# Air Flow Conversion Calculator vs EQ TRACKER

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.

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.

## The numbers

| Metric | Air Flow Conversion Calculator | EQ TRACKER |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.5 (11 ratings)](https://appshunter.io/ios/app/air-flow-conversion-calculator/id1375810553/reviews)** | [3.3 (7 ratings)](https://appshunter.io/ios/app/eq-tracker/id1446960229/reviews) |
| Number of ratings | **11** | 7 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 47 months | **Every 5 months** |
| Monetization | Paid | **Free** |
| Size | 8 MB | 63 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [DIGNDIRT LC](https://appshunter.io/developer/1423654382) |

## What reviewers say

### Air Flow Conversion Calculator

[App page](https://appshunter.io/ios/app/air-flow-conversion-calculator/id1375810553)

Easily calculate air velocity and airflow volume for various duct types. Input dimensions and units, and get instant results for HVAC and ventilation applications.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### EQ TRACKER

[App page](https://appshunter.io/ios/app/eq-tracker/id1446960229)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Air Flow Conversion Calculator free?

Air Flow Conversion Calculator costs $2.99, with no in-app purchases.

### Is EQ TRACKER free?

EQ TRACKER is free to download, with no in-app purchases.

### Which has better reviews, Air Flow Conversion Calculator or EQ TRACKER?

Air Flow Conversion Calculator is rated higher. Air Flow Conversion Calculator averages 3.5 out of 5 from 11 ratings, while EQ TRACKER averages 3.3 from 7 ratings.

### Do Air Flow Conversion Calculator or EQ TRACKER have ads?

Neither Air Flow Conversion Calculator nor EQ TRACKER shows ads.

### Which is updated more often, Air Flow Conversion Calculator or EQ TRACKER?

Air Flow Conversion Calculator ships an update every 47 months, and EQ TRACKER every 5 months. Most recently, Air Flow Conversion Calculator was updated on September 18, 2026 and EQ TRACKER on June 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*