Roofing Ventilation Calculator vs Par Order
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Attic dimension input
- Square footage input
- NFA 1/300 rule calculation
- Ventilation product quantity determination
- Balanced ventilation planning
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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.
Par Order
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | Roofing Ventilation Calculator | Par Order |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (6 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 3 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 34 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Compagnie de Saint-Gobain | Carlos Rodriguez |
In-app purchases
Roofing Ventilation Calculator
No in-app purchases
Par Order
No in-app purchases
Questions
Is Roofing Ventilation Calculator free?
Is Par Order free?
Do Roofing Ventilation Calculator or Par Order have ads?
Which is updated more often, Roofing Ventilation Calculator or Par Order?
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