Comparison

VISUAL SENSOR vs Construction Calc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

VISUAL SENSOR

Read full description

VISUAL SENSOR is a precise monitoring service for crop climate and soil, providing 15 agroclimatic parameters every 21 minutes. It is the result of research into the best existing solutions for improving crop efficiency and sustainability, helping optimize water consumption and determining the optimal timing for treatments. Through sensor data, you can track and analyze agronomic and environmental parameters. These systems gather information that allows the user to make decisions with great precision related to irrigation planning, crop monitoring, optimal treatment timing, and harvest timing. It is an intelligent agriculture model with data that considers historical information, real-time data, and predictive models. It reduces potential risks that crops may face due to forecasts of heavy rains, frost, or heatwaves. With VISUAL SENSOR, you will combat yield reduction and have real-time monitoring with your fields connected, from the very beginning and throughout the year, wherever you want. It will always be available and accessible from any of your devices. What does it include? Connection to agroclimatic event prediction systems for a 7-day outlook and also connection to thousands of public network stations, which you can select without limits and combine to create an information panel with high capabilities for comparison and tracking of parameters affecting crops. All these stations are geolocated and visually displayed on a map, helping you get an overview of field and crop conditions at a glance. You can connect with sensors and stations from other manufacturers; we support interconnectivity to enhance the user experience and environmental awareness, always aiming to provide greater precision to the system. You can share access and availability of information with as many guests and collaborators as you choose. The agile and simple communication makes management systems more efficient; hence, we facilitate communication within the user's collaborative community. Once installed, it automatically geolocates and starts receiving data, alerts, and predictions from the very beginning, with simple interfaces that aid in interpreting and reading data. It's also available in audio mode to enhance accessibility and avoid physical contact. It has been developed by the specialists at VisuaNACert, taking into account agronomic knowledge and the feedback clients have provided over the years, as well as their needs, risks, and opportunities to achieve better and more sustainable agriculture. It is designed to be used by farmers, field technicians, nurseries, advisors, gardening enthusiasts with private plots, research centers, insurance entities, and large-scale agricultural projects aiming for more profitable and sustainable farming. Benefits of VISUAL SENSOR: • Water only when necessary, in appropriate amounts • Water consumption savings, up to 40% reductions • Improved quality and production by reducing plant stress • Reduced use of pesticides and fertilizers • Selecting the optimal timing for treatments, achieving uniform treatments, and preventing product losses and drift • Demonstrating commitment to Sustainable Development Goals (SDGs) • Control over crop cycles • Alignment with the goals of the European Green Deal, anticipating its fulfillment • Contributing to sustainable agriculture, with a direct impact on end consumer expectations

About

Construction Calc

This offline calculator helps construction professionals and DIYers quickly estimate materials for various projects. It supports imperial and metric units, and all calculations are stored locally for privacy. No internet connection is required.

Highlights
  • Offline material estimation
  • Calculates 8 key materials
  • Feet-Inch-Fraction input
  • Imperial & Metric units
  • Local data storage
  • No subscriptions or ads
Features
Read full description

The only offline calculator you need on the job site. No internet? No problem. Contractor Calc works 100% offline — so you get fast, accurate material estimates right when you need them. Estimate 8 key materials in seconds: Concrete (slabs, footings) Drywall (sheets with waste) Paint (gallons & liters) Roofing (squares with pitch) Gravel & Mulch (cubic yards/m³) Tile (tiles with cuts) Insulation (ft²/m²) Stairs (riser, tread, stringer) Built for pros, trusted by contractors: • Feet-Inch-Fraction Input — enter 12' 6" like you measure • Imperial & Metric — switch units in Settings • No subscriptions. No ads. No cloud. • All calculations stored locally — your data stays private Perfect for: • Residential & commercial contractors • Carpenters, framers, roofers, painters • DIYers tackling big projects • Estimators preparing bids Join thousands of builders who ditched spreadsheets and paper calculators. Get precise, professional results — every time.

Screenshots

VISUAL SENSOR4 screens
Construction Calc3 screens

Verdict

The call

The clearest difference is in-app purchases: VISUAL SENSOR at none against Construction Calc's 1. VISUAL SENSOR also leads on update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Construction Calc sells 1 one-off in-app purchase. VISUAL SENSOR asks for nothing beyond the download.

UpkeepUpdate frequency

VISUAL SENSOR ships an update every 2 weeks, Construction Calc every 3 months. The most recent releases landed on September 20, 2026 and September 12, 2026 respectively.

Scorecard2 real differences · 7 level
VISUAL SENSOR versus Construction Calc: the parameters behind the verdict, then further details
ParameterVISUAL SENSORConstruction Calc
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.6 — better
Further details — not scored
Size102 MB3 MB
Age rating4+17+
DeveloperVisualnacert S.LKonstantin Khoroshun

In-app purchases

None

VISUAL SENSOR

No in-app purchases

1 purchases

Construction Calc

One-time1
  • Pro Features$9.99

Questions

Is VISUAL SENSOR free?
VISUAL SENSOR is free to download, with no in-app purchases.
Is Construction Calc free?
Construction Calc is free to download, with in-app purchases available.
Do VISUAL SENSOR or Construction Calc have ads?
Neither VISUAL SENSOR nor Construction Calc shows ads.
Which is updated more often, VISUAL SENSOR or Construction Calc?
VISUAL SENSOR ships an update every 2 weeks, and Construction Calc every 3 months. Most recently, VISUAL SENSOR was updated on September 20, 2026 and Construction Calc on September 12, 2026.

Other comparisons