Comparison

Accelerometer vs altimeter professional

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

Head to head
About

Accelerometer

Transform your device into a precise 3-axis accelerometer. Monitor live acceleration and G-force readings, record motion data, and export it in various formats for detailed analysis. Ideal for experiments, testing, and engineering.

Highlights
  • Realtime X/Y/Z acceleration
  • G-force measurement
  • Record motion sessions
  • CSV/JSON/XML export
  • Adjustable sample rate
  • Max/Min tracking
Features
Read full description

Turn your iPhone into a precise 3-axis accelerometer. View live acceleration and G-force data, record motion, and export everything for analysis. Features • Realtime X/Y/Z acceleration • G-force measurement • Gravity on / off • CSV / JSON / XML export • Store recorded sessions • Adjustable sample rate • Max / Min tracking • Clean, fast, offline Use it for • Physics experiments • Motion/vibration tests • Vehicle acceleration • Engineering measurements • Hobby projects and diagnostics Simple. Accurate. Instant data. Help us make Accelerometer even better by reviewing it. We'll include your feature requests in future updates.

About

altimeter professional

This app provides highly accurate altitude and position detection using GPS and barometric sensors. It features a graphical analog display with digital readings, tracks maximum altitude reached, and allows users to calibrate readings. You can also take and share photos with location data or send emergency SMS messages with GPS coordinates.

Highlights
  • Accurate altitude and position detection
  • Analog and digital display
  • Maximum altitude tracking
  • Photo capture with altitude and location
  • Emergency SMS with GPS coordinates
  • Altitude calibration
  • Meters or feet display
Features
Read full description

The professional altimeter with automatic altitude detection that works even without an internet connection! With the professional altimeter app, you can find out the actual altitude of the place where you are. The app automatically displays the altitude using a complex algorithm that combines three measurement methods: * Through satellite triangulation (also works without an internet connection) * Through map altitude, retrieving the terrain elevation for your location * Through the pressure sensor (if available), calibrated using the nearest weather station Carefully designed from a graphical perspective, the app recreates an analog altimeter (in meters or feet) with a digital measurement display. Here are some of the features: * Automatic altitude measurement (with the option to manually select one of the three measurement methods: [Map Altitude, Flight Altitude, GPS Altitude]) * History function with route tracking on the map and elevation-change graphs [works even when the app is closed], with indicators for speed, average speed, and elevation gain * Photo gallery of your routes with data overlaid on the photos * Alert system for sending your location by message or SMS in case of need * Weather forecast with trend information, temperature, and humidity measurements * Photos with overlaid data, location, and altitude * Custom widget to add to your Home Screen With the additional Premium feature, you can: * Remove advertisements * Remove the branding from photos OPTIONAL SUBSCRIPTION Only if you want to, you can activate the Premium version to remove ads and the watermark from photos: 1 month, 6 months or 1 year. Payment will be charged to your Apple Account upon confirmation of purchase. The subscription automatically renews unless cancelled at least 24 hours before the end of the current period; you can manage or turn it off in your account settings. Privacy Policy: https://www.mailant.it/privacyapp/privacyAltimetro.htm Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Accelerometer4 screens
altimeter professional4 screens

Verdict

The call

The clearest difference is in-app purchases: altimeter professional at none against Accelerometer's 1. altimeter professional also leads on ratings volume (20 vs 1). Accelerometer's advantage is ads (none vs shown) and update cadence (every 5 months vs every 67 months). On price, rating, review sentiment 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. Accelerometer sells 1 one-off in-app purchase. altimeter professional asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.0 for Accelerometer against 4.0 for altimeter professional. That said, the two scores are not equally well evidenced: altimeter professional has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 54% of Accelerometer's written reviews are positive against 61% of altimeter professional's.

UpkeepUpdate frequency

Accelerometer ships an update every 5 months, altimeter professional every 67 months. The most recent releases landed on June 9, 2026 and September 26, 2026 respectively.

Scorecard5 real differences · 5 level
Accelerometer versus altimeter professional: the parameters behind the verdict, then further details
ParameterAccelerometeraltimeter professional
PriceFreeFree
Rating4.0 (1 ratings)4.0 (20 ratings)
Positive reviews53.7% of reviews61.4% of reviews — better
Number of ratings120 — better
Update frequencyEvery 5 months — betterEvery 67 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size2 MB27 MB
Age rating4+4+
DeveloperJan HalozanFFZ srl

Customer experience

Accelerometer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews41 reviews
Positive53.7%
Neutral19.5%
Negative26.8%

altimeter professional

All ratings20 ratings
Positive65.0%
Neutral20.0%
Negative15.0%
Written reviews57 reviews
Positive61.4%
Neutral8.8%
Negative29.8%

In-app purchases

1 purchases

Accelerometer

One-time1
  • Accelerometer Pro$1.99
None

altimeter professional

No in-app purchases

Questions

Is Accelerometer free?
Accelerometer is free to download, with in-app purchases available.
Is altimeter professional free?
altimeter professional is free to download, with no in-app purchases.
Which has better reviews, Accelerometer or altimeter professional?
Accelerometer and altimeter professional are both rated 4.0 out of 5 on the App Store, from 1 and 20 ratings respectively.
Do Accelerometer or altimeter professional have ads?
altimeter professional shows ads; Accelerometer does not.
Which is updated more often, Accelerometer or altimeter professional?
Accelerometer ships an update every 5 months, and altimeter professional every 67 months. Most recently, Accelerometer was updated on June 9, 2026 and altimeter professional on September 26, 2026.

Other comparisons