ClockMaster vs Barometer & Altimeter & Thermo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ClockMaster
This app analyzes the ticking sound of mechanical pendulum clocks to determine their running rate and error. It's designed for accurate long-term measurements, allowing users to regulate clocks efficiently. Advanced features include printable reports and data export for in-depth analysis.
- Analyzes escapement ticking sound
- Measures running rate in Beats Per Hour (B/H)
- Reports error in Seconds Per Day (±S/D)
- Supports long-term measurements
- Generates printable PDF reports (Pro)
- Exports raw data as .csv file (Pro)
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>>> Check out the demo videos at ClockMasterApp.com ClockMaster is a clock timing software, in many ways similar to watch timegraphers, but specifically designed to work with mechanical pendulum clocks. The app analyzes the ticking sound of the escapement to determine the clock's running rate measured in Beats Per Hour (B/H). This rate is then compared to a specified Target Rate, and the Error is reported as Seconds Per Day fast or slow (±S/D). The speed of a mechanical pendulum clock is not constant, fluctuating with age and wear, spring tension and even temperature. The ClockMaster app was created with a focus on accurate long-term measurements where traditional timers often do not function very well. For the professional horologist or interested amateur, you can now test in the field — put the clock in exact beat and regulate the clock with just a few hours of testing. For increased rate accuracy and in depth investigation of clock movement's behavior, you can conduct long-term measurements for up to two weeks (ClockMaster Pro). Branded, printable PDF reports can be generated for each measurement, and the raw data exported as .csv file for graphing in a spreadsheet (ClockMaster Pro). ClockMaster Pro (in-app upgrade) provides these additional features: • Save and share branded, printable PDF reports for each measurement • Export raw measurement data as a .csv file for spreadsheet analysis • Conduct long-term measurements of up to two weeks
Barometer & Altimeter & Thermo
Measure atmospheric pressure, altitude, and current weather conditions using your device's sensors and GPS. Get real-time data on temperature, wind speed, and humidity, with automatic calibration for accuracy. Useful for health, outdoor activities, and weather prediction.
- Accurate height measurement
- Barometric pressure measurement
- GPS coordinates and location data
- Current weather information
- Outside temperature
- Wind speed and humidity
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Barometer and Altimeter is a simple application for measuring atmospheric pressure and altitude. The application uses: - built-in GPS, - built-in pressure sensor / barometer (if the device does not have a barometric sensor, application retrieves atmospheric pressure data via the Internet from the nearest meteorological station), - automatic altitude and atmospheric pressure calibration algorithm, based on data from local meteorological stations. Barometer and Altimeter features: - accurate height measurement above sea level (from GPS and other sensors), - accurate measurement of barometric pressure (if the device is equipped in pressure sensor and check data available online) - GPS coordinates, name of location, country - information and current weather data from your local weather station (if available). - outside temperature, - wind speed, - visibility, - humidity, hygrometer (if device is equipped with appropriate sensors). Exemplary uses of a barometer or altimeter tracker: - health and medical - by monitoring the atmosferic pressure, you can be prepared for pressure jumps, headaches, migraine and malaise, - for fishermen and anglers who fishing and sailing - monitoring the atmospheric pressure and weather you can increase the chances for good fishing, - sportsmen and tourists, - for determining, predicting and checking weather, air temperature, wind speed, - to check the location, - for pilots for check pressure and altitude, - sailors, seamans and surfers can check the wind. Using this barometer tracker is simpler than using an aneroid or mercury barometer. Our Barometer and Altimeter tracker is easy to use, simple and handy. Warning! Some portable devices (tablets, phones, smartphones) do not have a built-in pressure sensor. On these devices, the measurements may be less accurate as they will be based on data from the local meteorological stations. We are constantly developing this app, if you see something that can be improved send us on help@examobile.pl. If you like this app, rate it for 5 stars. Enjoy and have a good time with this app!
Screenshots
Verdict
The clearest difference is price: Barometer & Altimeter & Thermo at Free against ClockMaster's $49.99. Barometer & Altimeter & Thermo also leads on rating (4.8 vs 3.8) and ratings volume (9.6K vs 52). On ads, in-app purchases and monetization model 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
Barometer & Altimeter & Thermo is free to download; ClockMaster costs $49.99 up front. ClockMaster sells 1 one-off in-app purchase and Barometer & Altimeter & Thermo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Barometer & Altimeter & Thermo holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: Barometer & Altimeter & Thermo has 9.6K ratings behind it against 52, so its average is the more settled of the two. Written reviews point the same way: 59% of ClockMaster's written reviews are positive against 72% of Barometer & Altimeter & Thermo's.
ClockMaster ships an update every 5 months, Barometer & Altimeter & Thermo every 2 months. Both last shipped on October 29, 2026.
| Parameter | ClockMaster | Barometer & Altimeter & Thermo |
|---|---|---|
| Price | $49.99 | Free — better |
| Rating | 3.8 (52 ratings) | 4.8 (9.6K ratings) — better |
| Positive reviews | 58.6% of reviews | 71.7% of reviews — better |
| Number of ratings | 52 | 9.6K — better |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | ONYX Apps | ExaMobile S.A. |
Customer experience
ClockMaster
Barometer & Altimeter & Thermo
User reviews
ClockMaster
From 52 App Store ratingsWhat we love
- 👍 Works very well
- 👍 Accurately sets beat and calibrates time
- 👍 Good alternative to expensive dedicated instruments
- 👍 Elegant display for setting beat and symmetry
- 👍 Works well for professional clock repairers
Room to improve
- 😞 Frustrating data handling
- 😞 Spreadsheet export issues
- 😞 iPhone notifications stop measurements
- 😞 Does not work for 400-day clocks
- 😞 External mic option missing
Barometer & Altimeter & Thermo
From 9.6K App Store ratingsWhat we love
- 😊 Simple and intuitive
- 🔍 Accurate barometric readings
- 🔢 Altimeter functionality
- 🔧 Customizable settings
- 💰 Reasonable price for ad-free version
Room to improve
- 🐛 Inconsistent altimeter accuracy
- 🔍 Questionable pressure/altitude readings
- 📈 Lack of historical data/trend analysis
- 🔍 Inaccurate weather data
- 🔍 Unreliable performance after updates
Bugs and requests
ClockMaster
Reported bugs
6 issues- Data lost if app stops unexpectedly
- iPhone notifications interrupt measurements
- External mic option not available
- App freezes after iOS upgrade
- Screen touch points unresponsive
Show 1 moreShow fewer
- Help section incomplete
Requested features
13 requests- Printable protocol like a timegrapher
- Beat delta info on regulation screen
- Option to manually restart measurement and append
- Undocumented units in spreadsheet export
- Include actual time in spreadsheet export
Show 8 moreShow fewer
- Ability to set BPH to 480 for 400-day clocks
- Plots for drift rate and periodic error within the app
- Mic that works with the app
- External mic option
- More detailed graphs
- Option to upgrade for $5 instead of $20
- Better GUI and interface
- Indication of which half of the cycle is longer/shorter
Barometer & Altimeter & Thermo
Reported bugs
4 issues- Barometer not working without internet connection
- Pressure readings not updating correctly
- Ads not removed after purchase of ad-free version
- Compatibility issues with latest iOS versions
Requested features
5 requests- Add pressure trend/history graph
- Implement weather symbols on the dial
- Allow manual altitude calibration
- Provide wind speed data
- Develop an Apple Watch companion app
In-app purchases
ClockMaster
- ClockMaster Pro$29.99
Barometer & Altimeter & Thermo
- Remove ads$1.99
Questions
Is ClockMaster free?
Is Barometer & Altimeter & Thermo free?
Which has better reviews, ClockMaster or Barometer & Altimeter & Thermo?
Do ClockMaster or Barometer & Altimeter & Thermo have ads?
Which is updated more often, ClockMaster or Barometer & Altimeter & Thermo?
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