# Density Altitude + vs SkyTimer

The clearest difference is price: SkyTimer at Free against Density Altitude +'s $3.99. SkyTimer also leads on update cadence (fortnightly vs every 4 months). Density Altitude +'s advantage is rating (4.8 vs 4.0) and in-app purchases (none vs 2). On ads and device support there is nothing between them.

SkyTimer is free to download; Density Altitude + costs $3.99 up front. SkyTimer sells 2 in-app purchases, starting at $2.49 per month. Density Altitude + asks for nothing beyond the download.

Density Altitude + holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Density Altitude + has 1K ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 88% of Density Altitude +'s written reviews are positive against 54% of SkyTimer's.

Density Altitude + ships an update every 4 months, SkyTimer fortnightly. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Density Altitude + | SkyTimer |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.8 (1K ratings)](https://appshunter.io/ios/app/density-altitude-plus/id994402197/reviews)** | [4.0 (22 ratings)](https://appshunter.io/ios/app/skytimer/id1521776101/reviews) |
| Number of ratings | **1K** | 22 |
| Positive reviews | **87.5% of reviews** | 53.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Best chart rank | **#31** | — |
| Size | 4 MB | 149 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Rate Of Climb Industries](https://appshunter.io/developer/528748185) | [Framework Learning, LLC](https://appshunter.io/developer/1435740981) |

## What reviewers say

### Density Altitude +

[App page](https://appshunter.io/ios/app/density-altitude-plus/id994402197)

**Currently charting:** #31 Top Paid · Navigation (US App Store)

This app calculates density altitude and other atmospheric data using location, GPS, and onboard sensors. It's accurate even without a cellular connection and useful for pilots, racers, and sports enthusiasts.

**Highlights:** Density Altitude calculation, Relative Air Density (RAD), Altimeter setting, Humidity calculations, GPS and barometer integration, Location search, Offline functionality

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Great app for simplicity and ease of use
- 🔒 No data collected from the app
- 👍 Accurate and consistent
- 👍 Excellent for car racing
- 👍 Provides increased satellite accuracy

**What reviewers complain about**

- 🐛 GPS elevation doesn't always update reliably
- 🔧 Can't manually change location

**Reported bugs**

- GPS elevation doesn't always update reliably
- No way to set altitude

**Requested features**

- Apple Watch Widget
- Barometric pressure
- Relative humidity for current location
- Ability to manually enter values


### SkyTimer

[App page](https://appshunter.io/ios/app/skytimer/id1521776101)

This app automatically logs flights, tracks fuel burn, and manages tank levels in real-time from your wrist, phone, or iPad. It provides detailed flight logs and can export data, acting as a cockpit companion for pilots.

**Highlights:** Automatic flight logging, Real-time fuel tracking, Multi-tank and engine support, Worldwide airport database, Smart fuel balancing, Detailed flight logs, Cross-device sync

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plus Subscription | $2.49 | per month |
| Annual Plus Subscription | $17.99 | per year |


## Frequently asked questions

### Is Density Altitude + free?

Density Altitude + costs $3.99, with no in-app purchases.

### Is SkyTimer free?

SkyTimer is free to download, with in-app purchases available.

### Which has better reviews, Density Altitude + or SkyTimer?

Density Altitude + is rated higher. Density Altitude + averages 4.8 out of 5 from 1K ratings, while SkyTimer averages 4.0 from 22 ratings.

### Do Density Altitude + or SkyTimer have ads?

Neither Density Altitude + nor SkyTimer shows ads.

### Which is updated more often, Density Altitude + or SkyTimer?

Density Altitude + ships an update every 4 months, and SkyTimer fortnightly. Most recently, Density Altitude + was updated on October 16, 2026 and SkyTimer on October 7, 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.*