Comparison

SensorLog vs WITMOTION

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

Head to head
About

SensorLog

Record and stream sensor data from your iPhone, iPad, and Apple Watch. Export data in CSV or JSON format, or send it via TCP, UDP, or HTTP requests. Integrates with Core ML models for advanced analysis.

Highlights
  • Log sensor data up to 100Hz
  • Stream data via TCP/UDP or HTTP
  • Export data as CSV or JSON
  • Remote client/server functionality
  • Siri and Shortcuts integration
  • Core ML model support
  • HealthKit data export from Apple Watch
Features
Read full description

With SensorLog you can read sensor data from the iPhone, iPad and Apple Watch. The sensor data can be saved as a file in CSV or JSON format, streamed via TCP/UDP or sent as an HTTP request. The most important functions for iPhone and iPad: - Sensor data can be recorded at up to 100Hz (depending on the iOS device version and sensor type). - Sensor data can be streamed in server or client mode using TCP or UDP. Depending on the network speed and the server or client configuration used, this is possible with up to 100Hz. - Via HTTP(S) GET/POST request, sensor data in JSON format (POST) or form-url encoded (POST and GET) can be transmitted to a REST API with up to 20Hz. - With the SensorLog Remote Client/Server function, an iPad or iPhone can connect as a SensorLog Remote Client to an iPhone or iPad, which takes on the role of SensorLog Remote Server. The client's sensor data can be visualized on the server, and the server can control the clients (start/stop logging, start/stop sending data). - Logging can be started and stopped using Siri and shortcuts. - SensorLog supports Core ML models created with Apple's Create ML app. Log data with SensorLog, train a model with the data in Create ML, load exported models in SensorLog and log the model prediction. Supported Create ML models are: Activity Classifier, Tabular Regressor and Tabular Classifier. - If you have an Apple Watch, HealthKit data such as heart rate, energy used, sleep and movement data can be exported on the watch as a csv or json file and then transferred to your iPhone. Sensor data iPhone / iPad: For sample log files, please visit the SensorLog homepage (link App Support). - CLLocation, CLHeading, CMAccelerometer, CMGyroData, CMMagnetometer, CMDeviceMotion, CMActivity, CMPedometer, CMAltimeter, WLAN and network provider IP addresses, device orientation, battery info, decibels. The most important functions for Apple Watch: - Logging Option 1: Logging duration up to 1 hour Simultaneous logging of all selectable sensor data is supported in the background with up to 50Hz. Individual sensors can be logged with a higher frequency of up to 100Hz. Sending data via HTTP requests is supported. - Logging option 2: Logging duration greater than 1 hour In the background only logging of the accelerometer data with max. 50Hz is supported. In the foreground all sensor data with up to 100Hz. Sending data via HTTP requests is only supported when the app is in the foreground. - Via HTTP(S) GET/POST request, sensor data can be transmitted to a REST API with up to 10Hz in JSON format (POST) or form-url encoded (POST and GET). - The Health Store data feature off the SensorLog Watch app allows you to export HealthKit data like heart rate, energy burned, sleep, and movement data. This data is automatically recorded by your Watch and can be read out and exported by SensorLog as csv or json file and transferred to your iPhone. - Logging can be started and stopped using Siri and Shortcuts. Sensor Data Watch: For sample log files, please visit the SensorLog homepage (link App Support). - CLLocation, CMAccelerometer, CMDeviceMotion, CMActivity, CMPedometer, CMAltimeter, battery info

About

WITMOTION

This app provides convenient sensor data display and configuration for tilt sensors. It offers real-time data, visual charts, 3D angle display, and data recording for analysis.

Highlights
  • Real-time tilt sensor data display
  • Sensor configuration (sample rate, sensitivity)
  • Visual chart tools (curve, scatter plots)
  • 3D angle display
  • User-friendly interface
  • Data recording and export
Features
Read full description

introduce: This App is a tool designed specifically for connecting tilt sensors and aims to provide users with convenient sensor data display and configuration functions. Whether you are a professional engineer or an ordinary user, you can easily use this App to monitor and control sensor performance. The following are the main functions and features of the App: 1. Sensor data display: This App can display the tilt sensor data instantly and accurately. Users can view real-time tilt angle, tilt direction and other related data. Whether you need simple tilt measurement or more complex data analysis, this App can meet your needs. 2. Sensor configuration: Users can configure the sensor through the App to meet specific needs. This includes adjusting sample rate, sensitivity, filter settings, etc. 3. Visual chart tools: The App provides visual tools such as curve charts and scatter plots to graphically display the changing trends of sensor data. This helps users understand the data more clearly. 4. 3D angle display: Visualizing tilt angle data in a 3D environment is a unique feature for users. This can be used for game development, virtual reality projects, or any application that requires real-time angle information. 5. User-friendly interface: The interface design of the App is simple and intuitive, making it easy to use. Users can quickly navigate and find the functionality they need, without requiring specialized knowledge. 6. Data recording and export: Users can record sensor data and export it as a file for future analysis or sharing.

Screenshots

SensorLog4 screens
WITMOTION4 screens

Verdict

The call

The clearest difference is price: WITMOTION at Free against SensorLog's $2.99. WITMOTION also leads on in-app purchases (none vs 4) and update cadence (every 2 weeks vs every 2 months). SensorLog's advantage is rating (4.4 vs 3.0) and review sentiment (69% vs 38%). On ads 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

WITMOTION is free to download; SensorLog costs $2.99 up front. SensorLog sells 4 one-off in-app purchases. WITMOTION asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SensorLog holds the better App Store score, 4.4 against 3.0. Both are backed by a comparable volume of ratings — 40 and 10 respectively. Written reviews point the same way: 69% of SensorLog's written reviews are positive against 38% of WITMOTION's.

UpkeepUpdate frequency

SensorLog ships an update every 2 months, WITMOTION every 2 weeks. The most recent releases landed on October 8, 2026 and September 26, 2026 respectively.

Scorecard8 real differences · 2 level
SensorLog versus WITMOTION: the parameters behind the verdict, then further details
ParameterSensorLogWITMOTION
Price$2.99Free — better
Rating4.4 (40 ratings) — better3.0 (10 ratings)
Positive reviews69.0% of reviews — better37.5% of reviews
Number of ratings40 — better10
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS18.015.6 — better
Further details — not scored
Size4 MB33 MB
Age rating4+17+
DeveloperBernd ThomasWitMotion Shenzhen Co.,Ltd

Customer experience

SensorLog

All ratings40 ratings
Positive82.5%
Neutral2.5%
Negative15.0%
Written reviews126 reviews
Positive69.0%
Neutral7.9%
Negative23.0%

WITMOTION

All ratings10 ratings
Positive40.0%
Neutral20.0%
Negative40.0%
Written reviews8 reviews
Positive37.5%
Neutral12.5%
Negative50.0%

In-app purchases

4 purchases

SensorLog

One-time4
  • Buy me a Coffee ...$0.99
  • Spend me an Ice Cream ...$1.99
  • Offer me a glas of Wine ...$5.99
Show 1 more
  • Invite me for a Cocktail ...$9.99
None

WITMOTION

No in-app purchases

Questions

Is SensorLog free?
SensorLog costs $2.99, and also offers in-app purchases.
Is WITMOTION free?
WITMOTION is free to download, with no in-app purchases.
Which has better reviews, SensorLog or WITMOTION?
SensorLog is rated higher. SensorLog averages 4.4 out of 5 from 40 ratings, while WITMOTION averages 3.0 from 10 ratings.
Do SensorLog or WITMOTION have ads?
Neither SensorLog nor WITMOTION shows ads.
Which is updated more often, SensorLog or WITMOTION?
SensorLog ships an update every 2 months, and WITMOTION every 2 weeks. Most recently, SensorLog was updated on October 8, 2026 and WITMOTION on September 26, 2026.

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