Luxmeter vs Structura
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Luxmeter
This app measures light intensity in lux and provides real-time exposure suggestions for photography. It offers customizable settings for shutter speed, aperture, and ISO, with options for both front and back cameras. It's designed for personal use to optimize lighting and capture better photos.
- Light intensity measurement (lux, foot-candles)
- Real-time color temperature readings
- Exposure suggestions
- Manual shutter speed, aperture, ISO control
- Front and back camera support
- Customizable settings
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LuxMeter is a 2-in-1 light intensity (lux) and exposure meter with customizable settings. Whether you want to capture the perfect photo or optimize lighting in any space, LuxMeter provides good-quality readings right on your phone. Key Features: - Real-time color temperature readings - Light intensity measurements in lux and foot-candles - Tracking of average and maximum light levels - Real-time suggestions for optimal exposure settings - Manual adjustment and locking of shutter speed, aperture, and ISO - Intuitive and customizable controls - For front and back cam - Customizable settings for shutter speed, ISO, aperture - Preview and adjust diaphragm settings before shooting Please note, that the LuxMeter app is not a replacement for a professional lux meter and should be used for personal needs only. Terms of Use - https://luxmeter-landing.vercel.app/privacy Privacy Policy - https://luxmeter-landing.vercel.app/terms
Structura
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Structural design for building engineers, to BS 8110-1:1997. Run a whole-building load takedown, design every column in a grid, and get a bar bending schedule and drawings — from your phone, on site or in the office. Built for Nigerian practice, by a COREN civil engineer. WHAT IT DESIGNS • Building takedown — accumulates Gk and Qk from roof through floors, walls and self weights, then designs the typical slab, beam, ground column and footing in one pass • Column grid — every column in a bays × bays grid, classified corner, edge and interior with exact tributary areas, with a plan map of the families • Slabs — one-way and two-way solid slabs, Table 3.13 and 3.14 coefficients, flexure, shear and deflection • Beams — singly and doubly reinforced, shear links, span/depth deflection check • Columns — short columns by equations 38 and 39, slender columns to clause 3.8.3, biaxial bending to 3.8.4.5 • Foundations — pad footings, strip footings under blockwork, and solid rafts • Stairs, lintels • Wind and stability — storey shears, base shear, overturning, sway against h/500 and the P-delta stability index EVERY RESULT IS A CALC SHEET Formula, substituted values, and a PASS or FAIL on each check — not just an answer. Designs that fail say what to change. Every sheet carries its scope and limitations. BAR BENDING SCHEDULES AND QUANTITIES Schedules to BS 8666 with shape codes, cutting lengths and nominal masses. Bills of quantities in concrete, steel, formwork and excavation, priced with your own naira rates. DRAWINGS Foundation layout general arrangement and a detail sheet per member, exported as PDF or DXF for your CAD. PROJECTS AND REPORTS Group designs into client jobs and export a branded PDF report with your practice details and COREN number. Work is stored on your phone, with an optional backup to your account. HOW TALL IT GOES Gravity-only designs stop at four storeys. With wind design, eight — braced walls, a core, or a moment frame. The app tells you which and why, rather than quietly designing something it should not. WHAT IT WILL NOT DO A PASS means the design checks out for the loads you entered, not that a building is safe to build. There is no seismic design, no piled foundation, and settlement is not calculated. Bar bending lengths use simplified anchorage and lap assumptions stated on each sheet. You are the reviewing engineer, and every output says so. FREE AND PAID Single members — slab, beam, column, footing, strip footing, stair, lintel, raft and wind — are free, however many you run. A credit unlocks one project: a whole-building takedown or a column grid. Revising that project, re-running it and re-exporting it are free forever. An unpaid run still shows whether the building passes and every warning with it, so finding out that a design fails costs nothing. Structura is a product of GreatCallie International Ltd.
Screenshots
Verdict
The clearest difference is in-app purchases: Structura at none against Luxmeter's 7. Structura also leads on ads (none vs shown) and device support (3 vs 1). Luxmeter's advantage is update cadence (every 5 days vs every 10 days). On price 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
Both are free to download. Luxmeter sells 7 in-app purchases, starting at $5.99 per 7 days. Structura asks for nothing beyond the download.
Luxmeter ships an update every 5 days, Structura every 10 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Luxmeter | Structura |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (253 ratings) — better | — |
| Positive reviews | 7.7% of reviews | — |
| Number of ratings | 253 — better | — |
| Update frequency | Every 5 days — better | Every 10 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | STOMBERG s.r.o | Greatcallie International Ltd |
In-app purchases
Luxmeter
- Luxmeter Pro7 Days trial$5.997 Days
- Luxmeter Pro$5.997 Days
- Luxmeter Pro3 Days trial$8.997 Days
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- Luxmeter Pro7 Days trial$9.997 Days
- Luxmeter Pro3 Days trial$9.997 Days
- Luxmeter Pro$9.997 Days
- Luxmeter Pro$29.991 Year
Structura
No in-app purchases
Questions
Is Luxmeter free?
Is Structura free?
Do Luxmeter or Structura have ads?
Which is updated more often, Luxmeter or Structura?
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