Comparison

Senstream vs Vernier Graphical Analysis

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

Head to head
About

Senstream

This app records physiological signal data from a wearable ring, capturing electrodermal activity, ECG, PPG, temperature, and motion. It connects to the cloud for powerful data analysis, enabling new types of research.

Highlights
  • Electrodermal activity (EDA/GSR) capture
  • ECG and PPG data recording
  • Temperature and motion sensing
  • Mobile and cloud data synchronization
  • BIOPAC integration
Read full description

RESEARCH RING: LAB GRADE PHYSIOLOGICAL DATA ACQUISITION PLEASE NOTE:  The Senstream Researcher Ring is not a medical device and is not intended to diagnose, treat, cure, monitor, or prevent medical conditions or illnesses. The app is designed to record physiological signal data, but not to make medical decisions. Multi-Sensor: Electrodermal activity (EDA, aka GSR), ECG, PPG, temperature and motion, captured from a single, user friendly device with long battery life. Electrodermal Data: Our initial product is the first ring form factor device that captures electrodermal activity with lab quality, enabling new types of research. ECG and/or Pulse: Capture electrocardiograph (ECG) and/or photoplethysmograph (PPG) data, depending on the specific needs of a study or application. Temperature and Motion: Capture temperature data from the finger, and contextualize physiological data with motion data captured by the Research Ring. Mobile and Cloud Apps: Start capturing data with just a ring and mobile app, which seamlessly connects to the cloud. BIOPAC integration offers powerful tools. Bold Vision: The Senstream roadmap, supported by a rich patent portfolio, leverages the convenience and unique physiology of the finger. Stay tuned!

About

Vernier Graphical Analysis

This app allows science students to collect, graph, and analyze data from Vernier sensors. It supports various sensor types, offers multiple data collection modes, and provides powerful analysis tools like curve fitting and statistics. Data can be shared and exported for reports and further analysis.

Highlights
  • Multi-sensor data collection
  • Various data collection modes
  • Simultaneous graph display
  • Data table view
  • Curve fitting
  • Statistical calculations
  • Data export (.CSV)
Features
Read full description

Graphical Analysis™ is a tool for science students to collect, graph, and analyze data from Vernier sensors. Sensor data-collection support: • Vernier Go Direct® sensors - with Bluetooth® wireless technology • Vernier Go Wireless® Heart Rate and Go Wireless Exercise Heart Rate monitors • Vernier LabQuest® sensors used with a LabQuest Stream interface Additional experiment options: • Data Sharing via Wi-Fi connection to LabQuest 2 or Logger Pro® 3 • Manual Entry Note: Sensor data collection and Data Sharing require the purchase of hardware from Vernier Science Education. Manual entry of data can be performed without a hardware purchase. For more information on Data Sharing, visit http://www.vernier.com/css Key Features - Data Collection • Multi-sensor data-collection support • Time Based, Event Based, Drop Counting, and Photogate data-collection modes • Configurable data-collection rate and duration for time-based data collection • Optional triggering of time-based data collection based on sensor value • Customizable unit display on supported sensors • Sensor calibrations • Option to zero and reverse sensor readings • Graph match feature for use with motion detectors • Manual entry of data from keyboard and clipboard Key Features - Data Analysis • Display one, two, or three graphs simultaneously • View data in a table or show a graph and table side-by-side • Draw Predictions on a graph to uncover misconceptions • Examine, interpolate/extrapolate, and select data • Use Tangent tool to show instantaneous rates of change of the data • Find area under a curve using the Integral tool • Apply Statistics calculations to find mean, min, max, and standard deviation • Perform curve fits, including linear, quadratic, natural exponent, and more • Add calculated columns based on existing data to linearize data or investigate related concepts Key Features - Collaboration and Sharing • Create text annotations and add graph titles • Export graphs and data for printing and inclusion in lab reports • Export data in .CSV format for analysis of data in spreadsheet software such as Excel, Google Sheets, and Numbers • Adjust font sizes for easier viewing when presenting to your class Vernier Science Education has over 35 years of experience in providing effective learning resources for understanding experimental data in science and math classrooms. Graphical Analysis 4 is a part of the extensive system of sensors, interfaces, and data-collection software from Vernier for science and STEM education.

Screenshots

Senstream4 screens
Vernier Graphical Analysis3 screens

Verdict

The call

The clearest difference is rating: Senstream at 4.3 against Vernier Graphical Analysis's 2.1. Senstream also leads on device support (4 vs 2). Vernier Graphical Analysis's advantage is ratings volume (521 vs 3). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Senstream holds the better App Store score, 4.3 against 2.1. That said, the two scores are not equally well evidenced: Vernier Graphical Analysis has 521 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Senstream ships an update every 3 months, Vernier Graphical Analysis every 2 months. The most recent releases landed on September 19, 2026 and September 24, 2026 respectively.

Scorecard3 real differences · 7 level
Senstream versus Vernier Graphical Analysis: the parameters behind the verdict, then further details
ParameterSenstreamVernier Graphical Analysis
PriceFreeFree
Rating4.3 (3 ratings) — better2.1 (521 ratings)
Positive reviews—32.3% of reviews
Number of ratings3521 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Mac, Vision Pro — betteriPhone, iPad
Requires iOS17.6 — better17.7
Further details — not scored
Size19 MB106 MB
Age rating4+4+
DeveloperSenstream, Inc.Vernier Software & Technology

Customer experience

Senstream

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%

Vernier Graphical Analysis

All ratings521 ratings
Positive26.9%
Neutral1.9%
Negative71.2%
Written reviews198 reviews
Positive32.3%
Neutral1.5%
Negative66.2%

Bugs and requests

Senstream

Not enough reviews yet to summarise bugs or requests.

Vernier Graphical Analysis

Reported bugs

3 issues
  • App freezes and becomes unresponsive
  • Sensor data not accurately recorded
  • Unexpected app behavior and strange visual effects

Requested features

3 requests
  • More stable and reliable performance
  • Better compatibility with older devices
  • Improved Bluetooth connectivity

In-app purchases

None

Senstream

No in-app purchases

None

Vernier Graphical Analysis

No in-app purchases

Questions

Is Senstream free?
Senstream is free to download, with no in-app purchases.
Is Vernier Graphical Analysis free?
Vernier Graphical Analysis is free to download, with no in-app purchases.
Which has better reviews, Senstream or Vernier Graphical Analysis?
Senstream is rated higher. Senstream averages 4.3 out of 5 from 3 ratings, while Vernier Graphical Analysis averages 2.1 from 521 ratings.
Do Senstream or Vernier Graphical Analysis have ads?
Neither Senstream nor Vernier Graphical Analysis shows ads.
Which is updated more often, Senstream or Vernier Graphical Analysis?
Senstream ships an update every 3 months, and Vernier Graphical Analysis every 2 months. Most recently, Senstream was updated on September 19, 2026 and Vernier Graphical Analysis on September 24, 2026.

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