Comparison

Celsius Thermometer Plus vs My Barometer and Altimeter

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

Head to head
About

Celsius Thermometer Plus

This app measures ambient temperature using GPS and displays it in Celsius, with a converter to Fahrenheit. It also includes a barometer and sunrise/sunset times. Useful for checking outdoor conditions and planning outfits.

Highlights
  • Ambient temperature measurement via GPS
  • Celsius to Fahrenheit conversion calculator
  • Barometric pressure sensor function
  • Sunrise and sunset time display
  • Temperature badge indicator
Features
Read full description

The simple free digital thermometer application that measures the ambient temperature of the current location measured by GPS and displays it in degrees Celsius. The conversion calculator from Celsius to Fahrenheit with formula. Celsius temperature is indicated in the badge (below zero is 1000, 1005 is -5 ℃). Barometric function by pressure sensor (iPhone 6 / Plus or later). Because it is outdoor temperature rather than indoor temperature, it is a reference for outfit clothes. Some areas are excluded. Displays sunrise time and sunset time.

About

My Barometer and Altimeter

This app provides real-time atmospheric pressure readings, elevation data, and comprehensive weather forecasts. It offers advanced features like pressure trend monitoring, customizable alerts, and a global pressure map for detailed analysis and planning.

Highlights
  • Instant Mean Sea Level Pressure
  • Ground Level Pressure
  • Advanced Pressure Forecasting
  • Monitor Pressure Trends
  • Comprehensive Weather Forecast
  • Precise Elevation Display
  • Interactive Pressure Map
Features
Read full description

Check current pressure, elevation or weather conditions as fast as possible. - Instant Mean Sea Level Pressure: Stay informed with real-time MSL pressure display, ensuring high accuracy for your altitude and weather needs. - Ground Level Pressure at Your Fingertips: Easily check the ground level pressure, a crucial tool for accurate weather prediction and barometric analysis. - Advanced Pressure Forecasting: Plan ahead with our detailed pressure forecasts, offering a glimpse into upcoming weather conditions. - Monitor Pressure Trends: Keep track of barometric changes and understand weather patterns better with our intuitive pressure trend feature. - Comprehensive Weather Forecast: Stay ahead with the latest weather updates, including current temperature and conditions, right at your fingertips. - Precise Elevation Display: Know your exact altitude with the current elevation display, enhanced with GPS technology for superior accuracy. - Dual Elevation Options: Choose between average and barometric elevation for tailored altitude information. - Calibrate for Accuracy: Fine-tune your barometric elevation readings with our easy calibration option, ensuring you get the most precise data. - Versatile Pressure Units: Customize your experience by selecting from multiple pressure units to suit your preference. - Interactive Pressure Map: Explore pressure and weather data from any location worldwide with our dynamic map feature. - Manual Historic Data Logging: Take control of your data with manual historic data saving, perfect for specific monitoring needs. - Automatic Data Archiving: Set up automatic historic data saving at specific intervals, ensuring you never miss important weather and pressure changes. - Timely Notifications: Receive time-based alerts with the latest pressure information, keeping you informed and prepared. - Pressure Level Alerts: Get notified when pressure levels exceed your pre-set thresholds, perfect for weather enthusiasts and professionals. - Rich Historic Data Access: Dive into various historic data, including MSL and ground pressure, temperature, and elevation, for a comprehensive view of past conditions. - Customizable Data Filters: Easily sift through historic data with filters to view information from specific time periods. - On-the-Go Manual Calibration: Maintain accuracy wherever you are with the manual pressure calibration feature. Our app comes with a brand new application for Apple Watch. There is current ground and MSL pressure available, you can also quickly check your current altitude and weather conditions. Two separate barometer screens - the first one shows pressure at mean sea level, which is what weather stations report; the second one is pressure at ground level at your current position. Devices with built-in sensors will get values from it and for those without sensors, the pressure value is reported by the nearest weather station. You can save any current value to compare pressure from other days. What's coolest is that you can swipe through multiple units and instantly see the pressure in the value you are interested in, including: - pounds per square inch - millibar - hectopascal - kilopascal - millimeter of mercury - bar - inch of mercury With one screen swipe, you can see an altimeter gauge with current values, our precise altitude calculation algorithms (which involve GPS, network services and calibrated pressure sensors) we deliver you the most accurate elevation info as possible, in barometric units or if you prefer, you can swipe over to metric and imperial units. Custom notifications. You can now add time-based notifications: just setup the time and days on which you want to receive notifications with current pressure values and voila. You can also set a pressure level alarm, above or below which the device will warn you. https://mysticmobileapps.com/legal/terms/barometer https://mysticmobileapps.com/legal/privacy/barometer

Screenshots

Celsius Thermometer Plus1 screens
My Barometer and Altimeter4 screens

Verdict

The call

The clearest difference is update cadence: My Barometer and Altimeter at monthly against Celsius Thermometer Plus's every 7 months. My Barometer and Altimeter also leads on ratings volume (1.1K vs 54). Celsius Thermometer Plus's advantage is rating (4.7 vs 4.4) and monetization model (ad-supported vs free with in-app purchases). On price, review sentiment, ads and in-app purchases 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. Celsius Thermometer Plus sells 1 one-off in-app purchase and My Barometer and Altimeter sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Celsius Thermometer Plus holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: My Barometer and Altimeter has 1.1K ratings behind it against 54, so its average is the more settled of the two. Written reviews point the same way: 38% of Celsius Thermometer Plus's written reviews are positive against 31% of My Barometer and Altimeter's.

UpkeepUpdate frequency

Celsius Thermometer Plus ships an update every 7 months, My Barometer and Altimeter monthly. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

Scorecard5 real differences · 5 level
Celsius Thermometer Plus versus My Barometer and Altimeter: the parameters behind the verdict, then further details
ParameterCelsius Thermometer PlusMy Barometer and Altimeter
PriceFreeFree
Rating4.7 (54 ratings) — better4.4 (1.1K ratings)
Positive reviews38.5% of reviews — better31.0% of reviews
Number of ratings541.1K — better
Update frequencyEvery 7 monthsMonthly — better
AdsYesYes
In-app purchasesYesYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS13 — better17.6
Further details — not scored
Size11 MB67 MB
Age rating4+4+
DeveloperSHIGETO TAKAGIMYSTIC MOBILE APPS LLC

Customer experience

Celsius Thermometer Plus

All ratings54 ratings
Positive92.6%
Neutral5.6%
Negative1.9%
Written reviews26 reviews
Positive38.5%
Neutral11.5%
Negative50.0%

My Barometer and Altimeter

All ratings1,091 ratings
Positive84.9%
Neutral5.5%
Negative9.6%
Written reviews168 reviews
Positive31.0%
Neutral14.3%
Negative54.8%

Bugs and requests

Celsius Thermometer Plus

Not enough reviews yet to summarise bugs or requests.

My Barometer and Altimeter

Reported bugs

4 issues
  • App crashes on launch
  • Widget not updating correctly
  • Incorrect unit conversions
  • Altitude data not working

Requested features

4 requests
  • Add calibration option
  • Improve data visualization and trend tracking
  • Provide ad-free paid version
  • Restore previous user interface

In-app purchases

1 purchases

Celsius Thermometer Plus

One-time1
  • Remove Ads$1.99
2 purchases

My Barometer and Altimeter

Subscriptions2
  • Monthly premium subscription14 Days trial$0.991 Month
  • Annual premium subscription14 Days trial$8.491 Year

Questions

Is Celsius Thermometer Plus free?
Celsius Thermometer Plus is free to download, with in-app purchases available.
Is My Barometer and Altimeter free?
My Barometer and Altimeter is free to download, with in-app purchases available.
Which has better reviews, Celsius Thermometer Plus or My Barometer and Altimeter?
Celsius Thermometer Plus is rated higher. Celsius Thermometer Plus averages 4.7 out of 5 from 54 ratings, while My Barometer and Altimeter averages 4.4 from 1.1K ratings.
Do Celsius Thermometer Plus or My Barometer and Altimeter have ads?
Both Celsius Thermometer Plus and My Barometer and Altimeter show ads.
Which is updated more often, Celsius Thermometer Plus or My Barometer and Altimeter?
Celsius Thermometer Plus ships an update every 7 months, and My Barometer and Altimeter monthly. Most recently, Celsius Thermometer Plus was updated on November 1, 2026 and My Barometer and Altimeter on October 29, 2026.

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