Comparison

Accelerometer vs Horizontal Accelerometer

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

Horizontal Accelerometer

This tool measures real-time horizontal acceleration, deceleration, and lateral G-force for automobiles. It features color-coded zones and sounds for easy understanding while driving and can also be used for engineering education and evaluating structural rigidity.

Highlights
  • Real-time horizontal acceleration measurement
  • Measures deceleration and lateral G-force
  • Color zones and sound alerts for values
  • Calibration for accurate readings
  • Peak hold and max value tracking
  • Adjustable color zone thresholds and sound
Features
Read full description

"Horizontal Accelerometer" is a tool that displays horizontal acceleration in real time. (Application) - Measures acceleration, deceleration, and lateral G of automobiles. The acceleration value in the direction felt by the driver is displayed. Color zones and sounds make acceleration values easy to understand even while driving. - Rigidity evaluation of table legs - The horizontal accelerometer allows engineering students to actually measure and feel the acceleration value, which is useful for understanding the equation of motion. (How to use) 1. Fix the iPhone on the object to be measured. No need to fix it horizontally. When measuring the acceleration of a car, fix the iPhone on the dashboard at an angle that makes it easy to see the screen and so as not to shake. When evaluating the rigidity of the table legs, place the iPhone on the table surface, and if the iPhone slips when the table is shaken, fix it with tape. 2. Tap the "Calibration" button, then tap the "Calibrate" button. The display of the horizontal acceleration value starts. In the case of a car, please stop the car on a horizontal road and then calibrate. (Screen display) - The number at the top of the screen is the value of real-time horizontal acceleration. - "Peak hold" is the peak value of horizontal acceleration. Reset after the set time. - ”Max" is the maximum value of horizontal acceleration. Reset with the “Reset Max" button. - Acceleration values can change to red and yellow depending on the threshold. (Calibration dialog) Tap the "Calibration" button to bring up the calibration dialog. - "Calibrate": Executes calibration in the current fixed state. - ”Recall Calibration": Recall the saved calibration. - "Save Calibration": Save the current calibration. - "List of useful apps": Displays a list of useful apps. (Setting dialog) Tap the "Setting" button to bring up the setting dialog. - "List of useful apps": Displays a list of useful apps. - “Setting": A setting window appears. (Setting window) - "Color zone(value(G) or more)": Color zone thresholds, color on/off, and sound on/off can be set. The default thresholds are Red 0.40 and Yellow 0.30. - "Peak hold time(s)": Peak hold time can be set. Default is 10. - "Harshness cut filter": Harshness cut filter on/off can be set. "Harshness" means impact vibration. - "Desensitization(%)": Desensitization rate can be set. Default is 0. (Remarks) - This app works on iPhone and iPad. - Tilting the device tilts the calibrated horizontal plane, so measurement error occurs. - The developer assumes no responsibility for any loss or claims by third parties which may arise from the use of this app.

Screenshots

Accelerometer4 screens
Horizontal Accelerometer1 screens

Verdict

The call

The clearest difference is in-app purchases: Horizontal Accelerometer at none against Accelerometer's 1. Horizontal Accelerometer also leads on update cadence (every 6 weeks vs every 5 months) and iOS requirement (13.0 vs 17.6). Accelerometer's advantage is ads (none vs shown). On price, 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. Horizontal Accelerometer asks for nothing beyond the download.

UpkeepUpdate frequency

Accelerometer ships an update every 5 months, Horizontal Accelerometer every 6 weeks. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

Scorecard5 real differences · 5 level
Accelerometer versus Horizontal Accelerometer: the parameters behind the verdict, then further details
ParameterAccelerometerHorizontal Accelerometer
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews53.7% of reviews — better50.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 5 monthsEvery 6 weeks — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size2 MB6 MB
Age rating4+4+
DeveloperJan HalozanTakao Ichimura

Customer experience

Accelerometer

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

Horizontal Accelerometer

Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

1 purchases

Accelerometer

One-time1
  • Accelerometer Pro$1.99
None

Horizontal Accelerometer

No in-app purchases

Questions

Is Accelerometer free?
Accelerometer is free to download, with in-app purchases available.
Is Horizontal Accelerometer free?
Horizontal Accelerometer is free to download, with no in-app purchases.
Do Accelerometer or Horizontal Accelerometer have ads?
Horizontal Accelerometer shows ads; Accelerometer does not.
Which is updated more often, Accelerometer or Horizontal Accelerometer?
Accelerometer ships an update every 5 months, and Horizontal Accelerometer every 6 weeks. Most recently, Accelerometer was updated on October 6, 2026 and Horizontal Accelerometer on October 7, 2026.

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