Terms of use

Fast Lane is operated by Røssner Productions ApS, CVR 45469883, Njalsgade 21 F, 2., 2300 København S, Denmark ("we", "us"). By creating an account you accept these terms, our privacy policy and our refund policy.

You must be at least 18 years old and legally able to enter into this agreement. If you are accepting on behalf of a business, you confirm you are authorised to do so.

Fast Lane is a software service that builds running training plans, diagnoses your main performance limiter, calculates training zones and fuelling, analyses running form from a video, provides an automated coach, and — if you choose — writes planned workouts to a connected training calendar. It is a self-guided tool. It is not personal coaching, supervision, physiotherapy or medical care, and no human reviews your individual training before you do it.

Everything you see, use and access in Fast Lane is the intellectual property of Røssner Productions ApS. This includes the Fast Lane name, brand, logos, videos, PDFs, written content, training frameworks (including The Limiter Fixing Framework, The Faster Fueling Framework, The Free Speed Protocol and The PSI Strength Training System), calculators, algorithms, coaching output, software, designs, documentation and any other materials made available through the app.

These materials are protected by Danish and international copyright, trademark and other intellectual property laws (including the Danish ophavsretslov and varemærkelov). All rights not expressly granted to you in these terms are reserved by us.

Some pages embed videos or other media from third-party platforms, for example the YouTube technique demonstrations shown in the strength-training section. Those items are not owned by us. They remain the property of their respective creators, are displayed through standard platform embedding, and your use of them is governed by the terms of the platform and the creator.

We grant you a personal, non-exclusive, non-transferable and revocable license to use the app and its outputs for your own training purposes. You may not:

• copy, download, scrape, mirror, reproduce, distribute, publicly display, perform, broadcast, sell, rent, sublicense, translate or modify any part of the app or its content;
• create derivative works, reverse-engineer, decompile, disassemble, or otherwise attempt to extract the source code or underlying methodology;
• use the content, frameworks or methodology to build a competing product or service;
• remove or alter any copyright, trademark or other proprietary notices; or
• share account access or resell access to the app.

This license ends automatically when your account ends or if you breach these terms.

Training plans, limiter results, coach conversations and other information you enter or generate remain your data. You grant Røssner Productions ApS a non-exclusive, worldwide, royalty-free license to store, process, back up, display to you, and use in anonymized or aggregated form to improve the service.

You confirm you have the right to upload anything you submit, including any video you analyse, and that it does not infringe anyone else's rights or show a person who has not agreed to it.

Any feedback or suggestions you send us may be used without obligation to compensate or credit you.

All plans, frameworks, calculators, videos, form analyses and coaching suggestions are general educational training guidance. They are not medical advice, diagnosis or treatment, and no coach-patient or physician-patient relationship is created.

You confirm that you are medically fit to train and that you have consulted, or will consult, a qualified health professional before starting or changing a training, nutrition or strength programme — in particular if you have an injury, illness, are pregnant, or have any cardiovascular, metabolic or other health condition.

Everything Fast Lane suggests is done entirely at your own risk. This includes easy and long runs, interval and threshold sessions, sprints and strides, plyometrics, strength and mobility work, racing and time trials, training in heat, cold or at altitude, following pace, power or heart-rate targets, and any change to your fuelling, hydration or carbohydrate intake.

You understand and accept that these activities carry inherent risks that cannot be eliminated, including muscle, tendon, joint and bone injury, stress fractures, overtraining and illness, heat stroke, hyponatraemia, gastrointestinal problems, fainting, cardiac events, permanent disability and death.

You alone decide whether to start, continue, modify or skip any session. You are responsible for judging whether a suggested workout, pace, distance or fuelling amount is safe and appropriate for you on the day, and for your surroundings — traffic, terrain, weather, equipment and training alone. You voluntarily accept all of these risks and waive, to the fullest extent permitted by law, any claim against us arising from them.

Stop immediately and seek medical help if you experience pain, dizziness, faintness, chest discomfort or shortness of breath.

Plans, limiter diagnoses, training zones, pace and heart-rate targets, fuelling amounts, running-form scores and coach replies are generated automatically by software and AI models from the information available to us. They can be incomplete, out of date or simply wrong, and they cannot see your full health picture.

You must sanity-check every number and instruction before acting on it, and you accept full responsibility for doing so. AI output is not professional, medical, nutritional or financial advice.

Fast Lane can connect to intervals.icu and, through it, to data originating from Garmin or other watches and devices. We also rely on hosting, database, email, AI and payment providers. We do not control any of them.

We are not liable for anything caused by those services, including outages, delays, incorrect, missing, duplicated or deleted data, a watch or app showing the wrong workout or the wrong targets, a service changing, restricting or ending its interface, or a security incident on their side. Connecting any third-party service is optional and at your own risk, and your use of it is governed by that provider's own terms.

You authorise the app to create, change and delete Fast Lane workouts in your connected calendar, including automatically removing remaining Fast Lane workouts when your access ends or your account is deleted. You remain responsible for checking your calendar before you train.

The app is provided "as is" and "as available", without warranties of any kind, express or implied, including any warranty of accuracy, merchantability, fitness for a particular purpose or uninterrupted availability, to the fullest extent permitted by law.

We do not promise that the app is free of bugs, errors or defects, that it will always be available, that features will not change or be removed, or that any particular result, time, fitness gain or race outcome will follow from using it. We may change, suspend or discontinue features at any time.

We are not liable for loss or corruption of data, including plans, coaching conversations, assessments or history. You are responsible for keeping your own copies of anything you need to retain.

To the fullest extent permitted by applicable law, Røssner Productions ApS and its owners, employees, contractors or partners are not liable for any personal injury, health consequence, illness, disability or death, nor for any financial or economic loss — including lost income, profits, savings, business, opportunity, goodwill, race entry fees, travel and accommodation costs, coaching or medical costs, or lost data — nor for any indirect, incidental, special, punitive or consequential damages, arising out of or in connection with your use of the app, its content, its calculators, its coaching or form-analysis output, any connected third-party service, or any training you undertake based on them.

Where liability cannot lawfully be excluded, our total aggregate liability is limited to the amount you actually paid us for the service in the twelve (12) months preceding the event giving rise to the claim. Nothing in these terms excludes liability that cannot be excluded under mandatory Danish law, such as liability for intent or gross negligence, or your mandatory rights as a consumer.

You agree to hold us harmless from and against any claim, demand, loss or cost brought by a third party and arising from your use of the app, from content you upload, from your breach of these terms, or from your unlawful use of the service — except to the extent it is caused by our intent or gross negligence.

Paid access is sold as a subscription that renews automatically for the chosen period until you cancel. Our order process is conducted by our online reseller Paddle.com. Paddle.com is the Merchant of Record for all our orders. Paddle provides all customer service inquiries and handles returns. Payment, billing, tax and invoicing are governed by Paddle's Buyer Terms.

Prices are shown before you buy and may include VAT depending on your country. We will announce any price change before it applies to your next renewal, and you can cancel before then. If a payment fails, access may be paused or ended after the retries our payment provider performs.

You can cancel at any time and keep access until the end of the period you have paid for. As soon as paid access ends, remaining Fast Lane workouts are removed from a connected training calendar and the connection is disconnected; you can reconnect and re-export after resubscribing. Your saved plan and history stay in your account. Your right of withdrawal and our money-back guarantee are described in the refund policy.

You are responsible for keeping your sign-in details and any connected API keys secure, for the accuracy of the information you enter, and for all activity under your account. You may not resell, scrape or redistribute the app and its content, interfere with or probe the service, upload malware, attempt to bypass access limits or payment, or use the app unlawfully or in a way that harms the service or other members.

We may suspend or terminate accounts for material breach of these terms, non-payment, suspected fraud or a security risk. You can stop using the app and delete your account at any time from Profile → Account settings.

Your training data is yours. While your account is active you can download a machine-readable copy of everything we hold about you at any time from Profile → Download my data, so you are never locked in.

If you cancel, your saved plan and history stay in your account, and Profile stays available so you can download a copy at any time. Your data is removed when you delete your account, as described in the privacy policy. As soon as paid access ends, remaining Fast Lane workouts are cleared from a connected training calendar and the connection is disconnected.

Data that reaches us from your watch or another training service through a connection you set up is used only to provide Fast Lane to you. We will not use it to develop a competing device or connected product, and we will not pass it on to anyone else without your agreement, except the providers named in the privacy policy or where the law requires it.

We are not responsible for delays or failures caused by events beyond our reasonable control, including outages at our providers, network failures, illness, strikes, fire, war or acts of authorities.

You may not transfer your account or these terms to anyone else. We may transfer them as part of a merger, acquisition or sale of the business. If any provision is found unenforceable, the rest remains in force.

We may update these terms as the service develops. Material changes will be shown in the app or sent to the email address on your account before they take effect. Continued use after that date means you accept the updated terms.

These terms and any dispute or claim arising out of them or your use of the app are governed by Danish law, excluding its conflict-of-law rules. Any dispute shall be settled by the Danish courts, with the Copenhagen City Court (Københavns Byret) as the court of first instance. Consumers may also complain to the Danish Center for Klageløsning or to another national dispute resolution body in the EU. Mandatory consumer protection rights in your country of residence remain unaffected.