# BMSNav vs Quick DA

The clearest difference is price: BMSNav at Free against Quick DA's $2.99. BMSNav also leads on iOS requirement (13.4 vs 17.6). Quick DA's advantage is update cadence (every 2 months vs every 6 months) and chart position (#175 vs unranked). On ads, in-app purchases and device support there is nothing between them.

BMSNav is free to download; Quick DA costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BMSNav ships an update every 6 months, Quick DA every 2 months. The most recent releases landed on September 11, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | BMSNav | Quick DA |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/quick-da/id6762684582/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | — | Paid |
| Best chart rank | — | **#175** |
| Size | 26 MB | 2 MB |
| Requires iOS | **13.4** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sean Eidemiller](https://appshunter.io/developer/1727805379) | [James Watts](https://appshunter.io/developer/1894961747) |

## What reviewers say

### BMSNav

[App page](https://appshunter.io/ios/app/bmsnav/id6476798982)

**Features:** macOS Compatibility

**In-app purchases:** none


### Quick DA

[App page](https://appshunter.io/ios/app/quick-da/id6762684582)

**Currently charting:** #175 Top Paid · Utilities (US App Store)

Calculate density altitude using onboard sensors and user inputs. Store and edit past calculations in a data log. Supports various input methods and map views for precise environmental data.

**Highlights:** Density Altitude calculation, Data Log for storing calculations, GPS and Barometric Pressure Sensor integration, Weather station data for temperature and humidity, Map screen for elevation selection, Multiple input options for pressure, Unit selection (Feet/Meters, Fahrenheit/Celsius)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BMSNav free?

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

### Is Quick DA free?

Quick DA costs $2.99, with no in-app purchases.

### Do BMSNav or Quick DA have ads?

Neither BMSNav nor Quick DA shows ads.

### Which is updated more often, BMSNav or Quick DA?

BMSNav ships an update every 6 months, and Quick DA every 2 months. Most recently, BMSNav was updated on September 11, 2026 and Quick DA on September 15, 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.*