Construction Calc vs Locky Smart Lock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Construction Calc
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Designed by tradespeople, for tradespeople. Construction Calc Lite handles the heavy lifting of jobsite math—fractions, dimensional conversions, framing, and layout—so you can focus on the build. Whether you're a carpenter, concrete finisher, framer, superintendent, or DIYer, Construction Calc Lite delivers fast, accurate jobsite calculations with zero guesswork. WHY TRADES CHOOSE CONSTRUCTION CALC • True Feet-Inch-Fraction Math: Add, subtract, multiply, and divide in full dimensional fractions down to 1/16th (or user-set precision) with automatic reduction. • Seamless Unit Switching: Effortlessly mix Imperial and Metric. Convert feet-inch-fractions to meters, centimeters, or millimeters in a single tap. • Split-Screen Display: View decimal values, feet/inch fractions, memory registers, and scale factors simultaneously in large, high-visibility text. • Visual Cut & Layout Solvers: Dedicated modules for right triangles, miters, arcs, and baluster spacing complete with clear visual diagrams. • 50 Memory Registers & Full History: Never lose a cut list or measurement. Easily recall previous calculations on the fly. DEDICATED MODULES FOR EVERY TRADE • Framing & Layout: Calculate stud, fence post, and baluster spacing (horizontal, angled, or circular). • Miters & Trim: Visual miter and bevel angle calculator for crown molding and finish carpentry. • Geometry & Stairs: Instant solutions for right triangles, diagonals, rafter lengths, arcs, and chords. • Concrete, Volume & Area: Quickly calculate slab volume, footings, room square footage, and block/tank capacities. • Materials & Coverage: Estimate drywall sheets, tile, paint, and material costs with built-in waste allowances. • Smart Blueprint Scaling: Instantly scale plan drawings up or down to true field dimensions. BUILT FOR THE JOBSITE • High-Contrast Display: Large, legible fonts engineered for bright outdoor sunlight or dark crawl spaces. • Works 100% Offline: No cell service required on remote sites.
Locky Smart Lock
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You can easily manage and configure your door locks from anywhere
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Verdict
The clearest difference is price: Locky Smart Lock at Free against Construction Calc's $7.99. Locky Smart Lock also leads on iOS requirement (13.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Locky Smart Lock is free to download; Construction Calc costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Construction Calc | Locky Smart Lock |
|---|---|---|
| Price | $7.99 | Free — better |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPod, Apple Watch — better |
| Requires iOS | 26.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 27 MB | 341 MB |
| Age rating | 4+ | 4+ |
| Developer | Snappy Appz Inc. | BT Security |
In-app purchases
Construction Calc
No in-app purchases
Locky Smart Lock
No in-app purchases
Questions
Is Construction Calc free?
Is Locky Smart Lock free?
Do Construction Calc or Locky Smart Lock have ads?
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