# A1 Builders Calculator - Free Construction Measurements Calc > Construction calculator for measurements, roofing, framing, foundations, and more. (iPhone/iPad app by Robert Daily.) - Source: https://appshunter.io/ios/app/a1-builders-calculator-free-construction-measurements-calc/id820893949 (this page in markdown: same URL + `.md`) - Developer: [Robert Daily](https://appshunter.io/developer/550432972) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 2.60/5 from 14 App Store ratings · 42 written reviews indexed - Age rating: 4+ - Requires: iOS 5.1.1 · 38 MB - Languages: American English - Released: 2014-03-21 - Data updated: 2026-06-10 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/a1-builders-calculator-free-construction-measurements-calc/id820893949/reviews.md ## What is A1 Builders Calculator? The most innovative, feature-rich, user-friendly construction app now available. Quickly determine calculations of construction projects and get immediate concepts for your new projects. FEATURES: IMPERIAL MEASUREMENTS ROOFING FRAMING WALL, FLOOR & CEILING FOUNDATION PAVING & CONCRETE MEASUREMENT LANDSCAPING RAFTERS EQUAL SPACES RUNNING MEASUREMENT SQUARE UP STAIRS MASONRY ADDITIONAL FEATURES: Regular calculator: Run equations (+, -, *, /, %) just as you would on a conventional finance calculator. Compass and Converter Install now and always have the calculating power you need on you, whenever you need it. And with all of the extra functions, you will be able to take calculating, take-offs, & on-site job efficiency to a whole new level! ## Key features - Imperial measurements - Roofing calculations - Framing calculations - Foundation calculations - Paving & concrete tools - Rafter and stair calculations - Regular calculator, compass, converter ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove Ads | $1.99 | one-time | ## Recent user reviews (10 of 42) All indexed reviews: https://appshunter.io/ios/app/a1-builders-calculator-free-construction-measurements-calc/id820893949/reviews.md ### 1/5 — Not great! *2018-12-05, version 2.1* Paid to remove the adds & you still get them!!! Only works in ft & inches NOT metric!! Waste of £1.99 ### 1/5 — Complete con! *2018-10-10, version 2.1* Waste of time as the app does nothing other than try to sell you a more advanced version or link you to websites to spend money. Apple should not allow this kind of rubbish in their App Store! ### 1/5 — Doesn’t work properly! *2018-09-14, version 2.1* I’ve upgraded but the Slab feature doesn’t work, every time you try and put the depth measurement in the answer box disappears, also it closes down when ever it feels like it and the upgrade doesn’t get rid of the annoying pop-up ads... please fix these bugs otherwise it shouldn’t be in the App Store, one has to wonder if Apple checks the apps before they sell them!???? ### 1/5 — Junk *2018-05-04, version 2.1* Paid $3 to get the adds to stop, and open the other calculators, I still get adds and the calculator give you such large fractions, I don’t even know what they are. For example it gave me 66’5-333/500” What the heck is 333/500” of an inch ### 2/5 — Waist of money. *2017-09-06* Paid 1.99 to get rid of adds and it didn't work. ### 1/5 — Do not buy! *2017-04-30* Purchased this app to calculate if a frame is square. The results are not understandable. ### 1/5 — Nul *2016-10-03, version 2.1* Nul ### 1/5 — Free? *2016-09-04* The only thing free about this app is the download. ### 1/5 — Another con!! *2016-08-27, version 2.1* This app looked really handy but i cant be doing with the pop ups!...so payed the £1.49!...waste of time! still get adverts!!...don't false advertise!!...are you that hard up for cash you need to lie about £1.49??...give us buyers a break please! Apart from that, app has some useful calculators but if you don't like the adds don't waste your money!!! ### 2/5 — Ok but riddled with ads *2016-08-24* I downloaded this app and the first calculator I tried to use required an in-app purchase of $1.99. I made the purchase which also promised to remove the ads. It unlocked the calculator and removed the small banner ad at the bottom. However, it did not remove the annoying pop-up video ads which seem to pop up about every 3rd calculation and you must wait several seconds before closing them. If you're going to pay for a calculator of this type just buy one without ads. I wasted $1.99. ## Frequently asked questions about A1 Builders Calculator ### What does the A1 Builders Calculator app do? This app provides a comprehensive set of tools for construction calculations. It helps users quickly determine measurements for various projects like roofing, framing, foundations, paving, and landscaping. It also includes a standard calculator, compass, and unit converter. ### What are the key features of this construction calculator? Key features include specialized calculators for roofing, framing, wall/floor/ceiling, foundation, paving, landscaping, rafters, equal spaces, running measurements, square-ups, stairs, and masonry. It also offers a regular calculator with basic arithmetic functions, a compass, and a unit converter. ### Is the A1 Builders Calculator app free to use? The app is free to download and use, offering a range of features without initial cost. However, it does have in-app purchases, suggesting that some advanced features or functionalities might be available for an additional fee. ### Who is the target audience for this app? This app is designed for construction professionals, contractors, builders, and DIY enthusiasts. Anyone involved in construction projects who needs to perform quick and accurate on-site calculations will find this app beneficial. ### What are some common use cases for the A1 Builders Calculator? Common use cases include calculating materials needed for roofing, framing walls, pouring concrete foundations, or planning landscaping. It's also useful for ensuring accurate measurements on-site, performing quick take-offs, and improving overall job efficiency. ## Version history (last 4 releases) ### 2.1 — 2015-07-02 This app has been updated by Apple to display the Apple Watch app icon. With New UI and Feature ### 2.0 — 2014-10-21 Thanks for using our app. We are always trying to provide best experience to our users. This app is now optimized for iOS 8. Please spend some time in rating our app if you enjoy using it. It really helps and appreciates us to bring much better content for you. ### 1.1 — 2014-05-08 Bug Fixed. ### 1.0 — 2014-03-21 No release notes. ## Apps similar to A1 Builders Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Construction Master 5 Calc](https://appshunter.io/ios/app/construction-master-5-calc/id370412148) | 4.9 (12,082) | Free | Utilities | | [Construction Calculator](https://appshunter.io/ios/app/construction-calculator/id1092417398) | 4.7 (554) | Free | Utilities | | [Construction Calculator Master](https://appshunter.io/ios/app/construction-calculator-master/id1623283646) | 4.3 (436) | Free | Utilities | | [Feet and Inches Calculator](https://appshunter.io/ios/app/feet-and-inches-calculator/id1072241945) | 4.6 (384) | Free | Utilities | | [Material Estimator Calculator](https://appshunter.io/ios/app/material-estimator-calculator/id376071081) | 4.8 (2,927) | Free | Utilities | | [Construction Master Pro Calc](https://appshunter.io/ios/app/construction-master-pro-calc/id370406446) | 4.8 (38,283) | Free | Utilities | ## More apps by Robert Daily - [Afro Pimp - FREE Comic Pic Creator with Bling Teeth, Cap & More](https://appshunter.io/ios/app/afro-pimp-free-comic-pic-creator-with-bling-teeth-cap-and-more/id588983021) - [Builder Calculator: Measurement of Concrete, Stair, Square for Construction Free](https://appshunter.io/ios/app/builder-calculator-measurement-of-concrete-stair-square-for-construction-free/id730352729) - [Amateur Dentist 2: Crazy Dental Club for Girls, Guys & Penguin - Surgery Games](https://appshunter.io/ios/app/amateur-dentist-2-crazy-dental-club-for-girls-guys-and-penguin-surgery-games/id732814131) - [Align Food Crush - Be a Crunchy Match up Cham](https://appshunter.io/ios/app/align-food-crush-be-a-crunchy-match-up-cham/id862382701) - [Disturbed Dentist: Amateur Dental Office for Teeth Makeover of Girls, Boys & Monsters FREE](https://appshunter.io/ios/app/disturbed-dentist-amateur-dental-office-for-teeth-makeover-of-girls-boys-and-monsters-free/id864815892) All apps by Robert Daily: https://appshunter.io/developer/550432972 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*