Comparison

ErgoArmMeter vs Sensor Logs

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

Head to head
About

ErgoArmMeter

Features
Read full description

ErgoArmMeter is a professional inclinometer for measuring and recording arm elevation during work. It is shown by research that work with elevated arm may lead to shoulder/neck disorders. Ergonomists have been using inclinometers to measure arm elevation, which have a better precision compared to self-reports and observations of arm elevation. With ErgoArmMeter, arm elevation during work time can be measured easily and with low cost. ErgoArmMeter is validated that it has similar accuracy compared to other former validated inclinometers. How to use (also accessible in the app): Attach the phone using a sport armband on the upper arm, with the upper edge just below the deltoid muscle, then: 1. Start a measurement by clicking “+”, fill in a project name and a recording number and “Create” the trial. 2. Conduct calibration by leaning to the side, holding some weight (e.g. a 2 kg dumbbell) with a straight-arm, and click “Calibrate”, keep the posture for 2 seconds. 3. Click “Start” to start the measurement, time is shown, and the arm elevation angle is recorded. 4. Press “Stop” to end the measurement. To view the results, click on the trial name in the trial list. 5. Click “Share” to send the results and the whole data set via email. Notice: Since ErgoArmMeter uses accelerometer and gyroscope in the phone, it requires the phone remain unlocked to stay functioning. It is recommended that you change “Auto-Lock” function in your phone, via “Settings-General-AutoLock-Never”, and then use the phone to measure arm elevation as long as you need. ErgoArmMeter is designed be used in evaluating workplace before and after interventions. It can also be used for educational purpose. Together with other information about the work task, it can add valuable information for risk assessments of a certain work task.

About

Sensor Logs

Stream real-time sensor data from your iOS device to a local server using socket.io or HTTP requests. This utility app is designed for developers to monitor their surroundings with minimal interface and adjustable streaming periods.

Highlights
  • Stream accelerometer, gyroscope, magnetometer data
  • Adjustable streaming period
  • HTTP and socket.io protocols
  • Minimal user interface
  • Developer-focused utility
Features
Read full description

Sensor Logger is the easiest way to stream sensor data from your iOS device straight to a locally hosted server in the form of socket.io or HTTP requests. With a stripped down, minimal interface, Sensor Logger provides exactly what you need and nothing that you don't. - Track your device's accelerometer, gyroscope, and magnetometer. - Adjustable streaming period with a maximum speed of roughly 3 polls/second. - Two protocols to use, HTTP or socket.io (WebSocket library) - Sample node.js server with JSON and CSV exporting is available from the developer's website, www.joecrozier.ca/sensor-logger Please note - this app is meant for developers who wish to use their iOS device to monitor the world around them. If you're not comfortable writing code it's recommended you use a different application for this task.

Screenshots

ErgoArmMeter4 screens
Sensor Logs3 screens

Verdict

The call

The clearest difference is price: ErgoArmMeter at Free against Sensor Logs's $0.99. ErgoArmMeter also leads on update cadence (every 4 months vs every 88 months) and iOS requirement (8.1 vs 16.0). On ads, in-app purchases 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

ErgoArmMeter is free to download; Sensor Logs costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ErgoArmMeter ships an update every 4 months, Sensor Logs every 88 months. The most recent releases landed on October 9, 2026 and September 26, 2026 respectively.

Scorecard3 real differences · 7 level
ErgoArmMeter versus Sensor Logs: the parameters behind the verdict, then further details
ParameterErgoArmMeterSensor Logs
PriceFree — better$0.99
Rating—5.0 (1 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 4 months — betterEvery 88 months
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPod — betteriPhone
Requires iOS8.1 — better16.0
Further details — not scored
Size11 MB3 MB
Age rating4+4+
DeveloperKarolinska InstitutetJoe Crozier Software

In-app purchases

None

ErgoArmMeter

No in-app purchases

None

Sensor Logs

No in-app purchases

Questions

Is ErgoArmMeter free?
ErgoArmMeter is free to download, with no in-app purchases.
Is Sensor Logs free?
Sensor Logs costs $0.99, with no in-app purchases.
Do ErgoArmMeter or Sensor Logs have ads?
Neither ErgoArmMeter nor Sensor Logs shows ads.
Which is updated more often, ErgoArmMeter or Sensor Logs?
ErgoArmMeter ships an update every 4 months, and Sensor Logs every 88 months. Most recently, ErgoArmMeter was updated on October 9, 2026 and Sensor Logs on September 26, 2026.

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