Licence terms
These terms cover Science Teacher Helper in both of its forms - the add-in for Microsoft Word and the classic template for desktop Word. They are the whole agreement between you and the seller. The pricing page shows the current prices; where it and the checkout page ever disagree about an amount, the amount you are shown at checkout is the one that applies.
1. Who you are dealing with
Science Teacher Helper is sold by Zhongcheng Huang (黄忠诚), an individual developer based in mainland China. He is a person rather than a company, so there is no registered business address behind the products, and no VAT or company number to quote. The products are published under the name Hammsoft Inc.
The seller's contact address for everything on this page is myhama@hotmail.com. That mailbox is read by a person, and it is the only support address the seller maintains, so there is nowhere else to look for an answer.
By installing the product, signing in, or buying a licence, you agree to these terms. You must be 18 or older to buy a licence.
If a sentence here and the pricing page disagree about anything other than a price, this page is the one that governs the licence.
2. What the licence is
One licence covers one teacher and the computers that teacher personally uses - typically one at work and one at home. It covers both versions of the product, and every feature of the major version you bought (3.1), together with the compatibility fixes released for it.
It is a licence to use the software and its drawing library. The copyright in the library and in the program stays with the seller.
The licence is bought once. There is no renewal date and no standing authority to charge you again; further payments happen only if you decide to buy again (section 8).
3. What you may do
- Install and use the product on the computers you personally use, including installing both versions.
- Put the drawings into your teaching materials - worksheets, handouts, presentations, exam papers, revision guides and your school's learning platform.
- Print, photocopy and project those materials, and give them to students.
- Adapt a drawing: recolour it, delete parts of it, relabel it, or combine it with your own content.
- Keep using the version you bought for as long as it works on your Word.
4. What is not allowed
- Sharing the licence, the installer, the activation key or the drawing library with colleagues who are not covered - that is what a school licence is for.
- Redistributing, reselling or publishing the library itself, or bundling it into a product or service you sell.
- Using the drawings in a competing drawing library, template pack or clip-art collection, or feeding the library in bulk to a drawing or image-generation model of any kind.
- Removing or obscuring copyright notices, or using the seller's trade name or logos as your own.
- Sharing an activation key publicly, or systematically generating keys.
5. The trial
Every version includes a 7-day trial with the whole library, and no card is asked for at any point. Both trials are counted on your own computer: the add-in's starts the first time you open its panel, and the classic template's the first time you open it. Documents you created during the trial keep working afterwards.
6. Price, payment and tax
A licence is a single payment of US$39.99, printed in USD on the pricing page and shown again on the checkout page. Waffo Pancake is the payment processor and the seller of record: it takes the payment, issues the receipt or invoice and handles any sales tax or VAT. Card details are typed on Waffo Pancake's own checkout page, and are never sent to, or stored on, the seller's servers.
7. Refunds
If the product does not suit you, write to myhama@hotmail.com within 30 days of buying and ask for a refund. The seller asks Waffo Pancake to send the money back to the card it came from. Because Waffo Pancake issues the invoice and holds the payment, its own refund rules govern how the money moves and how long a bank takes to show it. That same 30-day window is stated on the checkout page before you pay.
8. Renewals and cancellation
The licence on sale is a once-only purchase: the payment is taken a single time, and nothing is charged again unless you decide to buy again. If a plan that renews is ever offered, this page will describe it before you buy, the renewal amount and date will appear on the checkout page, and you will be able to stop the next charge yourself, from inside the add-in or by writing to the address above.
9. Upgrades
Your licence covers version 3.1 and its compatibility fixes. A later major version (the v3.1 upgrade pack) is a separate purchase at US$14.90, and it is your choice whether to make it: version 3.1 keeps working, and keeps receiving the fixes described in section 2, whether or not you upgrade.
10. Support
Support is by email at myhama@hotmail.com, for the current version of the product. Installation, licensing and fault reports are all answered there. Telephone support is something the seller does not offer, and Word itself is outside the support scope. A report of a mistake in a drawing is welcome, and is usually corrected in the next release. Billing questions are answered within two business days, and a confirmed billing error is put right within five.
11. Warranty and liability
The software and its drawing library are provided as is. The seller looks at anything you report, but does not promise that the product is free of errors, or that it works with a Word version that was never tested.
To the extent the law allows, implied warranties are excluded and the seller's total liability is limited to the amount you paid for the licence. Liability that the law does not allow to be limited stays exactly as the law sets it.
A drawing that renders wrongly counts as a fault in the product rather than as something to live with: send the figure's name and your Word version, and it will be looked at.
12. Privacy and your data
What this website and the product do with personal data is set out in the privacy policy, which forms part of these terms. Card details are handled entirely by Waffo Pancake; the seller's own records hold the email address given at checkout and the record of the licence key issued for that order, and nothing else about a purchase.
13. Term, termination and withdrawal of a licence
The licence lasts as long as you keep to these terms. It ends if they are broken - for example by redistributing the library, or by publishing an activation key. After that, stop using the product and remove the library; documents you have already made remain yours to keep and use.
A licence is withdrawn when its purchase is refunded or reversed: the key then stops being accepted when the add-in next reaches the licence service, and the record behind it is marked withdrawn. Write to myhama@hotmail.com to have an order's data deleted - that removes the email address and the key record held for it, and the key already on your computer keeps working for the version you paid for.
14. AI and third-party models
The drawing library is vector artwork authored by hand. The product does not call a third-party AI model to make a figure or to insert one, and nothing you type or insert is used to train a model.
15. Changes to these terms
These terms are updated when the product changes. A change that affects what you may do, or what you pay, is announced at least 14 days before it takes effect, by email to the address used at checkout. From that date, continuing to use the product means accepting the newer version.
16. Governing law
These terms are governed by the laws of the People's Republic of China. Before starting formal proceedings, write to the address in section 17 and the disagreement will be looked at properly first. The rights your own consumer law gives you are unaffected by this section.
17. Contact
One mailbox covers every question about these terms: general support, billing, refunds, privacy and security. Write to myhama@hotmail.com. A billing dispute is answered within two business days, and a confirmed billing error is settled within five.
Microsoft, Word and Office are trademarks of Microsoft Corporation. The seller builds for that platform and is an independent developer rather than a Microsoft company or partner.
Terms version 1.0, effective 2026-10-07, covering Science Teacher Helper version 3.1. Seller: Zhongcheng Huang (黄忠诚), an individual developer in mainland China. A dated copy of each version is kept, so a past purchase can always be checked against the terms that applied when it was made.