Air Flow Conversion Calculator vs EQ TRACKER
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Air Flow Conversion Calculator
Easily calculate air velocity and airflow volume for various duct types. Input dimensions and units, and get instant results for HVAC and ventilation applications.
- Calculate air velocity and airflow volume
- Support for circular and rectangular ducts
- Multiple unit options for velocity, volume, and dimensions
- Instant result display
- Useful for HVAC and ventilation
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Air Flow Conversion Calculator calculate the rate of displacement of air or gas at a specific location. - Enter the air velocity or volume airflow. - Choose circular or rectangular duct and type the required dimension(s), then select the appropriate units. - Result will be displayed instantly. Airflow Value:- Velocity Units: -fl/min (LFM) -m/s -miles/hr (MPH) Volume Airflow Units: -ft3/min (CFM) -m3/hr -L/s Dimension Units: -in -foot -mm -cm -m Air velocity (distance traveled per unit of time) is usually expressed in Linear Feet per Minute (LFM). By multiplying air velocity by the cross section area of a duct, you can determine the air volume flowing past a point in the duct per unit of time. Volume flow is usually measured in Cubic Feet per Minute (CFM). Example Concept of Air Velocity can be used in air conditioning, heating and ventilating work. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
EQ TRACKER
Easily track the location and maintenance history of all your equipment. Organize machines into categories, schedule repairs, and export detailed maintenance reports. Collaborate with team members to manage your assets efficiently.
- Track machine location with check-ins
- Categorize machines and parts
- Schedule maintenance and repairs
- View machine maintenance history
- Export maintenance reports (PDF)
- Collaborate with group members
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EQ TRACKER! The easiest way to track location and maintenance for ALL of your machines! EQ TRACKER allows you to: * Track the location of your machines with a simple check-in * Create categories to manage your machines and parts * Schedule maintenance and repairs * See a list of your machines that includes the location of each * Easily view machines on the map * See a list of your maintenance and repairs * View each machine’s maintenance history * Export a PDF of your machine’s maintenance history * Export a list of parts or individual part names and numbers * Create a group and invite members to track your machines and perform maintenance To use EQ TRACKER: 1. Enter your machines and machine details 2. Do an initial check-in to put your machines on the map 3. Enter your maintenance parts (your maintenance is automatically scheduled) 4. Enter repair items as needed, you can quickly schedule a repair 5. Complete maintenance or repair according to the schedule 6. See the completed maintenance in your machine’s history 7. Export maintenance history for one or more machines 8. Share needed parts and part numbers via email or text …etc (using the phone’s system dialogue)
Screenshots
Verdict
The clearest difference is price: EQ TRACKER at Free against Air Flow Conversion Calculator's $2.99. EQ TRACKER also leads on update cadence (every 5 months vs every 47 months). Air Flow Conversion Calculator's advantage is rating (3.5 vs 3.3). On review sentiment, ratings volume, 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
EQ TRACKER is free to download; Air Flow Conversion Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Air Flow Conversion Calculator holds the better App Store score, 3.5 against 3.3. Both are backed by a comparable volume of ratings — 11 and 7 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
Air Flow Conversion Calculator ships an update every 47 months, EQ TRACKER every 5 months. The most recent releases landed on September 18, 2026 and June 10, 2026 respectively.
| Parameter | Air Flow Conversion Calculator | EQ TRACKER |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.5 (11 ratings) — better | 3.3 (7 ratings) |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 11 — better | 7 |
| Update frequency | Every 47 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 8 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Nitrio | DIGNDIRT LC |
Customer experience
Air Flow Conversion Calculator
EQ TRACKER
In-app purchases
Air Flow Conversion Calculator
No in-app purchases
EQ TRACKER
No in-app purchases
Questions
Is Air Flow Conversion Calculator free?
Is EQ TRACKER free?
Which has better reviews, Air Flow Conversion Calculator or EQ TRACKER?
Do Air Flow Conversion Calculator or EQ TRACKER have ads?
Which is updated more often, Air Flow Conversion Calculator or EQ TRACKER?
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