Terms of Service
Last updated: 29 September 2026
These terms are a contract between you and ME ASPECT LTD (company number 14471480, registered office Unit 10 EDEAL Business Centre, Dittons Park, Dittons Road, Polegate, BN26 6HY), trading as MarginLens. By creating an account or connecting your Amazon Seller Central account, you agree to them. Our Privacy Policy explains how we handle data and forms part of these terms.
Business use only
MarginLens is provided to businesses and sole traders for business purposes. It is not offered to consumers, and consumer protection rules that apply only to consumers do not apply to it. By signing up you confirm you are acting in the course of a business.
The service
MarginLens reads sales, financial, fee, inventory, advertising and related data from your own Amazon Seller Central account, with your authorisation, and presents it as dashboards, reports and alerts. It does not place orders, change listings or prices, or take any other action on your Amazon account. It reads.
Your account
- Keep your sign-in details secure. You are responsible for what happens under your account.
- You must have authority to connect the Amazon account you connect — as its owner or an authorised user.
- You can revoke MarginLens's access at any time from Seller Central's "Manage your apps" page.
- You can delete your account and all its data at any time from the Account page, on the web or in the app. Deleting cancels any subscription immediately and cannot be undone. The Privacy Policy explains what is deleted and when.
Free trial
Your 14-day free trial of the Software plan starts the moment you connect your Amazon account. No card is taken and nothing is charged during the trial. When the 14 days end, the trial simply ends; to keep using MarginLens you subscribe from the Account page on our website. Nothing is charged unless you do. One trial per Amazon seller account. If you subscribe before your trial ends, you are not charged for your plan until it does. A guided setup call, if you add one, is charged when you subscribe.
Plans
There are two plans, shown with their current prices on marginlens.net:
- Software — the full MarginLens service: the web dashboard, the iPhone app, every connection and email support. Billed monthly or annually.
- Review — everything in Software, plus one call of up to 30 minutes each month with a founder of MarginLens to go through your figures, with written actions added to your dashboard afterwards. Billed monthly.
The software is the same on both plans; Review adds the call and the written actions, not features.
The Review call
- Each paid month on Review includes one call of up to 30 minutes, booked at a time we agree with you. Calls are by video or phone.
- An unused call does not carry over to the next month and is not refunded. If we have to cancel a call and cannot rearrange it within that month, we will add a call to the following month.
- The call and the written actions are our view of your figures to help you run your business. They are not financial, tax, legal or accounting advice, and you remain responsible for the decisions you make. See "Figures are not advice" below.
The guided setup call
- A guided setup call is one video call of up to 30 minutes with a founder of MarginLens, to choose your settings with you and explain your own figures.
- On the Software plan it is an optional extra, paid for once at the price shown at checkout. It is not a subscription and is never charged again. With a Software subscription at the founding price the call is included at no extra charge.
- On the Review plan one guided setup call is included at no extra charge. Taking it is your choice.
- The call must be taken within 30 days of the day you paid for it, or of the day your Review subscription started.
- If you have paid for a call and have not booked one within those 30 days, we refund what you paid for it in full.
- If you miss a call you booked, we will rearrange it up to twice, within the same 30 days. After that, or once the 30 days have passed, a booked call that was not taken is not rearranged or refunded.
- If we have to cancel a call, we will rearrange it, and the 30 days are extended by as long as it takes us to do so.
- Like the Review call, a guided setup call is our view of your figures to help you run your business. It is not financial, tax, legal or accounting advice. See "Figures are not advice" below.
Prices and VAT
- All prices are shown excluding VAT. UK VAT at the standard rate is added at checkout and shown on every invoice. If you give us a valid UK VAT number it appears on your invoices.
- You pay the price shown at checkout when you subscribe. We will give you at least 30 days' notice of any change to the price of an existing subscription, which takes effect from your next billing date after that.
Founding prices
- For a limited number of early subscribers to each plan we offer a lower founding price. The number of founding places for each plan is shown on our pricing page, and each is taken when a subscription at the founding price starts.
- A founding price does not rise for as long as that subscription stays active. This is an exception to the price-change notice above.
- If you cancel, or your subscription ends because a payment fails and is not put right, the founding price ends with it. A new subscription later is at the price then shown. Founding places are not reopened when someone cancels.
- A founding price applies to the plan you subscribed to. If you move to a different plan, you pay that plan's founding price only if a founding place on it is still available, otherwise its standard price. Annual billing is always at the standard annual price.
Billing, cancelling and refunds
- Subscriptions are billed in advance through Stripe and renew automatically at the end of each billing period until cancelled.
- You subscribe, update your card, see your invoices and cancel from the Account page on our website, or by emailing admin@marginlens.net. To change plan, email us.
- The iPhone app does not sell subscriptions. It shows your plan and lets you use the service you have subscribed to.
- Cancelling stops all future charges. Your access continues to the end of the period you have already paid for, then ends.
- We do not give refunds for partial billing periods. The guided setup call has its own refund rule, above.
- If a payment fails, Stripe will retry it over the following days. If it is not put right, the subscription ends.
- Cancelling does not delete your data by itself; the Privacy Policy explains the 90-day rule, and you can delete your account at once from the Account page.
Acceptable use
You agree not to:
- Resell, sublicense or share access to MarginLens, or use one account for more than one business
- Reverse engineer, decompile or otherwise try to extract the source code of the service
- Scrape, crawl or otherwise access the service by automated means other than through features we provide for that purpose
- Use the service to break Amazon's own terms, or to do anything unlawful
- Interfere with the service or other customers' use of it, or attempt to access another customer's data
We may suspend or close an account that breaks these rules. Where practical we will warn you first.
Amazon's own terms
Your use of Amazon Seller Central, the Selling Partner API and Amazon Ads remains governed by Amazon's terms and policies. MarginLens is not affiliated with, endorsed by or sponsored by Amazon.
Figures are not advice
Everything MarginLens shows — profit, fees, VAT, payout estimates — is calculated from data Amazon provides and may include estimates, which the app labels as such. It is not financial, tax or legal advice. Check anything that matters against your own Amazon reports and take professional advice for tax filings and similar decisions.
No warranty, and the limit on our liability
MarginLens is provided "as is" and "as available". We do not promise it will be uninterrupted or error-free, or that it will suit your particular purpose, and we exclude any warranties implied by law to the extent the law allows.
To the extent permitted by law we are not liable for indirect, incidental or consequential loss, or for lost profits, lost revenue, lost data or business interruption, arising from your use of the service. Our total liability to you for everything arising out of or in connection with these terms and the service, in contract, tort or otherwise, is capped at the fees you paid us in the 12 months before the claim arose. Nothing in these terms excludes liability for death or personal injury caused by negligence, for fraud, or for anything else that cannot be excluded by law.
The iPhone app
If you use the MarginLens app for iPhone, these terms apply to it. These terms are between you and ME ASPECT LTD, not Apple, and Apple is not responsible for the app or its content. Apple has no obligation to provide maintenance or support for it; support comes from us at admin@marginlens.net. Apple is not responsible for any claim relating to the app, including product liability claims, claims that it fails to meet a legal or regulatory requirement, or consumer protection claims; any such claim is for us to deal with, to the extent these terms do not exclude it. If anyone claims the app infringes their intellectual property, we, not Apple, are responsible for dealing with it. You confirm you are not in a country subject to a US government embargo or on a US government list of prohibited or restricted parties. Apple and its subsidiaries are third-party beneficiaries of this section and may enforce it. Your use of the app must also follow the App Store's usage rules.
Changes to the service or these terms
We may change the service, and these terms, from time to time. For a change to these terms that affects you materially we will tell you in the app or by email at least 14 days before it takes effect. Continuing to use MarginLens after that is acceptance of the change; if you do not accept it, cancel before it takes effect.
Governing law
These terms are governed by the law of England and Wales, and the courts of England and Wales have exclusive jurisdiction over any dispute about them or the service.
Contact
ME ASPECT LTD, trading as MarginLens — admin@marginlens.net