Comparison

Roofing Ventilation Calculator vs Par Order

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

Head to head
About

Roofing Ventilation Calculator

Calculate the necessary amount of ventilation products for an attic space. Input attic dimensions or square footage to receive results based on the NFA 1/300 rule for balanced ventilation.

Highlights
  • Attic dimension input
  • Square footage input
  • NFA 1/300 rule calculation
  • Ventilation product quantity determination
  • Balanced ventilation planning
Features
Read full description

The Ventilation Calculator from CertainTeed is the ideal tool for quickly determining the amount of ventilation products needed to outfit an attic space with proper balanced ventilation. Simply enter the length and width of the attic space or the overall square footage of the space and the Ventilation Calculator produces results based upon the NFA 1/300 rule.

About

Par Order

Read full description

Food Count – The Swift Inventory & Par Tracker Food Count makes it simple to track on-hand stock, incoming orders, and daily pars — all in one clean, local app. No logins. No cloud. No data leaves your device. WHAT DOES IT DO? Counts Inventory Fast: Tap +1 or –1 on any item to increment or decrement quantities Import Excel spreadsheet for par quantities Set Daily Pars: Once you set a par Food Count remembers, reducing the need for repetition. Project Order Quantities: See exactly what to order based on par vs. on-hand and incoming. Doesn't Store Personal Information: Nothing is tracked, shared, or uploaded. BUILT FOR: - Café managers - Kitchen leads - Shift supervisors - Small teams who count by hand SAMPLE ITEMS Bacon Gouda, Chocolate Croissant, Pumpkin Muffin, Turkey Bacon, Ham & Swiss, Iced Lemon Loaf, Blueberry Scone, Spinach Feta Wrap, and 100+ more — all editable. NO NEED FOR ALL THE EXTRA STUFF: No ads No analytics No accounts No internet required

Screenshots

Roofing Ventilation Calculator4 screens
Par Order4 screens

Verdict

The call

The clearest difference is update cadence: Par Order at every 9 days against Roofing Ventilation Calculator's every 3 months. Roofing Ventilation Calculator's advantage is iOS requirement (13.0 vs 17.6). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Roofing Ventilation Calculator ships an update every 3 months, Par Order every 9 days. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 8 level
Roofing Ventilation Calculator versus Par Order: the parameters behind the verdict, then further details
ParameterRoofing Ventilation CalculatorPar Order
PriceFreeFree
Rating3.0 (6 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size34 MB0 MB
Age rating4+4+
DeveloperCompagnie de Saint-GobainCarlos Rodriguez

In-app purchases

None

Roofing Ventilation Calculator

No in-app purchases

None

Par Order

No in-app purchases

Questions

Is Roofing Ventilation Calculator free?
Roofing Ventilation Calculator is free to download, with no in-app purchases.
Is Par Order free?
Par Order is free to download, with no in-app purchases.
Do Roofing Ventilation Calculator or Par Order have ads?
Neither Roofing Ventilation Calculator nor Par Order shows ads.
Which is updated more often, Roofing Ventilation Calculator or Par Order?
Roofing Ventilation Calculator ships an update every 3 months, and Par Order every 9 days. Most recently, Roofing Ventilation Calculator was updated on October 3, 2026 and Par Order on October 10, 2026.

Other comparisons