Density Altitude + vs Hamilton College Jitney
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Density Altitude calculation
- Relative Air Density (RAD)
- Altimeter setting
- Humidity calculations
- GPS and barometer integration
- Location search
- Offline functionality
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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.
Hamilton College Jitney
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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
Verdict
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
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.
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.
| Parameter | Density Altitude + | Hamilton College Jitney |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.8 (1K ratings) — better | — |
| Positive reviews | 87.5% of reviews | — |
| Number of ratings | 1K — better | — |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | #30 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 4 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Rate Of Climb Industries | Bishop 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
Density Altitude +
No in-app purchases
Hamilton College Jitney
No in-app purchases
Questions
Is Density Altitude + free?
Is Hamilton College Jitney free?
Do Density Altitude + or Hamilton College Jitney have ads?
Which is updated more often, Density Altitude + or Hamilton College Jitney?
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