1001 calculators. 250 of them free, forever.
Mortgage, income tax, VAT, loan EMI, BMI, concrete, macros, GPA — across 28 categories, with the working shown so you can check the answer. No account, no sign-in, no internet.
1001 Pro Calculators and Tools
One thousand and one calculators. No ads, ever.
Price a job, send the quote, work out anything. On your phone, offline, with nothing sent anywhere.
250 calculators free forever · 30-day trial · Pro £0.99 a year, introductory
Most calculator apps give you fifty tools and bury them in adverts. This one gives you 1001 and shows you none.
See it work
What it looks like
Quote a job in five minutes.
Itemised quotation, estimate or invoice on your own letterhead. Materials split from labour, tax at its rate, signature block. Out as a PDF, or straight into WhatsApp as an image.
Nothing you type leaves the phone.
No adverts on either tier, no analytics, no crash reporting, no account. The app requests no permissions at all — not even internet.
The detail
- Free
- 250 calculators, forever, across all 28 categories. No account, no sign-in, and no advert on any tier.
- Trial
- 30 days with the whole product unlocked. No card is asked for, and the trial runs on the device rather than through the store.
- Pro
- £0.99 a year — an introductory price, for a limited time. It is normally £2.99 a year. All 1001 calculators, every worksheet, and unlimited PDF and CSV export.
Getting in on Android
On iPhone and iPad, the TestFlight button above is all you need — it adds you straight away. Android works differently. Google Play only lets an invited address into a closed test, so the Google Play button will turn you away until your address is on the tester list. Send the request below and you will be added to it.
This opens your own email app with the message ready. Nothing is typed into this website and nothing is stored here — the request goes straight from your mail account to ours.
In testing now on both Android and iPhone. 250 calculators free forever, no ads on any tier, and Pro is £0.99 for the first year.
Arithmetic, not advice. Rates and tax bands vary by country and change. Check anything you act on against the body that sets it.