What KERNWERK GmbH does

KERNWERK GmbH is a German fitness-technology company that operates an AI-powered adaptive functional-fitness platform. The core product is a mobile application (iOS and Android) combined with a web platform, which delivers professionally designed workouts that are personalized by a proprietary recommendation engine to each user's fitness level and available equipment after a learning phase of roughly 20–30 sessions. The content layer consists of 250+ benchmark workouts, 800+ exercises, and 30+ training plans, supplemented by a unique 'Daily Workout' produced for every calendar day by an in-house coaching team, yielding on the order of two million possible workout combinations. Multiple equipment profiles (home, gym, outdoor, hotel) allow the same user to train in different contexts without loss of personalization.

Name

KERNWERK GmbH

Legal name

KERNWERK GmbH

Website

https://kernwerk.de

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

1–10 employees

Short description

KERNWERK GmbH is a German fitness-technology company that runs an AI-adaptive functional fitness app and membership service for individual consumers, plus institutional programs for schools, police, military, firefighters, and corporate clients across the DACH region.

Ownership category

akta.pro rank

Headquarters

HQ city

Cologne

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2C

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure

Revenue model

1. Premium Membership Subscription: Annual and monthly subscription plans providing access to AI-adapted daily workouts, workout personalization, and full platform access. The primary revenue driver. The annual plan costs 119.99 EUR with a 60-day money-back guarantee and no notice period for cancellation. Pre-paid activation codes can be purchased at the store to add membership time without requiring a recurring subscription.
2. Equipment Sales: Kernwerk sells branded fitness equipment (Kernwerk Equipment) and merchandise (Kernwerk Wear) through its own e-commerce storefront at store.kernwerk.de.
3. Pre-paid Activation Codes: One-time prepaid activation codes sold via the Kernwerk Store. These add membership time to accounts without requiring an ongoing subscription, providing flexibility for users who prefer a pay-as-you-go approach.
4. B2B / Corporate Fitness: Kernwerk offers a B2B corporate fitness program (Firmenfitness) with dedicated pricing for companies, as well as institutional programs for schools (Sportunterricht), police, firefighters, and military with negotiated rates.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels8 records

Core offering

KERNWERK GmbH operates an AI-powered functional fitness platform delivered primarily through its iOS and Android mobile app. The core service is a subscription-based membership that provides users with daily new workouts created by professional coaches, where a proprietary AI engine adapts each exercise to the user's fitness level and available equipment after a learning phase of 20–30 workouts. Supporting offerings include a branded equipment store, a merchandise line (Kernwerk Wear), pre-paid activation codes, and dedicated B2B and institutional programs for schools, police, military, firefighters, and corporate clients.

Product overview

KERNWERK GmbH operates a unified functional fitness ecosystem centered on its Kernwerk® App and membership-based coaching service. The core offering combines daily new workouts created by professional coaches with proprietary AI technology that adapts exercises to each user's fitness level and available equipment. Supporting the app are several complementary services: an Equipment Store offering discounted fitness gear, Kernwerk® Wear merchandise, Activation Codes for prepaid access without subscription, and specialized programs for schools (free sports training), forces/military personnel, students, and corporate clients. The product portfolio functions as an integrated fitness platform where the AI-powered app serves as the primary engagement vehicle, while the equipment store, merchandise, and B2B offerings expand revenue streams and market reach.

Differentiator

Problem solved

Functional benefit

Brands

• Kernwerk® Forces: Fitness programs specifically designed for military, police, and emergency services personnel
• Kernwerk® Student
• Kernwerk® Wear
• Kernwerk® B2B

Products and services

• Kernwerk Membership (AI-adapted functional fitness coaching) Subscription-based functional fitness coaching delivered via the iOS/Android Kernwerk app and web platform. Members receive a new sport-science-backed "Daily Workout" every calendar day and access to 250+ benchmark workouts, 800+ exercises, and 30+ training plans. After a 20–30 workout learning phase, the proprietary Kernwerk AI adapts each exercise to the user's fitness level and equipment profile, delivering personal-trainer-quality personalization. Priced at 119.99 EUR annually with a 60-day money-back guarantee.
• Kernwerk Pre-paid Activation Codes One-time pre-paid codes sold via the Kernwerk Store that add membership time to a user account without requiring a recurring subscription. Designed for gifting and for users who prefer a pay-as-you-go model.
• Kernwerk Equipment Store Online store operated via partner Lexquinta (lexquinta.kernwerk.de) selling recommended fitness equipment for functional training to Kernwerk members, often at discounted member rates.
• Kernwerk Wear Branded merchandise line including apparel and fitness accessories for the Kernwerk community, sold through the Kernwerk Store (store.kernwerk.de).
• Kernwerk B2B Corporate Fitness (Firmenfitness) Enterprise fitness solution offered to companies under the Firmenfitness program with dedicated commercial terms and bulk licensing options, providing employees access to the AI-adapted Kernwerk platform as an employee wellness benefit.

Quantifiable outcome

• After 20–30 workouts, the AI delivers personal-trainer-quality workouts personalized to the user's fitness level and equipment.
• +2 more outcomes

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

AI capability3 records

Feature3 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Gewerkschaft der Polizei (GdP)coreGTM or Marketing PartnerThe Gewerkschaft der Polizei (GdP), Germany's largest police union, is listed as a Kernwerk partner. This partnership provides discounted Kernwerk fitness memberships to police officers, serving as a key institutional B2B GTM channel for the police segment.
• Sporthochschule Köln (German Sport University Cologne)coreStrategic or Co-development PartnerThe German Sport University Cologne is listed as a Kernwerk partner, indicating a sport-science collaboration that informs the training content and adds credibility to the coaching methodology.
• ParagymminorStrategic or Co-development PartnerKernwerk partners with Paragym to offer specialized fitness programming for wheelchair users, expanding accessibility and serving the disability fitness segment as part of its Kernwerk Purpose initiative.
• Billwerk GmbHcoreTechnology or IntegrationBillwerk GmbH (Mainzer Landstraße 33a, 60329 Frankfurt am Main) handles subscription management, billing, and invoice creation for Kernwerk. Kernwerk transmits customer name, address, contract details (term, amount, cancellation period, currency, payment method) to Billwerk for billing operations.
• STARTPLATZ (Cologne co-working)minorOthersKernwerk operates its Cologne office out of STARTPLATZ, a co-working and startup incubator space in Cologne's Mediapark.
• Lexquinta (Equipment Partner)minorChannel Partner/ Reseller/ DistributorKernwerk directs customers to lexquinta.kernwerk.de for purchasing recommended fitness equipment, indicating a reseller/equipment partner relationship.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• 8fit: Subscription fitness and nutrition app providing personalized workout and meal plans. Comparable business model and audience to Kernwerk, with AI-driven personalization and a similar price point.
• Future: US-based personal training app pairing users with real coaches supported by data and AI. Competes on the personalized coaching + technology promise that Kernwerk delivers via AI rather than human trainers.
• Fitbod: AI-driven strength training app that personalizes workout recommendations based on user performance, recovery, and available equipment. Closely comparable to Kernwerk's adaptive workout engine and equipment-profile concept.
• Gymondo: Berlin-based digital fitness platform offering workout videos, training plans, and nutrition coaching via subscription. A direct DACH-market peer in the app-based fitness subscription category.
• Aaptiv: Audio- and AI-guided workout subscription app delivering trainer-led sessions. Comparable as a digital fitness subscription with structured daily content and personalization features.
• Freeletics: Germany-headquartered AI-powered fitness coaching app offering personalized bodyweight and gym training. The most direct DACH competitor with a similar subscription-based, AI-personalized model and comparable target customer (self-directed fitness enthusiasts).

Broad incumbents

• Adidas Training: Adidas-branded workout app providing guided training sessions. A broad incumbent operating a similar fitness app category with the backing of a major German-headquartered sporting goods brand — directly relevant in Kernwerk's home DACH market.
• Peloton: Connected fitness platform offering hardware (bike, treadmill) paired with a subscription content library. Overlaps Kernwerk at the connected-fitness subscription layer, though with a different (equipment-anchored) delivery model.
• Nike Training Club (NTC): Nike's flagship fitness app offering free guided workouts across multiple disciplines. A broad incumbent with significant brand and content resources that overlaps Kernwerk's home-training and bodyweight use cases.

Emerging players

• Tonal: AI-powered smart home gym with adaptive strength training. Comparable in combining AI personalization with strength training, though anchored to proprietary hardware rather than equipment-agnostic delivery like Kernwerk.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/kernwerktraining
• LinkedInlinkedin.com/company/kernwerk-gmbh

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about KERNWERK GmbH