Steffen Giebler is a solo founder and software developer based in Berlin Mitte, Germany, working under the studio name 52N34S Group. He builds and ships his own mobile and web applications, and works with founders to turn early ideas into production products. His own products are: Orivela, a notes and records app for iOS that captures what you say, type or photograph and answers questions about it in plain language. Kolibi, a nutrition and bodyweight training app for iOS that recognises meals from a photo, adjusts daily targets to each session and moves you up a level when you are ready. Peeranimo, a peer-matching social platform on the web that connects people who are in the same chapter of life. Carpincho, a Spanish learning app focused on 1,000 high-frequency words in Rioplatense, neutral Latin American and Spanish variants, live on the App Store. ErdiKnows, a web app for developers that puts deploys, releases and incidents as markers on the same timeline as product metrics, so a drop can be read together with what shipped around it. It is not an analytics tool — it is the layer on top. He has built more than ten platforms, both self-founded and for clients, and is available for freelance product development, software architecture and long-term product partnerships.

Steffen Giebler — Product Developer and Indie Founder in Berlin

Apps

I love making new things.

Hi, I'm Steffen. Berlin, working solo. Each one solves a different problem.

Steffen Giebler, product developer and indie founder, Berlin

FOOD & TRAINING

Two apps for eating the way you meant to.

The dish that fits you. The target that moves with your training.

KOLIBILIVEON THE APP STORE

KOLIBI

BOWL & EGGS438
FLAT WHITE84

REMAINING412 kcal

Kolibi app icon

Kolibi

iOS

Your food knows it's training day.

Kolibi puts nutrition and bodyweight training in one app. Train at home or in the park, and your calories and macros adjust to the session while protein stays steady. Thirty-nine exercises across eleven ladders show you when you are ready for the next level.

Get the app →
GETABITELIVEON THE WEB

Decide before you leave.

🌿Falafel bowl
🌿Lentil soup
Chicken wrap
House salad
GetaBite app icon

GetaBite

Web

Know where you're going and what you'll order before you leave the house.

GetaBite maps vegan and vegetarian places together with the dishes they actually serve, built from menus people photograph on the spot. The scanner covers the supermarket shelf for the rest of the week. You walk in knowing what fits and what to ask about.

Open →

LANGUAGE & PEOPLE

Two apps for the conversation you want to have.

Say it in Spanish. Say it to someone who gets it.

CARPINCHOLIVEON THE APP STORE

Don't be a tourist.

1,000 words is enough.

🇦🇷🇺🇾🇲🇽🇨🇴🇵🇪🇪🇸
Carpincho app icon

Carpincho

Spanish with the least effort possible

You say your sentence and the answer comes back in Spanish.

Carpincho drills the moments you actually land in, from ordering at the cafe to the call you keep putting off. You speak, it listens and tells you the two words it hung on. Every word is spoken in Rioplatense, neutral Latin American and Spain, so you hear which one you are learning.

Get the app →
PEERANIMOLIVEON THE WEB
HELLO
Y
D
Same book, three chapters behind you. Want to talk?
Peeranimo app icon

Peeranimo

Social platform · Web

Find people who get it.

Peeranimo matches you with people working on the same thing you are. You describe where you are stuck, and the conversation starts with someone who has been there.

Open →

MEMORY & DATA

Two apps for finding the answer fast.

The note you'll want later. The reason the number moved.

ORIVELALIVEON THE APP STORE
⌕passport

Passport — Steffen G.

Valid until 2029

Orivela app icon

Orivela

iOS

Out of your head. Into one place.

A thought on the walk home, an insurance PDF, the contract someone wants today. Say it, type it or snap it, and Orivela files it with the right title and labels. Ask in plain language and it comes straight back.

Get the app →
ERDIKNOWSLIVEON THE WEB

Numbers moved.
Erdi knew why.

ErdiKnows app icon

ErdiKnows

Web

FOR INDIE DEVELOPERS

You shipped something last week. Did it pay off?

ErdiKnows puts your releases, price changes and campaigns on the same timeline as your revenue and your signups. When a number moves, you can see what you changed the week before. Built for developers who ship weekly and want the answer in one screen.

Open →

FOR FOUNDERS

Two tools for getting your app built.

The stack that fits your idea. The developer who has built it before.

FIND MY STACKLIVEON THE WEB
Find My Stack app icon

Find My Stack

WEB

Build your app right the first time.

Answer a few questions about your idea and get one clear, honest recommendation.

Take the assessment →
ERDIBUILDSWAITLISTON THE WEB
erdibuilds app icon

erdibuilds

WEB

Your app, live in people's hands.

Pick from verified developers who have already built apps like yours.

Join the waitlist →

./work-with-me

What's your
situation?

Pick your case. I'll take you through how I work.

See all six →

Pitch me your idea. We'll take it apart together.

Let's think it through →
Contact

>_ contact

Let's build
something real.

I'm available for freelance projects,
architecture work, and long-term
product partnerships.

  • → From idea to launch.

    Full product thinking, every step of the way.

  • → I architect systems that scale.

    Clean data models. Scalable from day one.

  • → Business thinking built in.

    Revenue models, retention, growth: the business behind the build.

  • → A decade of platforms. Real products.

    Self-built and client projects across multiple industries.

What are you building?