Comparison

G vs Sensor

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

Head to head
About

G

This app records and analyzes motion data from your device's sensors, including acceleration, rotation, and GPS information. It's designed for experiments, performance analysis, and tracking various movements. Data can be exported in CSV format and is resistant to loss.

Highlights
  • Logs and plots motion data (acceleration, rotation)
  • Records ground speed, altitude, distance, and displacement
  • Virtually unlimited recording time
  • Programmable data acquisition control
  • Remote control via Apple Watch
  • Configurable acceleration reference frame
  • Export data in CSV format
Read full description

G-Field Recorder is an easy-to-use and powerful data acquisition and analysis system for iOS device deployments. G-Field Recorder logs, plots, and replays: - 3-axis acceleration fields - 3-axis rotational displacements - Ground speed - Altitude - Distance - Displacement - Course Use this app to assist your analysis of experiments, sports performance, drone behaviors, land vehicle and watercraft actions, security applications, structural behaviors, and more. All of your data is logged on your device, where you may retain it indefinitely, share, or delete the files of your choosing. All data files are easy to export in CSV format via AirDrop and other methods (e.g. Slack, email, LinkedIn ...) available on your device. Developed for NASA payloads, G-Field Recorder is resistant to data loss from impacts, continuously saving your data to permanent storage in case of a severe upset event that damages your device (e.g. you crash your drone). Features: - Logs and plots of motion data: -- 3 Axis Acceleration Field -- 3 Axis Rotations (Pitch, Roll, and Yaw) - Virtually unlimited recording time.  The collected data is automatically stored in as many sequentially indexed files as required, up to about 5 MB per file (for easy search and review). Data storage capability is up to the max storage availability on the device. - Programmable data acquisition control:  - Relative start time  - Absolute start time - Relative stop time - Acceleration reference frame is configurable: -Choose to ignore or sense gravity - Select reference frames: Proper, Fictitious, or Coordinate acceleration - Remote control and monitoring via Apple Watch: - Apple Watch can start and stop data collection, overriding any device-programmed start and stop times  - Apple Watch can set the acceleration reference frame - Set sampling frequency from vanishingly small (e.g. 0.001 Hz) up to 100 Hz - Computed averages and extrema of are automatically logged for all recorded motion data - Rewind and instant playback of recorded data - Text notes and an image can be added to each stored data file - Selectable animated icon graphics GPS Package In-App Purchase (recommended ) -- Ground Speed, Course, Altitude -- Distance & Displacement -- Illustrated path overlayed on Apple Map

About

Sensor

Access and utilize all your device's sensors with this comprehensive tool. Explore GPS, gyroscope, acceleration, magnetometer, altimeter, and attitude data for various applications and research.

Highlights
  • Access GPS for precise location
  • Utilize gyroscope for orientation
  • Measure acceleration and movement
  • Detect magnetic fields with magnetometer
  • Access altimeter and pressure data
  • Monitor device attitude (roll, pitch, yaw)
Read full description

Unlock the full potential of your iPhone and iPad with Sensor-App, the ultimate tool for accessing and utilizing all of your device's sensors. Whether you're an enthusiast, a developer, or simply curious about your device's capabilities, Sensor-App offers a comprehensive suite of tools at your fingertips. Explore a plethora of sensors including: - **GPS**: Navigate with precision and track your device’s exact location. - **Gyroscope**: Experience precise orientation and rotation insights for enhanced application performance. - **Acceleration Sensor**: Measure the speed and direction of movement, perfect for fitness and motion-based applications. - **Magnetometer**: Detect magnetic field strength and direction, useful for navigation and augmented reality. - **Altimeter/Pressure Sensor**: Access real-time altitude and pressure data, ideal for outdoor adventures. - **Attitude**: Understand device posture with detailed readings of roll, pitch, and yaw. Designed with both power users and beginners in mind, Sensor-App provides intuitive access to your device’s advanced hardware features. Take control of your sensor data and transform how you interact with the world around you. Whether for personal exploration, scientific research, or application development, Sensor-App is your gateway to a more insightful mobile experience.

Screenshots

G4 screens
Sensor4 screens

Verdict

The call

The clearest difference is in-app purchases: Sensor at none against G's 2. G's advantage is update cadence (every 4 days vs every 2 months) and iOS requirement (14.7 vs 26.0). On price, rating, review sentiment and ratings volume 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. G sells 2 one-off in-app purchases. Sensor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.9 for G against 4.0 for Sensor. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews are what separate them: 50% of G's written reviews are positive against 56% of Sensor's.

UpkeepUpdate frequency

G ships an update every 4 days, Sensor every 2 months. The most recent releases landed on July 4, 2026 and September 10, 2026 respectively.

Scorecard4 real differences · 6 level
G versus Sensor: the parameters behind the verdict, then further details
ParameterGSensor
PriceFreeFree
Rating3.9 (7 ratings)4.0 (4 ratings) — better
Positive reviews50.0% of reviews55.6% of reviews — better
Number of ratings7 — better4
Update frequencyEvery 4 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Apple Watch
Requires iOS14.7 — better26.0
Further details — not scored
Size35 MB40 MB
Age rating4+4+
DeveloperStratos Perception, LLCVolker Schmitt

Customer experience

G

All ratings7 ratings
Positive71.4%
Neutral0.0%
Negative28.6%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Sensor

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive55.6%
Neutral11.1%
Negative33.3%

In-app purchases

2 purchases

G

One-time2
  • Multi-Plot$0.99
  • Professional$3.99
None

Sensor

No in-app purchases

Questions

Is G free?
G is free to download, with in-app purchases available.
Is Sensor free?
Sensor is free to download, with no in-app purchases.
Which has better reviews, G or Sensor?
Sensor is rated higher. G averages 3.9 out of 5 from 7 ratings, while Sensor averages 4.0 from 4 ratings.
Do G or Sensor have ads?
Neither G nor Sensor shows ads.
Which is updated more often, G or Sensor?
G ships an update every 4 days, and Sensor every 2 months. Most recently, G was updated on July 4, 2026 and Sensor on September 10, 2026.

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