fail because nobody finds them. The tools that could help were built for agencies. So we built the one we wanted for our own apps.

Fermium100 at a glance

Founded: 2026
Based in: Kassel, Germany
Built by: An indie developer
Changes shipped: 300+ in our first 2 weeks

Ali Hussein

Founder

“I build iOS apps. I needed one simple tool to get them found, so I built it, and I use it on my own app first.”

Our own app Becoming is tracked in Fermium100 every day. Its real rankings are on our home page.

How we work

Four rules. We keep them in every feature.

Honest numbersEvery number says where it comes from: from Apple, measured by us or calculated. Nothing made up.
Built in publicWe ship every day and show what's next with a date. Our changelog has every step.
Your data stays yoursKeys stored encrypted, servers in London, no ad trackers. We never sell data.
Made for app developersClear next steps instead of dashboards for analysts, at prices a solo developer can pay.

Changelog Security How our data works Affiliate program

Contact

Real people. Real answers.

Questions about the product, a number, your plan or a partnership? Write to us, we answer every email ourselves.

hi@fermium100.com

Fermium100
Ali Hussein
Universitätsplatz 12
34117 Kassel, Germany

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