1001 Pro Calculators and Tools · compared
Five apps, or one.
An all-in-one calculator, a construction calculator, an app for each trade, something for quotes, a timesheet and a budget. Or 1001 Pro Calculators and Tools: all of them, offline, with no adverts and nothing sent anywhere.
- No adverts, on any tier
- Works with no signal
- No data collected
- No account
The drawer of apps it replaces
All-in-one calculator
Often
Construction calculator
Often
Plumbing, electrical, HVAC apps
Often
Quote and invoice app
Often
Timesheet app
Often
Budget app
Often
1001 Pro Calculators and Tools
1,001 calculators, ten trade tool sets, quotes, timesheets and a budget planner
Side by side
| What you need | What it usually takes | 1001 Pro Calculators and Tools |
|---|---|---|
| No adverts | Often shown on free tiers | None, free or Pro |
| Everyday calculators | An all-in-one calculator app | 1,001 in 28 categories, 250 free |
| Working shown | Often only the answer | Every answer shows its working |
| Feet, inches and fractions | A construction calculator, often a subscription | Construction tools, with stairs, rafters, hips and valleys |
| Stairs and roofs drawn | Rarely; one figure per keystroke | Drawn to scale, every riser marked |
| Plumbing, electrical, HVAC | A separate app for each trade | Ten tool sets, 133 solvers |
| Quotes and invoices | An invoicing app, usually monthly | On your letterhead, as a PDF or into WhatsApp |
| Timesheet to take-home pay | A timesheet app | Hours to tax, pension and take-home pay |
| Monthly budget | A budgeting app, often linked to your bank | What comes in, what goes out, what could move |
| Works with no signal | Varies; many need a connection | Everything, in flight mode too |
| Your data | Many collect usage and personal data | None collected, as declared on Google Play |
What it costs
Usually
Several apps, several subscriptions, each renewing on its own date, and often a free tier paid for with adverts.
1001 Pro Calculators and Tools
Free
250 calculators, for good, with no adverts
£0.99
Pro for the first year, then £2.99 a year
£9.99
Trade Tools, once, with a year of Pro
A 7-day free trial through Google Play opens Pro and the trade tools.
What one app looks like
Where a dedicated app may suit you better
Said plainly, so you can choose well.
The deepest tool for one trade
A long-standing single-trade app may go further in that trade, or connect to a laser measure. Try this app's tools on your own jobs first.
Invoices into accounting software
A dedicated invoicing app may sync with your bookkeeping. This one sends a document and keeps the record on your phone.
A budget filled in from your bank
Budgeting apps that connect to your bank read your spending for you. This one never connects to anything.
iPhone today
The iPhone and iPad version is in TestFlight beta while the App Store version is in review.
Clear the drawer.
Start with the 250 free calculators. No account, no adverts, and nothing you type leaves your phone.
Checked 2 October 2026. Apps change, so check anything that matters to you before you choose.