Grete

What Grete does

Grete (doing business as "Grete, the TrainerAI") is a Vienna-based private company founded in 2016 that operates an AI-powered adaptive endurance training platform for individual athletes. The product targets endurance athletes engaged in running, cycling, swimming, and related disciplines, with the stated value proposition of delivering personalized training programs that adjust to each user's performance and progress rather than offering generic, one-size-fits-all plans. The offering is branded as a single unified product under the TrainerAI identity, distributed as a web application at grete.io with self-serve sign-up, sign-in, and password recovery flows consistent with a product-led growth model.

The underlying technology is described as an AI-powered adaptive endurance training system, with adaptive program personalization cited as the proprietary differentiator using a novel method architecture. No further technical disclosure is available: there are no documented AI models, datasets, patents, APIs, SDKs, or integration partners in the supplied data, and the company has no mobile app, certifications, or compliance attestations on record. Marketing and distribution channels beyond the direct web platform are not disclosed, and the company maintains no public pricing page, meaning monetization mechanics are inferred rather than confirmed.

The business model is a SaaS subscription with recurring billing implied for athlete access to adaptive training programs, although no price points, tiers, or free-trial mechanics are publicly disclosed. The company operates with 1-10 employees, has no recorded funding rounds, management team roster, ownership structure, or named enterprise customers in the input data, and reports an active operating status based on the functional state of its web properties. Overall the company presents as an early-stage, bootstrapped consumer subscription product targeting a global endurance athlete audience, with the brand and value proposition centered on AI-led personalization rather than on disclosed technical depth or scale signals.

Name

Grete

Website

https://grete.io

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

1–10 employees

Short description

Grete (Grete, the TrainerAI) is a Vienna-based private company operating an AI-powered adaptive endurance training web platform that delivers personalized training programs to individual athletes via a self-serve subscription model.

Ownership category

akta.pro rank

Product category

AI Fitness Coaching / Endurance Training Software

NAICS

Sports and Recreation Instruction (611620)

akta.pro primary industry

Adaptive & Para-Sport Coaching (HSADAEAM)

Keywords

• AI fitness coaching
• Endurance training software
• Adaptive training platform
• Athlete performance AI
• Personal training technology

Headquarters

HQ city

Vienna

HQ country

Austria

HQ region

Europe

Markets served

GTM type

B2C

Offering type

Software

Cost components

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

Revenue model

1. Subscription Access: SaaS subscription model for AI-powered endurance training access, likely with recurring subscription billing for athletes seeking adaptive training programs.

Go-to-market motion1 record

Distribution channels1 record

Core offering

Grete operates Grete, the TrainerAI, an AI-powered adaptive endurance training platform that delivers personalized training programs for athletes. The platform adjusts training recommendations based on individual performance data and supports disciplines such as running, cycling, swimming, and other endurance sports. Athletes access the service through a self-serve web application at grete.io.

Product overview

Grete offers a single unified product called Grete, the TrainerAI — an adaptive endurance training platform powered by AI for athletes. The platform appears to provide personalized training recommendations that adapt to each athlete's performance and needs.

Differentiator

Problem solved

Functional benefit

Products and services

• Grete, the TrainerAI

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Recent moves3 records

Expansion highlights4 records

Direct peers

• TrainingPeaks: Long-established endurance training planning platform for runners, cyclists, and triathletes. Directly comparable to Grete in target athlete (running/cycling/swimming endurance) and core offering (structured adaptive training plans), with a far larger coach and self-coached athlete base.
• Strava: Social fitness network dominant among endurance athletes with workout tracking, segments, and a paid subscription tier with training guidance. Competes head-on for the same running/cycling/swimming athlete attention and trainer features.
• Freeletics: AI-driven personal training app delivering adaptive workout plans via self-serve subscription. Comparable business model and AI-coaching premise to Grete, though broader fitness rather than endurance-specific.
• Final Surge: Endurance coaching and training platform for runners, cyclists, and triathletes that delivers adaptive workout plans. Closely aligned with Grete on use case (adaptive endurance training for self-coached athletes) and target segment.
• Aaptiv: Subscription fitness app delivering guided audio workouts and adaptive training programs. Comparable to Grete as a digital subscription coaching product targeting self-directed athletes.

Emerging players

• Runna: AI-generated personalized running training plans delivered as a self-serve mobile subscription. Highly comparable product/GTM motion to Grete (adaptive, AI, consumer subscription, endurance) but focused on running only.

Broad incumbents

• Peloton: Subscription fitness platform with adaptive content across running, cycling, and strength. Comparable in subscription-based adaptive coaching, though anchored in connected hardware and a much broader content library.
• WHOOP: Performance wearables + subscription membership that delivers adaptive strain/recovery coaching to endurance athletes. Overlaps with Grete on adaptive coaching and subscription, but anchored in hardware rather than pure software.
• Garmin Connect: Free training, analytics, and adaptive plan ecosystem from the dominant endurance wearables vendor. Comparable in target athlete and training-plan functionality, with massive scale and deep device integration.
• Nike Run Club: Free, brand-funded adaptive running coaching app from Nike. Competes for the same running audience as Grete but as part of a much broader apparel/equipment portfolio.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key highlights5 records

Customer concentration

• Xx.com/meetgrete
• Facebookfacebook.com/meetgrete
• LinkedInlinkedin.com/company/grete

Revenue estimate

Valuation estimate

Number of profiles

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 Grete