Comparison

Torr vs Elevation Map

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

Head to head
About

Torr

This app provides real-time barometric pressure and altitude readings, along with 10-day forecasts and migraine alerts. It automatically logs historical data and allows for CSV export, functioning offline and on Apple Watch. It's useful for outdoor activities, weather observation, and managing weather-sensitive conditions.

Highlights
  • Real-time barometer and altimeter
  • 10-day pressure and weather forecasts
  • Migraine and weather sensitivity alerts
  • Automatic history logging and CSV export
  • Offline functionality
  • Apple Watch support
  • Multiple altitude sources
Features
Read full description

Free barometer & altimeter — real-time pressure, altitude, 10-day forecasts with migraine alerts, automatic history logging, and CSV export all in one app. The dashboard displays high-precision real-time measurement data, offering peace of mind for mountaineering enthusiasts and outdoor adventurers. It uses your device's built-in barometric pressure sensor, motion sensor, and GPS, allowing offline use. It also features real-time trend graphs, making it ideal for observing short-term changes during typhoon approaches, sudden downpours, stair/elevator ascents/descents, or driving uphill. The altimeter lets you simultaneously view readings from three sources—sensor, GPS, and QNH (sea-level corrected pressure)—plus a calibrated value matched to a known elevation such as a trailhead. Each altitude is displayed visually on an arch gauge, and you can tap each source to learn about its characteristics and accuracy. Since barometric pressure and altitude support various units, it can also be used for professional purposes by researchers and academic institutions. Additionally, for those sensitive to weather changes and suffering from migraines or weather-related illnesses, it provides graphs forecasting barometric pressure and weather for the next 10 days, along with medically grounded headache alert information updated every 6 hours. Its graphical, intuitive UI runs smoothly, making it a valuable tool for daily prevention and countermeasures. Furthermore, measured barometric pressure data is automatically stored within the app. It features a background measurement mode that enables measurements even when the app is in the background or asleep. You can view accumulated data and export it to CSV files. It also supports Live Activities in the background, allowing you to view real-time data on Dynamic Island or the lock screen. Beyond the main app, it also works with Apple Watch, letting you instantly check barometric pressure and altitude. An all-in-one, high-performance barometer app covering all present, future, and past information related to barometric pressure. The one-of-a-kind app you never knew you needed—that's "Torr"!! 【Features】 ・Dashboard  ・Barometer (Atmospheric pressure data via pressure sensor)  ・Altimeter — View altitudes from 4 sources on arch gauges   ・Sensor Altitude (absolute altitude from the barometric sensor)   ・GPS Altitude (elevation above sea level via satellite positioning)   ・QNH Altitude (sea-level corrected barometric altitude)   ・Calibrated Altitude (calibration matched to a known elevation) ・Pressure Forecast  ・Up to 10 days of nearby sea-level pressure values and weather forecasts  ・Pressure graph showing trends like rises and falls  ・6-hourly migraine/weather sensitivity alerts based on medical evidence ・History  ・Automatic data logging  ・Daily history export to CSV files  ・Background measurement mode ・Unit settings — 7 pressure units including Torr, hPa, kPa, mBar, psi, inHg, mmHg ・Color theme settings ・Torr Pro plan for ad-free experience ・Apple Watch compatibility ・Lock screen widget ・Live Activity 【Other】 Some devices may not have a barometric pressure sensor or motion sensor. Please note that in such cases, certain dashboard features may not be available. Location access and an internet connection are required to use the barometric pressure forecast. Location access is required for background measurement. Please submit requests or inquiries via reviews or the support URL.

About

Elevation Map

This app calculates air pressure, temperature, and oxygen levels based on altitude, and provides mountain weather forecasts. It simulates the oxygen-hemoglobin dissociation curve to help users understand blood oxygen saturation at different heights. Access global elevation data and visualize it with a color map.

Highlights
  • Altitude-based air pressure and temperature calculation
  • Oxygen content and partial pressure prediction
  • Blood oxygen saturation simulation
  • Global elevation data query
  • Mountain weather forecasts
  • Elevation color map visualization
Features
Read full description

As the altitude increases, the air becomes thinner, the temperature decreases, the air pressure decreases, the boiling point of water decreases, the oxygen content in the air decreases, and the oxygen partial pressure decreases. When we climb higher mountains or go to high altitude areas, this knowledge is what we need to know. Elevation Map-Mountain Weather app uses the relationship between altitude and air pressure, air temperature, and oxygen, and uses altitude to calculate air pressure, air temperature, and oxygen or calculate altitude by air pressure. At last, the app provide mountain weather forecast for 7178 mountains in the world. According to the oxygen-hemoglobin dissociation curve, healthy people can maintain normal blood oxygen saturation at an altitude of 3000 meters or even 4000 meters and 5000 meters. However, when the pH drops, the body temperature rises or other reasons will reduce the oxygen affinity, the blood oxygen saturation will drop to an abnormal range at this altitude, causing hypoxia. The app simulates the dissociation curve to help users analyze the influence of body temperature and PH on blood oxygen saturation, and predict blood oxygen saturation at different altitudes. The Elevation Map-Mountain Weather app provides global elevation data, which can be queried on the map or by input longitude and latitude value. Under the query results, you can set the sea level temperature and air pressure to calculate the air pressure, air temperature, boiling point, oxygen content, oxygen partial pressure, and blood oxygen saturation at the elevation. An elevation color map is also provided to visualize global elevation distribution. The Elevation Map-Mountain Weather app is divided into the following five parts: 1. Current: Combining GPS, device barometer, and real-time weather at the current location, get the current location's altitude, air pressure, water boiling point, oxygen content and blood oxygen. 2. Map: Move the map to get the elevation of any location, and calculate the air pressure, air temperature, boiling point, oxygen content, blood oxygen of the location given the sea level air pressure temperature combined with the altitude 3. Tools: The tool part mainly has 6 functions: 1. Elevation search 2. Altitude list 3. Altitude calculate 4. Oxygen-hemoglobin dissociation curve 5. Blood oxygen log 6. Elevation Color Map 4. Mountain Favorite mountain and mountain weather forecast at different elevation。 Disclaimer:(Mountain weather forecast) This application is not dedicated to predicting various sudden weather disasters in mountainous areas. It mainly informs about meteorological factors that always exist and change with altitude, such as temperature, air pressure, humidity, oxygen content, etc. IN NO EVENT SHALL THE APP BE LIABLE FOR ANY CONSEQUENTIAL, SPECIAL, LOST PROFITS, INDIRECT OR OTHER DAMAGES. When conducting such activities, please choose a more accurate, more specific, and more comprehensive forecast plan 5. Settings 【Pro】 1.Mountain weather forecast 2.unlock all tools Purchase rules: [Month Pro] Purchase a monthly member for $ 2.99 / month and renew it automatically every month. [Annual Pro] 19.99 $ / year to purchase annual annual membership and automatically renew it annually. Purchase Notes: 1. The account will be automatically renewed and deducted the corresponding fee 1 day before the expiration. 2. If you need to cancel the renewal, please cancel in your personal iTunes account at least 1 day in advance. 3. After purchase, users can manage or turn off automatic renewal in personal account settings. Terms of Services : https://www.astronomyobserver.net/h5/elevation/user/en Privacy policy: https://www.astronomyobserver.net/h5/elevation/privacy/en

Screenshots

Torr4 screens
Elevation Map4 screens

Verdict

The call

The clearest difference is ads: Elevation Map at none against Torr's shown. Elevation Map also leads on rating (4.7 vs 4.4) and review sentiment (67% vs 56%). Torr's advantage is update cadence (weekly vs every 6 weeks) and ratings volume (178 vs 23). On price, in-app purchases, monetization model 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

Both are free to download. Torr sells 2 in-app purchases, starting at $1.99 per month and Elevation Map sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Elevation Map holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Torr has 178 ratings behind it against 23, so its average is the more settled of the two. Written reviews point the same way: 56% of Torr's written reviews are positive against 67% of Elevation Map's.

UpkeepUpdate frequency

Torr ships an update weekly, Elevation Map every 6 weeks. The most recent releases landed on September 25, 2026 and September 14, 2026 respectively.

Scorecard5 real differences · 5 level
Torr versus Elevation Map: the parameters behind the verdict, then further details
ParameterTorrElevation Map
PriceFreeFree
Rating4.4 (178 ratings)4.7 (23 ratings) — better
Positive reviews56.1% of reviews66.7% of reviews — better
Number of ratings178 — better23
Update frequencyWeekly — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size17 MB50 MB
Age rating4+4+
DeveloperSoyApps雪平 王

Customer experience

Torr

All ratings178 ratings
Positive84.8%
Neutral4.5%
Negative10.7%
Written reviews66 reviews
Positive56.1%
Neutral12.1%
Negative31.8%

Elevation Map

All ratings23 ratings
Positive91.3%
Neutral8.7%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

2 purchases

Torr

Subscriptions2
  • Pro (Monthly)7 Days trial$1.991 Month
  • Pro (Yearly)$19.991 Year
3 purchases

Elevation Map

Subscriptions2
  • Month Pro$2.991 Month
  • Annual Pro$19.991 Year
One-time1
  • Lifetime Pro$49.99

Questions

Is Torr free?
Torr is free to download, with in-app purchases available.
Is Elevation Map free?
Elevation Map is free to download, with in-app purchases available.
Which has better reviews, Torr or Elevation Map?
Elevation Map is rated higher. Torr averages 4.4 out of 5 from 178 ratings, while Elevation Map averages 4.7 from 23 ratings.
Do Torr or Elevation Map have ads?
Torr shows ads; Elevation Map does not.
Which is updated more often, Torr or Elevation Map?
Torr ships an update weekly, and Elevation Map every 6 weeks. Most recently, Torr was updated on September 25, 2026 and Elevation Map on September 14, 2026.

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