Plans
Every calculator is free. Pay only to keep and present your numbers.
Choose how you want to be billed, then the plan that fits how you use the calculators. The free plan is supported by ads; Personal and Advisor have none. Change or cancel from your account at any time.
For anyone
Free
Use every calculator, see the working, embed one on your site with a small credit line.
- All 1,327 calculators
- Supported by ads
- Embeds with a "Calculator by" line
- With a free account: 5 saved calculations and 1 private link
For your own numbers
Personal
Keep every scenario, compare them side by side, export and share them, and embed calculators in your colour.
- No ads
- Unlimited saved calculations and comparisons
- Reusable assumptions, PDF and CSV export
- Unlimited private links
- Embeds with no credit line, your colour, views by website
- Hosted embed figures
Secure checkout by Stripe opens after you sign in or create a free account. Already registered? Sign in.
For your clients' numbers
Advisor
Everything in Personal, presented under your own name to the people you advise.
- Everything in Personal
- Your name, contact line and disclaimer on reports and client pages
- Scenarios grouped by client, one PDF per client
- One embed token per website, each with its own colour and figures
- Priority support within one business day
Secure checkout opens after you sign in or create a free account.
Prices in US dollars plus any tax shown at checkout. Every paid plan renews until you cancel and is covered by a 14-day money-back promise on any charge.
Compare plans
| What you get | Free | Personal | Advisor |
|---|---|---|---|
| All 1,327 calculators, live results, working and sources | ✓ | ✓ | ✓ |
| Ads | Ads keep the free plan free | None | None |
| Saved calculations (encrypted) | 5 calculations | Unlimited | Unlimited |
| Side-by-side comparisons and reusable assumptions | — | ✓ | ✓ |
| PDF and CSV export | ✓ | ✓ | ✓ |
| Private read-only links | 1 link | Unlimited | Unlimited |
| Embed calculators on your website | With our credit line | No credit line, your colour, views by website | Same, one token per website |
| Hosted embed figures (change a rate once, every page follows) | — | ✓ | Per website |
| Your name, contact line and disclaimer on reports and client pages | — | — | ✓ |
| Clients: scenarios grouped by client, one PDF per client | — | — | ✓ |
| Priority support, reply within one business day | — | — | ✓ |
| Money-back promise | — | 14 days on any charge | 14 days on any charge |
From answer to decision
Compare the assumptions that change your outcome.
Name a scenario, adjust the figures, and place alternatives side by side. Keep the working attached so another person can understand how the result was reached.
- Calculate with the free tool.
- Save only when the scenario matters.
- Compare, export, or share the decision.
Private by design
Your scenarios belong in your workspace.
Nothing is saved automatically. You decide which scenarios are worth keeping.
Saved titles, inputs, results, and reusable assumptions are encrypted at rest with keys we hold, and decrypted only to show them to you or to someone opening a private link you created.
Private links are read-only, expire, can be revoked, and never outlive the saved scenario.
Questions, answered
Before you choose
Do I have to pay to use the calculators?
No. Every calculation, result, working and source stays free without an account.
What does a free account add?
You can keep 5 saved calculations and 1 private link, and export what you saved as PDF or CSV. Personal removes the limits and adds comparisons and assumption profiles.
Which billing periods are there?
Personal is $29 a year or $5 a month; Advisor is $149 a year or $19 a month. Prices are in US dollars plus any tax shown at checkout. Every option renews automatically until you cancel and is covered by the same 14-day money-back promise.
What is Advisor for?
People who run the numbers for clients. Reports and private links carry your own name, contact line and disclaimer; scenarios group by client with one PDF per client; each website you embed on gets its own token, colour and figures; and support answers you first. Moving from Personal to Advisor happens on the same subscription with the difference prorated.
How does the money-back promise work?
Email support within 14 days of any charge, first payment or renewal, and it is refunded in full to the original payment method. See the refund policy.
Can I cancel?
Yes. Account → Manage billing opens the billing portal of the payment provider, where one click cancels. No email, no questions. Access continues to the end of the paid period and your account returns to Free with everything still readable and exportable.
Who charges my card?
Checkout is provided by Stripe. The checkout page shows the seller of record, taxes and the receipt terms before you pay.
Ready when the decision matters
Keep the numbers that matter.
Personal is $29 a year or $5 a month. Every calculator stays free.
Create a free account