Where we stand, before the list. We make Handyman Calc, a feet, inch and fraction calculator, free with ads. It is last below, the page does not end by recommending it, and no app named here pays us a referral fee.
Framers who can expense $39.99 a year should get Construction Master Pro. If you would rather pay once, get Snappy Appz’s Construction Calc. Winograd’s Feet and Inches Calculator is the cheap one that also covers electrical and pipe work.
The short answer, by how you work
App Store ratings and update dates were read on 26 October 2026. Prices and Google Play figures are from our reading on 1 October 2026, in the full comparison.
| If you | Use | Why |
|---|---|---|
| Frame roofs and stairs every day | Construction Master Pro Calc | Deepest math; $39.99 a year after a trial |
| Want the same maker for less | Construction Master 5 Calc | 13,382 ratings at 4.8; $34.99 a year |
| Do several trades | Feet and Inches Calculator | Stairs, rafters, pipe, electrical; $14.99 lifetime |
| Want to pay once, no ads | Construction Calc (Snappy Appz) | $7.99 on iPhone, $7.49 on Android |
| Want a clean keypad in your language | Construction Calculator (xNeat) | 31 languages; Data Not Collected |
| Want no ads and no data on Android | Tape Calc | Free adding to 1/64″; new and small |
| Do weekend projects and buy materials | Handyman Calc (ours) | Exact fractions plus material calculators; ads |
Each pick in a paragraph
Construction Master Pro Calc
The app of the calculator framers have carried for decades, with 40,387 App Store ratings at 4.8, updated 2 September 2026. Irregular hips and valleys, crown angles, compound miters and full trig are all in it. It costs $4.99 a month or $39.99 a year after a 14-day trial.
Construction Master 5 Calc
The same publisher’s other model, with 13,382 ratings at 4.8. Its plan is $3.99 a month or $34.99 a year. The two apps list different functions, so compare them key by key before choosing on price.
Feet and Inches Calculator, by Winograd Apps
The broadest of the cheap options, on both stores, with 420 App Store ratings at 4.6 and an update on 20 October 2026. It adds stair stringers, rafters, pipe offsets, electrical tools and tile layout. It is free with ads, and a lifetime upgrade is $14.99.
Construction Calc, by Snappy Appz
A paid app with no ads, $7.99 on the App Store and $7.49 on Google Play, plus a free Lite version with ads. It has 50 memory registers, miters, stairs and concrete, and works offline. Snappy lists several near-identical apps, so check the name and price before you buy.
Construction Calculator, by xNeat
A tidy fraction keypad in 31 languages, with 672 ratings at 4.7, updated 24 October 2026. Stairs, rafters and arcs are add-ons or part of a subscription. Apple’s panel reads Data Not Collected.
Tape Calc, by witty apps
An Android app with 100+ downloads, no ads, no subscription and a Data safety section that says no data collected. Adding fractions is free. Area, volume and conversions are a one-time Pro purchase.
Handyman Calc, ours
Free with ads and nothing to buy, on both stores. It keeps every length as an exact fraction and rounds once, to 1/16″ unless you choose otherwise, with material calculators from concrete to stairs. It has no hip, valley or jack rafters and no trig keys.
What these do better than ours
Construction Master Pro is the deeper calculator by a distance, with the key layout people learned on the hardware. Winograd’s covers trades ours ignores. Tape Calc collects nothing and shows no ads. Snappy’s paid app and Winograd’s lifetime upgrade remove ads for a one-time price, and ours offers no way to pay them off. If you frame roofs every day, pay for Construction Master.
- App Store — Construction Master Pro Calc
- Calculated Industries — Construction Master calculators
- App Store — Construction Master 5 Calc
- App Store — Feet and Inches Calculator (Winograd Apps)
- App Store — Construction Calc (Snappy Appz)
- App Store — Construction Calc Lite (Snappy Appz)
- App Store — Construction Calculator (xNeat)
- Google Play — Tape Calc (witty apps)
- App Store — Handyman Calc, ours
- Google Play — Handyman Calc, ours