What is Construction Calculator A1 Pro, and how does A1 compare with MeisterCalc?
Published · By Sai Nath
Construction Calculator A1 is an estimating app: 500+ calculators, a bill of quantities with PDF and Excel export, and a free tier of 5 calculations a day with ads; Pro lifts the limit and ads (US$39.99 lifetime on the App Store, 1 November 2026). MeisterCalc, which we make, suits chippies and concreters: 16 trade calculators, three of them free.
We make MeisterCalc, so read this with that in mind. We have not used Construction Calculator A1 on a job. Every fact about it comes from its own Google Play listing (Australia), its US App Store page and its maker’s website, as read on 1 November 2026. Google Play Australia shows prices in Australian dollars including GST; the US App Store, in US dollars. MeisterCalc’s price is set by Google Play in your currency, so none is quoted here. Other apps are in our comparisons.
What is Construction Calculator A1?
A civil engineering and estimating app by Binary and Bricks Pvt. Ltd. of Pune, India. Its Google Play listing calls it “a complete civil engineering toolkit” for engineers, contractors, architects, site supervisors and quantity surveyors, with “500+ calculators” that run from material estimation and RCC design to a bill of quantities.
The maker’s own website describes the same app as “200+ Calculations”. We give both figures as each page states them.
It is on Google Play (500K+ downloads, updated 28 October 2026), which also says it works on the web with the same account, and on the App Store for iPhone, iPad and Apple Watch (iOS 15.0 or later).
Is Construction Calculator A1 free?
Yes, with a daily limit. Its Google Play listing says the free version includes 5 calculations per day, 3 favourites and the core calculator set, and the listing is marked “Contains ads”. Referring a friend gives 24 hours of Pro free, per the same listing.
MeisterCalc’s free calculators, Concrete, Stairs and Check Square, have no daily limit and no ads. The other 13 unlock with a weekly subscription (3-day free trial) or a one-time lifetime unlock, as our support page sets out.
What does Construction Calculator A1 Pro add?
Pro is the upgrade inside the app, not a separate download. Per the Google Play listing, it adds:
- unlimited calculations and no ads;
- unlimited favourites, recents and custom formulas;
- Draw Shape and GPS Area for irregular plots, and more area and volume shapes;
- specialist tools: drywall, deck stain, vinyl fence, ladder, man-hours and arch;
- cloud sync across devices.
The App Store page also describes Ask A1, an AI site assistant in beta, with 5 free AI credits a month on the free plan and 20 with Pro. The same maker lists other apps on Google Play with “A1 PRO” in the name, such as Construction Expert A1 PRO; this page is about Construction Calculator A1 and its Pro upgrade.
How much is Construction Calculator A1 Pro?
On the US App Store, US$2.99 a month, US$24.99 a year or US$39.99 once for Lifetime Access, as listed on 1 November 2026. The page says Pro is “a monthly or yearly auto-renewing subscription, or as a one-time Lifetime purchase”.
| Checked on 1 November 2026, on each page linked in the row | ||
|---|---|---|
| Store | Item as listed | Price |
| App Store (US) | Pro access monthly subscription | US$2.99 |
| App Store (US) | Pro access yearly subscription | US$24.99 |
| App Store (US) | Lifetime Access | US$39.99 |
| App Store (US) | AI credits: 100, and two packs of 500 | US$0.99; US$3.99 and US$9.99 |
| Google Play (Australia) | In-app items; the listing does not say which is which | A$1.59 to A$40.99 per item |
Open the app to see the plans in your own currency before you pay.
How does Construction Calculator A1 compare with MeisterCalc?
They are different kinds of app. A1 is a broad estimating toolkit with paperwork; MeisterCalc is a 16-calculator trade app that draws each job as you type.
| Checked on 1 November 2026 (A1 from its own pages, linked in each row; MeisterCalc from the app and its Google Play listing) | ||
|---|---|---|
| Construction Calculator A1 | MeisterCalc (ours) | |
| What it is | Civil engineering and estimating toolkit, 500+ calculators (200+ on the maker’s site) | 16 calculators for chippies, builders, framers and concreters |
| Free version | 5 calculations a day, 3 favourites, the core set | Concrete, Stairs and Check Square, no daily limit |
| Ads | Contains ads; Pro removes them | None |
| Paid options | Pro monthly or yearly, or Lifetime Access | Weekly subscription (3-day free trial) or a one-time lifetime unlock |
| Drawings | A dimensioned drawing of what you entered: brickwork, steel shapes, concrete sections, excavation, stairs and more | A live diagram on every one of the 16, redrawn as you type |
| Estimating and export | Bill of quantities, cost estimator, material price library; PDF and Excel reports with your company logo | Optional price on Concrete, Decking, Stud Counter, Gravel, Soil and Asphalt; share results as text or PDF |
| Feet and inches | Feet-inch-fraction calculator with a running tape | Feet, inches and fractions as a setting, and the Feet & Inches calculator adds and subtracts them |
| Languages | 16 (Google Play); the US App Store lists English | English |
| Offline | “Calculations need no internet” | Every calculation runs on the phone |
| Platforms | Android, iPhone, iPad, Apple Watch and the web | Android 7.0 or later, on Google Play |
| Downloads and rating | 500K+ on Google Play, no rating shown; 4.7 from 29 ratings (US App Store) | 100+, no rating yet (Google Play) |
Which jobs is each app built for?
A1 is built for estimating whole jobs; MeisterCalc for the measurements a chippy or concreter takes on site. The A1 listing names:
- concrete for slabs, beams, columns, footings, staircases, retaining walls and culverts, and steel with bar bending schedules;
- brick, block and plaster; flooring, tile and plywood; paint; water tanks; excavation and backfill; shuttering;
- roofing (area, pitch, rafter length) and infrastructure: road, rail, dam, sewage and water supply;
- a construction cost estimator, area and volume shapes, and a unit converter.
MeisterCalc’s 16, by job:
- Stairs and balustrades: Stairs in three modes (Rise Only, Rise + Run, Run Only), giving risers, treads, the stairwell opening and the stringer length; Baluster Spacing with a running table of marks.
- Setting out and framing: Check Square, Equal Spacings, Running Measurements, Raked Walls, Stud Counter, Triangles, Pitch and Feet & Inches.
- Decks: Decking: boards across, lineal metres and an order figure with 10% added.
- Concrete, levels and groundwork: Concrete (Slab and Holes), Dumpy Level (reduced levels from staff readings), Gravel, Soil and Asphalt.
Of those 16, A1’s listing names concrete, roof pitch, concrete for a staircase and a feet-inch-fraction calculator. It doesn’t name a riser-and-going stair calculator, baluster spacing, check square, raked walls, running measurements, a dumpy level or a stud count. Not named means the listing doesn’t say; with 500+ calculators, some of them may still be in the app.
How much concrete does a 4000 × 3000 × 100 mm slab need?
1.2 m³, or 1.32 m³ to order with 10% extra. Here is the working.
- Inputs: length 4000 mm, width 3000 mm, depth 100 mm.
- Volume: 4.0 m × 3.0 m × 0.1 m = 1.200 m³, which is 1200 litres.
- Order with 10% extra: 1.200 × 1.10 = 1.320 m³.
In MeisterCalc, Concrete is free: Concrete ▸ Slab shows Volume 1.200 m³, Volume 1200.0 L and Order (+10%) 1.320 m³. Type your supplier’s price into the optional Price per m³ box and it adds Total Cost and Cost + 10% Waste.
Construction Calculator A1 works the other way round. Its App Store page says its concrete calculator gives “cement bags, sand, aggregate” with “mix ratios and grade selection”, and its latest Google Play release notes say cement comes “in the bag you actually buy: 94 lb, 50, 40, 25 or 20 kg”. We have not run it, so we don’t show its figures.
Which you need depends on how the concrete arrives. If you order premixed concrete by the cubic metre, the volume and the order figure are what the supplier asks for. If you mix on site from cement, sand and aggregate, A1’s split by mix ratio is the number you need; MeisterCalc doesn’t split a mix. For bagged premix, see how many 20 kg bags make a cubic metre.
Where is Construction Calculator A1 ahead?
On breadth, paperwork, platforms, languages and users.
- Breadth. 500+ calculators on its Google Play listing (200+ on the maker’s site), from rebar and bar bending schedules to brickwork, water tanks and roads. MeisterCalc has 16.
- Estimating and paperwork. A bill of quantities organised by project, a cost estimator with client quotations, a material price library with six regional presets, and PDF or Excel reports with your company header and signature. MeisterCalc shares a result as text or PDF.
- Feet-inch-fraction arithmetic. A feet-inch-fraction calculator with a running tape, per its listing. MeisterCalc shows feet and inches as a setting but doesn’t add or subtract them.
- More places to use it. iPhone, iPad and Apple Watch on the App Store, the web with the same account, and cloud sync (Pro) with Google Drive and iCloud backup, per Google Play.
- Languages. 16 on the Google Play listing; MeisterCalc is in English.
- Far more users. 500K+ downloads on Google Play, against MeisterCalc’s 100+.
Where is MeisterCalc ahead?
On the everyday trade set, the free tier and the drawing.
- The trade calculators by name. Stairs with risers, goings, the stairwell opening and the stringer; Baluster Spacing and Running Measurements with a running table of marks you can have read out; Check Square with the racking gap; Raked Walls in pitch or two-height mode; Dumpy Level reduced levels; Stud Counter. A1’s listing doesn’t name these; its stairs appear as concrete for a staircase and in its drawings.
- A free tier without a daily cap or ads. Concrete, Stairs and Check Square, as often as you like. A1’s free version is 5 calculations a day with ads, per its listing.
- A live diagram on every calculator. All 16 draw the job, labelled with your numbers, and redraw it as you type. A1’s listing says its calculators generate a dimensioned drawing of what you entered for brickwork, steel, concrete, excavation, stairs and more, so both draw; MeisterCalc does it on all of its calculators.
- Millimetres first, in Australian, New Zealand and UK site terms. Going, rise, stringer, reduced level, lineal metres. More in a construction calculator app that works in millimetres.
Both sell a one-time unlock (A1’s Lifetime Access is listed on the App Store), and both say calculations work offline.
Who should pick which?
Pick Construction Calculator A1 if you estimate whole jobs: quantity surveying, RCC and rebar, brickwork, civil works, or a bill of quantities to send a client. Pick MeisterCalc if you are a chippy, framer or concreter who wants the trade set with a live diagram on every calculator, three calculators free with no daily cap, and a one-time lifetime unlock for the rest. For a wider field, see the best construction calculator apps for Android and the apps you can buy once.
Questions people ask
What is Construction Calculator A1 Pro?
The paid upgrade inside the free app: no daily limit, no ads, cloud sync and the specialist tools, as a monthly or yearly subscription or Lifetime Access (US App Store, 1 November 2026).
Is there a Construction Calculator A1 Pro mod APK?
People search for one. Get Construction Calculator A1, and any app, from Google Play or the App Store.
Can you use Construction Calculator A1 on a PC?
Its Google Play listing says you can use the same account on the web, and names phone, tablet, Apple Watch and the web.
Does Construction Calculator A1 work offline?
Yes, per its listing: “calculations need no internet”.
How many calculators does Construction Calculator A1 have?
500+ on its Google Play listing and App Store page; 200+ calculations on the maker’s website.
Does MeisterCalc make a bill of quantities?
No. It works out one job at a time, can price Concrete, Decking, Stud Counter, Gravel, Soil and Asphalt from a rate you type in, and shares each result as text or a PDF.
What are the limits of this comparison?
- We did not install or time Construction Calculator A1. Everything about it is what its own pages, such as its Google Play listing, said on 1 November 2026.
- Its Google Play listing and its website give different calculator counts (500+ and 200+), and Google Play names 16 languages where the US App Store lists English. We report each as stated.
- Prices differ by store and country, and change. Check the store or the app before you pay.
- An app is a calculator, not an engineer or an inspector. Your drawings, the engineer and the local building authority decide what gets built; no app makes work compliant.
Facts about Construction Calculator A1 on this page were checked on 1 November 2026 against its Google Play listing (Australia), its US App Store page and binaryandbricks.com. MeisterCalc’s facts come from the app itself and its Google Play listing, read the same day. Spotted something out of date? Write to meruappsdev@gmail.com.
How do you try MeisterCalc?
Install it from Google Play. Concrete, Stairs and Check Square work straight away, with no trial and no account; the other 13 unlock with the weekly subscription (3-day free trial) or the one-time lifetime unlock. It runs on Android 7.0 or later. For feet-inch sums in a browser, our free page with all the construction calculators needs no app.