Terms of sale

Last updated: 10 November 2026

These terms are the agreement between you and us when you buy Monocle Vision. Please read them before you order. By ordering, you accept these terms.

1. Who we are

Monocle Vision is made and sold by YELLOW OAK (INNOVATION, TECHNOLOGY, ENGINEERING) LIMITED ("we", "us"), a company registered in England and Wales with company number 12406493. Registered office: 565 Green Lanes, London, N8 0RL, United Kingdom. Email: hello@monoclevision.com.

2. What we sell

Software. A licence to use the Monocle Vision software on one device, delivered as a download.

Kit. The same licence, together with a mainboard on which the software is installed and tested before we ship it.

Screens, cameras, speakers, housings and other hardware are not included unless we agree this with you in writing. What each option includes is shown on our pricing page at the time you order.

Monocle Vision is sold for use by businesses in the optical trade. You confirm that you buy it for your business.

3. Your licence

  • The licence is for one device. For more devices, you buy one licence for each.
  • The licence has no end date. You pay once.
  • You may move the licence to a replacement device if the first device fails or is retired.
  • You may not copy the software for other stores, resell it, rent it, or remove our notices from it. Ask us first if you want to transfer the licence to a new owner of your store.
  • The software and all rights in it remain ours. Open source parts keep their own licences.

4. Price and payment

Prices are in US dollars. The kit price includes delivery. Prices do not include VAT, sales tax or import duties. Taxes and customs charges in your country are yours to pay. Payment is taken through Stripe when you order.

5. Delivery

Software: we email the download link and install guide, normally within two business days of payment.

Kit: delivery is included in the price. We email you the expected dispatch date after payment. Risk in the kit passes to you on delivery. Ownership passes when we have received full payment.

6. Updates and support

Your purchase includes software updates and email support for 12 months from the date of delivery. After that, the software continues to work. Later updates and support are available at the price we publish at that time.

Support covers installation, configuration and faults in the software. It does not cover the screens, cameras and other hardware you bought elsewhere.

7. Services from other companies

Some features use services that other companies provide, and you need your own account with them:

  • The voice assistant uses the Google Gemini Live service. You enter your own API key, and Google charges you for use under its own terms.
  • Virtual Try-On opens the portal of your frame supplier. You need your own login.

These companies can change or stop their services. We do not control them, and a change on their side is not a fault in Monocle Vision.

8. Professional use

Monocle Vision is a tool for trained opticians. The measurements it proposes depend on calibration, lighting, the camera and how the customer stands. A qualified person must check and approve every measurement before a lens is ordered. You are responsible for that check and for meeting the rules that apply to optical dispensing in your country.

9. Data about your customers

The software stores customer records, photos and measurements on your device. You are the controller of that data, and you are responsible for telling your customers about it and for having a lawful basis to keep it. We do not receive it unless you send it to us for support. See our privacy policy.

10. Refunds, returns and warranty

You can ask for your money back within 14 days. The mainboard in the kit has a 12-month warranty. The full rules are in our refund and returns policy.

11. Our liability

We will supply the software with reasonable care and skill, and it will work materially as described on our website. We do not promise that it will be free of every fault or that it will suit hardware we have not approved.

Nothing in these terms limits liability that cannot be limited by law, such as liability for death or personal injury caused by negligence, or for fraud. Otherwise:

  • we are not liable for loss of profit, loss of business, remade lenses or frames, or indirect loss;
  • our total liability to you is limited to the amount you paid us for the order concerned.

12. Changes

We may change these terms for future orders. The terms on this page on the day you order apply to that order.

13. Law

These terms are governed by the law of England and Wales. The courts of England and Wales have jurisdiction.

Contact

Email hello@monoclevision.com.