Comparison

Construction Instruction Ci vs Lomanco Vent Tools

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

Head to head
About

Construction Instruction Ci

Access a vast library of videos and articles on building and construction. Get instant, reliable information on products, materials, and installation methods from experienced professionals. Explore building science and find best practices anytime, anywhere.

Highlights
  • High-quality videos and articles
  • Product and material information
  • Installation methods
  • Technical data
  • Step-by-step best practices
  • Searchable content
Features
Read full description

Large collection of high quality videos and articles for building and construction professionals. The Ci app was created by a team of independent building experts with over 60 years of combined building experience. This application provides builders and contractors instant and reliable information on products and materials, installation methods, technical data and much more. Better building science, anytime, anywhere. Innovative solutions are rapidly emerging from all quarters: policies, certifications, research, education, and manufacturing. Building science integrates these innovation into the context of the whole house system. Now, homeowners, remodelers, builders, designers, architects and manufacturers can access useful, easy step-by-step best practices anytime, anywhere. Enter any search term to begin exploring building science or finding products. Enter a manufacturer’s name, a brand product name, or a general category of interest-- all will quickly take you to meaningful results and useful information. You will find a list of generic and brand products. Selecting any one of these calls up instructions, product information, and building science resources.

About

Lomanco Vent Tools

Calculate the number of roof vents needed for a balanced attic ventilation system. This app helps determine intake and exhaust options, roof pitch, and soffit panel requirements. It also provides product information and tools for Whirlybird installations.

Highlights
  • Ventilation Calculator
  • Soffit Panel Tool
  • Whirlybird Pitch Tool
  • Product Information
  • Roof pitch calculation
  • Attic ventilation balancing
Features
Read full description

Lomanco Vent Tools gives contractors, installers, and homeowners quick access to practical roof ventilation tools from Lomanco. Use the app to calculate balanced attic ventilation, estimate soffit panel needs, check roof pitch, identify the correct Whirlybird® base pitch, and access Lomanco product information from one convenient place. Lomanco Vent Tools includes: • Vent Calculator Calculate how many Lomanco intake and exhaust vents are needed for a properly balanced attic ventilation system. • Soffit Panel Tool Estimate soffit panel requirements and help diagnose inadequate intake ventilation. • Whirlybird® Pitch Tool Measure roof pitch, determine the correct Whirlybird® base number, and save/share a photo with roof pitch information. • Vent Resources Access Lomanco product information, ventilation resources, support links, and related tools. Whether you are planning a roof ventilation job, checking an existing installation, or working in the field, Lomanco Vent Tools helps keep the information you need close at hand.

Screenshots

Construction Instruction Ci4 screens

Verdict

The call

The clearest difference is rating: Construction Instruction Ci at 4.9 against Lomanco Vent Tools's 4.5. Construction Instruction Ci also leads on ratings volume (60 vs 11). Lomanco Vent Tools's advantage is review sentiment (88% vs 71%) and iOS requirement (15.0 vs 17.2). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Construction Instruction Ci holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Construction Instruction Ci has 60 ratings behind it against 11, so its average is the more settled of the two. Written reviews complicate that: 71% of Construction Instruction Ci's written reviews are positive against 88% of Lomanco Vent Tools's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Construction Instruction Ci ships an update every 3 months, Lomanco Vent Tools every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Construction Instruction Ci versus Lomanco Vent Tools: the parameters behind the verdict, then further details
ParameterConstruction Instruction CiLomanco Vent Tools
PriceFreeFree
Rating4.9 (60 ratings) — better4.5 (11 ratings)
Positive reviews71.4% of reviews87.5% of reviews — better
Number of ratings60 — better11
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.215.0 — better
Further details — not scored
Size7 MB2 MB
Age rating4+4+
DeveloperConstruction Instruction Productions, LLCLomanco, Inc.

Customer experience

Construction Instruction Ci

All ratings58 ratings
Positive96.6%
Neutral0.0%
Negative3.4%
Written reviews35 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

Lomanco Vent Tools

All ratings9 ratings
Positive77.8%
Neutral11.1%
Negative11.1%
Written reviews8 reviews
Positive87.5%
Neutral12.5%
Negative0.0%

In-app purchases

None

Construction Instruction Ci

No in-app purchases

None

Lomanco Vent Tools

No in-app purchases

Questions

Is Construction Instruction Ci free?
Construction Instruction Ci is free to download, with no in-app purchases.
Is Lomanco Vent Tools free?
Lomanco Vent Tools is free to download, with no in-app purchases.
Which has better reviews, Construction Instruction Ci or Lomanco Vent Tools?
Construction Instruction Ci is rated higher. Construction Instruction Ci averages 4.9 out of 5 from 60 ratings, while Lomanco Vent Tools averages 4.5 from 11 ratings.
Do Construction Instruction Ci or Lomanco Vent Tools have ads?
Neither Construction Instruction Ci nor Lomanco Vent Tools shows ads.
Which is updated more often, Construction Instruction Ci or Lomanco Vent Tools?
Construction Instruction Ci ships an update every 3 months, and Lomanco Vent Tools every 2 months. Most recently, Construction Instruction Ci was updated on October 23, 2026 and Lomanco Vent Tools on October 24, 2026.

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