Comparison

World Flip vs Density Altitude +

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

World Flip

Discover what lies on the opposite side of the globe from your current or a chosen location. This app displays precise latitude and longitude coordinates for both points and visualizes them on a map.

Highlights
  • View opposite side of the world
  • Display latitude and longitude
  • Map visualization of locations
  • Current location tracking
  • Selected location input
Features
Read full description

‘World Flip’ is an app designed to enable you to view what is on the exact opposite side of the world from either your current location or a selected location. World Flip will provide both the Latitude and Longitude for both your current location or selected location and the exact opposite side of the world Latitude and Longitude from either your current location or selected location along with a map showing both locations on the same screen. So next time you or someone wants to know what is on the other side of the world you will easily be able to see for yourself.

About

Density Altitude +

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
Currently charting
Read full description

Instant and location accurate Density Altitude calculator/instrument app for iPhone and iPad that also finds relative air density (RAD), altimeter setting, relative humidity, specific humidity (grains/lb) and more. Super useful for pilots, especially in the backcountry. Many other uses for engine tuning, racing, sports, etc. * Seamlessly integrates weather data, GPS and your phone's onboard barometer to quickly and accurately calculate your density altitude, altimeter setting, relative air density, and more. * Takes humidity into account in all calculations, making it more accurate than the typical dry bulb approximation formula used by AWOS/ASOS, etc. * Works anywhere. Great without cellular connection as well, which makes it all the more useful in the backcountry and far away from ASOS/AWOS stations. * Location Search: Find atmospheric data (Density Altitude, etc.) at any point on Earth, from anywhere! Data Sensed and Calculated (all calculated with humidity): * Density Altitude * GPS Altitude * Temperature * Altimeter Setting * Absolute Pressure * Dew Point * Relative Humidity * Specific Humidity (grains/pound) * Air Density * Relative Air Density (RAD) * Dyno Correction The quickest way to get your Density Altitude! On the iPhone 6/6+ and newer iPads, it will use the built-in barometer and GPS. If you're in cell range, you don't need to supply any data. If you're out of cell range, all you need to supply is the outside air temperature. Designed not to need an internet connection, so it will work anytime and anywhere you need it. Great tool for pilots, drag racers, engine tuners, golfers, or anyone who needs to conveniently find their Density Altitude, Altimeter Setting, Relative Aid Density (RAD), Specific Humidity or Absolute Pressure. No ads or in-app purchases. We love feedback! Email us at densityaltitude@rateofclimb.com Disclaimer: Density Altitude+ uses available third party weather and elevation data to calculate atmospheric measurements, but Rate Of Climb does not guarantee that the original sources (including the National Weather Service, FAA and others) have provided data that is accurate, complete, timely, or properly formatted. Users should always contact official sources for the most accurate and timely updates. The service is not intended for use in situations in which the failure of the service could lead to death, personal injury, or severe physical or environmental damage. Your use of this application is at your sole risk.

Screenshots

World Flip4 screens
Density Altitude +4 screens

Verdict

The call

The clearest difference is rating: Density Altitude + at 4.8 against World Flip's 1.0. Density Altitude + also leads on ratings volume (1K vs 1) and update cadence (every 4 months vs every 10 months). World Flip's advantage is price ($0.99 vs $3.99). On ads, in-app purchases, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

World Flip costs $0.99 and Density Altitude + $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Density Altitude + holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Density Altitude + has 1K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

World Flip ships an update every 10 months, Density Altitude + every 4 months. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

Scorecard6 real differences · 5 level
World Flip versus Density Altitude +: the parameters behind the verdict, then further details
ParameterWorld FlipDensity Altitude +
Price$0.99 — better$3.99
Rating1.0 (1 ratings)4.8 (1K ratings) — better
Positive reviews—87.5% of reviews
Number of ratings11K — better
Update frequencyEvery 10 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank—#35 — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better13.0
Further details — not scored
Size3 MB4 MB
Age rating4+4+
DeveloperStealth Productions LimitedRate Of Climb Industries

Customer experience

World Flip

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

Density Altitude +

All ratings1,028 ratings
Positive97.3%
Neutral1.6%
Negative1.2%
Written reviews24 reviews
Positive87.5%
Neutral4.2%
Negative8.3%

Bugs and requests

World Flip

Not enough reviews yet to summarise bugs or requests.

Density Altitude +

Reported bugs

2 issues
  • GPS elevation doesn't always update reliably
  • No way to set altitude

Requested features

4 requests
  • Apple Watch Widget
  • Barometric pressure
  • Relative humidity for current location
  • Ability to manually enter values

In-app purchases

None

World Flip

No in-app purchases

None

Density Altitude +

No in-app purchases

Questions

Is World Flip free?
World Flip costs $0.99, with no in-app purchases.
Is Density Altitude + free?
Density Altitude + costs $3.99, with no in-app purchases.
Which has better reviews, World Flip or Density Altitude +?
Density Altitude + is rated higher. World Flip averages 1.0 out of 5 from 1 ratings, while Density Altitude + averages 4.8 from 1K ratings.
Do World Flip or Density Altitude + have ads?
Neither World Flip nor Density Altitude + shows ads.
Which is updated more often, World Flip or Density Altitude +?
World Flip ships an update every 10 months, and Density Altitude + every 4 months. Most recently, World Flip was updated on October 6, 2026 and Density Altitude + on October 16, 2026.

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