Comparison

SensorLog vs Sensors Toolbox

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
Currently charting
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

Sensors Toolbox

Access and visualize data from all your smartphone's sensors in real time. Collect information from accelerometers, gyroscopes, GPS, barometers, and more, then convert it into easy-to-read graphs. This app offers a clean, intuitive interface for comprehensive sensor analysis.

Highlights
  • Real-time sensor data collection
  • Accelerometer, gyroscope, GPS
  • Barometer, decibel meter, metal detector
  • Compass functionality
  • Intuitive graph visualization
  • User-friendly interface
Features
Read full description

Sensor toolbox makes the most of all the sensors in your smartphone. With a user-friendly interface and easy to read layout, Sensor Multitool - Toolbox allows you to collect data in real time for any and all sensors on your phone. Convert the data into easy to read graphs with a detailed readout from each sensor. This app contains everything you need: an accelerometer, gyroscope, GPS Data, barometer, decibel meter, metal detector, compass, and much more. This app follows all material design guidelines, meaning the app is clean and simple to use This app uses intuitive graphs to create clean, orderly graphs of all data collected.

Screenshots

SensorLog4 screens
Sensors Toolbox4 screens

Verdict

The call

The clearest difference is price: Sensors Toolbox at Free against SensorLog's $2.99. Sensors Toolbox also leads on in-app purchases (none vs 4) and ratings volume (134 vs 40). SensorLog's advantage is ads (none vs shown) and update cadence (every 2 months vs every 7 months). On 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

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

ReceptionRating · Positive reviews · Number of ratings

SensorLog holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 40 and 134 respectively. Written reviews point the same way: 69% of SensorLog's written reviews are positive against 53% of Sensors Toolbox's.

UpkeepUpdate frequency

SensorLog ships an update every 2 months, Sensors Toolbox every 7 months. The most recent releases landed on September 21, 2026 and August 20, 2026 respectively.

Scorecard10 real differences · 1 level
SensorLog versus Sensors Toolbox: the parameters behind the verdict, then further details
ParameterSensorLogSensors Toolbox
Price$2.99Free — better
Rating4.4 (40 ratings) — better4.2 (134 ratings)
Positive reviews69.0% of reviews — better52.8% of reviews
Number of ratings40134 — better
Update frequencyEvery 2 months — betterEvery 7 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
Best chart rank#160 — better—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS18.015.0 — better
Further details — not scored
Size4 MB17 MB
Age rating4+4+
DeveloperBernd ThomasAndrew Neal

Customer experience

SensorLog

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

Sensors Toolbox

All ratings134 ratings
Positive81.3%
Neutral2.2%
Negative16.4%
Written reviews53 reviews
Positive52.8%
Neutral9.4%
Negative37.7%

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

Sensors Toolbox

No in-app purchases

Questions

Is SensorLog free?
SensorLog costs $2.99, and also offers in-app purchases.
Is Sensors Toolbox free?
Sensors Toolbox is free to download, with no in-app purchases.
Which has better reviews, SensorLog or Sensors Toolbox?
SensorLog is rated higher. SensorLog averages 4.4 out of 5 from 40 ratings, while Sensors Toolbox averages 4.2 from 134 ratings.
Do SensorLog or Sensors Toolbox have ads?
Sensors Toolbox shows ads; SensorLog does not.
Which is updated more often, SensorLog or Sensors Toolbox?
SensorLog ships an update every 2 months, and Sensors Toolbox every 7 months. Most recently, SensorLog was updated on September 21, 2026 and Sensors Toolbox on August 20, 2026.

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