DesignPayment protectionDetails
- Revisions within the package are free.
- If you do not respond within 3 days of delivery, the work is accepted automatically.
The money is reserved when you pay and released only once you accept the work.

Example result
Cleaning cost calculator for a cleaning company's site
Client: Sparkle Home Cleaning. Task: a calculator in four steps that works out the price of a cleaning from its type, the size of the home, the bathrooms and the extras, by the client's rates, and leads to booking by WhatsApp or phone.
The client and all details are made up.
About this service
A loan calculator shows a visitor what a payment could be for the amount and term they have in mind. Give us the formula, such as annuity or equal principal parts, the rates or the rule for them, the limits on amount and term, the fees to include and the note that must appear under the result, and we build one block for your site: the texts, pictures drawn for it and the code. It counts at once in the browser, then offers to call or message you. It only does the arithmetic your rules set: it is not financial advice, an offer or an approval, and it does not check credit or save or send what visitors enter. We never choose rates.
What is included
- What you getA ZIP archive with the block's HTML, styles.css, script.js and pictures, an example page and a short guide to putting it on your site, and a preview you can try on the order page.
- Your formula and ratesThe block counts exactly the way you define
- Limits you setMinimum and maximum amount and term
- Your note under the resultSuch as: an estimate, not an offer
- The next step leads to youButtons to call, write or message you after the result
- Works on phonesEasy to tap and read on small screens
How it works
- 1FormulaYou give the formula, rates, limits, the note and a worked example
- 2BlockWe write the texts, draw the pictures and build the block; you try it on a computer and a phone on the order page
- 3ArchiveYou download the archive, ask for changes within your package and paste the block into your site
What we need from you
The formula and one or two worked examples to check it by (an amount, term and rate with the payment you expect), the rates or how they depend on the term or the down payment, the limits, the fees to include, the currency and rounding, the note to show under the result and any wording your law or regulator requires; where the buttons lead; your site's colours. Optionally up to 5 pictures as PNG, JPEG or WebP: your logo or pictures that you have the right to use.
We will ask you:
- The formula
- Rates and limits
- Fees, currency and rounding
- The note under the result
- Where should the buttons lead?
Compare packages
| Packages | BasicPayment by your formula$21 | StandardCalculator with steps$39 | PremiumWith result screens$67 |
|---|---|---|---|
| Deadline | 1 day | 2 days | 3 days |
| Revisions | 1 | 2 | 3 |
| Blocks | 1 | 1 | 1 |
| Fields or questions | up to 5 | up to 10 | up to 15 |
| Steps with a progress bar | No | Yes | Yes |
| Result screens with explanation | No | No | Yes |
| Pictures drawn for the block | 1 | 2 | 3 |
| Formula | yours, e.g. annuity or equal parts | yours, e.g. annuity or equal parts | yours, e.g. annuity or equal parts |
| Order Basic | Order Standard | Order Premium |
Payment protection
You pay when you order, but the money is released only for accepted work.
- Fixed priceThe package price does not change after you pay.
- The money is reservedWhen you pay, the amount is only reserved. It is released to the service once you accept the work.
- Checked before deliveryEvery result goes through a quality check before it reaches you, and you see it on the order page before accepting it.
- Free revisionsAsk for changes within your brief as many times as the package allows.
- Acceptance after 3 daysIf within 3 days of delivery you neither accept the work nor ask for changes, it is accepted automatically. If you write in the order chat after delivery, the order waits; once we answer, we may start the 3 days again and will say so in the chat.
- Redo or a full refundIf the result does not match your brief and the revisions did not fix it, or the work takes more than twice its deadline, write in the order chat: we will redo the work or refund the payment in full.
Questions and answers
Does the calculator give financial advice?
No. It shows what your formula gives for the numbers the visitor enters. It is not advice, an offer or an approval: the real terms depend on the lender's decision, and the formulas and their use on your site are your responsibility.
Which rate will it use?
Only the rates you give, or a rate the visitor types in, if you want that field. We never pick or look up rates.
Can it show the total to pay and the interest?
Yes, if you give the rule for them. Every figure on the result screen comes from your formula, rounded the way you say.
How do we make sure the figures are right?
Send one or two worked examples with the payment you expect. We check the block against them, and you try it on the order page before you download.
Will it collect loan applications?
No. The block does not save or send anything visitors enter. After the result it offers buttons to call or message you; applications stay with the process you already have.
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