Comparison

Roof Ventilator vs LeadFetch

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

Head to head
About

Roof Ventilator

This app calculates attic ventilation requirements based on your attic space and intake ventilation net free areas. It helps design ventilation systems to meet building code limits, suggesting vent quantities and types for optimal function. It also allows you to check existing systems and plan modifications.

Highlights
  • Calculates code requirements based on attic size
  • Determines exhaust vent and ridge vent quantities
  • Checks if current ventilation is within code
  • Suggests modifications for code compliance
  • Recommends specific vent types and amounts
  • Work backwards feature for existing systems
  • Evaluates added intake ventilation NFA
Features
Read full description

Our application uses two inputs (one required): Attic Space Net Free Area and Intake Ventilation Net Free Area. You will have to calculate those two inputs on your own. Once the calculations are complete, enter the inputs into the application and find instant pertinent information calculated by our application that helps design your ventilation system to be within building code limits. Roof attic vent calculator Provides: -All code requirements per your attic space size based on the range of 1/300-1/150 -How many exhaust vents, or linear footage ridge vent need to be installed to be within code range and function; take a screenshot and print! We even used a white background as not to waste printer ink. -Lets you know if your current ventilation system is within code range -The amount of needed changes you need to get within code range -Amounts (pieces or linear feet) of different types of products (rvo-38,AF-50, multiple ridge vents, birdholes, soffit vents, roof top intake strip vent) required to achieve balance of Intake Net Free Area and Exhaust Net Free Area, as well as notifications as to whether or not your system will function. -Complete with a work backwards section that allows your roofers, or you, to enter the current amount of vents and notify you if it is within building code range and has enough Intake net free area. - Has a modified ventilation system section, "New Total NFA," that tells you if your additional added Intake NFA fits within the building code range and subsequently provides you with the needed ventilation products and the amount required to provide a functional system. A full subscription is required to access the calculator, all subscriptions come with a 7-day free trial. Please review the terms of use (EULA) at http://roofventilatorapp.com/terms-of-use and view our privacy policy here: https://roofventilatorapp.com/privacy-policy

About

LeadFetch

Features
Read full description

LeadFetch is the HVAC industry's #1 dedicated Sales Maximization Platform, helping residential and commercial owners close more sales and turn leads into lifelong customers. This easy-to-use app powers your lead management, automated follow-ups, sales, and customer service—all in one place. Run your day-to-day lead management and sales operations from anywhere and watch your sales revenue increase with impressive, streamlined customer interactions. - Turn existing customers and "dead leads" into new sales with the tap of a button - Quickly grow your customer list with our integrated, multi-channel lead generation system - Impress your leads and close more sales with our automated follow-up system - Multiply your customers with custom "Word of Mouth" campaigns - Stay busy during your slowest seasons without spending money on advertising - Gather more 5-Star Customer Reviews to attract more leads and boost your Google rankings Manage, track, and communicate with your leads and customers across all channels... all in one easy-to-use desktop and mobile app!

Screenshots

Roof Ventilator1 screens
LeadFetch4 screens

Verdict

The call

The clearest difference is in-app purchases: LeadFetch at none against Roof Ventilator's 2. LeadFetch also leads on update cadence (every 4 months vs every 50 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. Roof Ventilator sells 2 in-app purchases, starting at $8.99 per month. LeadFetch asks for nothing beyond the download.

UpkeepUpdate frequency

Roof Ventilator ships an update every 50 months, LeadFetch every 4 months. The most recent releases landed on June 10, 2026 and September 19, 2026 respectively.

Scorecard2 real differences · 8 level
Roof Ventilator versus LeadFetch: the parameters behind the verdict, then further details
ParameterRoof VentilatorLeadFetch
PriceFreeFree
Rating4.3 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 50 monthsEvery 4 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better16.6
Further details — not scored
Size47 MB340 MB
Age rating4+4+
DeveloperGRANARACO LLCGrowthLab Media, LLC

In-app purchases

2 purchases

Roof Ventilator

Subscriptions2
  • Monthly Subscription7 Days trial$8.991 Month
  • Roof Ventilator Annual7 Days trial$34.991 Year
None

LeadFetch

No in-app purchases

Questions

Is Roof Ventilator free?
Roof Ventilator is free to download, with in-app purchases available.
Is LeadFetch free?
LeadFetch is free to download, with no in-app purchases.
Do Roof Ventilator or LeadFetch have ads?
Neither Roof Ventilator nor LeadFetch shows ads.
Which is updated more often, Roof Ventilator or LeadFetch?
Roof Ventilator ships an update every 50 months, and LeadFetch every 4 months. Most recently, Roof Ventilator was updated on June 10, 2026 and LeadFetch on September 19, 2026.

Other comparisons