Comparison

Density Altitude + vs Hamilton College Jitney

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

Head to head
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.

About

Hamilton College Jitney

Features
Read full description

Bus route information for the transit service for the Hamilton College Jitney. This app displays real-time information for transit buses with notifications and schedules. Please be advised that the arrival times displayed on the phone app may be delayed as much as 45 seconds behind the exact position of the bus. ::: Compatibility ::: iOS 8.0 or higher is required. ::: Support ::: Please e-mail us at support@peaktransit.com with any issues or questions. ::: Features ::: • Real-time location of the buses • Routes displayed on the map • Bus location-based ETAs • Arrival notifications • View Route Schedules ::: Notes ::: The ETA algorithm that automatically adjusts for seasonal route and schedule changes. However, the app needs 24 hours to refresh these changes within it's memory. Please contact us if you notice any (consistently) odd behavior

Screenshots

Density Altitude +4 screens
Hamilton College Jitney4 screens

Verdict

The call

The clearest difference is price: Hamilton College Jitney at Free against Density Altitude +'s $3.99. Hamilton College Jitney also leads on update cadence (every 2 months vs every 4 months). Density Altitude +'s advantage is chart position (#30 vs unranked) and iOS requirement (13.0 vs 15.1). On ads, in-app purchases and device support 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

Hamilton College Jitney is free to download; Density Altitude + costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Density Altitude + ships an update every 4 months, Hamilton College Jitney every 2 months. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 7 level
Density Altitude + versus Hamilton College Jitney: the parameters behind the verdict, then further details
ParameterDensity Altitude +Hamilton College Jitney
Price$3.99Free — better
Rating4.8 (1K ratings) — better—
Positive reviews87.5% of reviews—
Number of ratings1K — better—
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
Best chart rank#30 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size4 MB44 MB
Age rating4+4+
DeveloperRate Of Climb IndustriesBishop Peak Technology, Inc

Bugs and 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

Hamilton College Jitney

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Density Altitude +

No in-app purchases

None

Hamilton College Jitney

No in-app purchases

Questions

Is Density Altitude + free?
Density Altitude + costs $3.99, with no in-app purchases.
Is Hamilton College Jitney free?
Hamilton College Jitney is free to download, with no in-app purchases.
Do Density Altitude + or Hamilton College Jitney have ads?
Neither Density Altitude + nor Hamilton College Jitney shows ads.
Which is updated more often, Density Altitude + or Hamilton College Jitney?
Density Altitude + ships an update every 4 months, and Hamilton College Jitney every 2 months. Most recently, Density Altitude + was updated on November 1, 2026 and Hamilton College Jitney on October 31, 2026.

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