# Senstream vs Vernier Graphical Analysis

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.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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.

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.

## The numbers

| Metric | Senstream | Vernier Graphical Analysis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/senstream/id1297743398/reviews)** | [2.1 (521 ratings)](https://appshunter.io/ios/app/vernier-graphical-analysis/id1385963326/reviews) |
| Number of ratings | 3 | **521** |
| Positive reviews | — | 32.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 19 MB | 106 MB |
| Requires iOS | **17.6** | 17.7 |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Senstream, Inc.](https://appshunter.io/developer/1297743397) | [Vernier Software & Technology](https://appshunter.io/developer/389784250) |

## What reviewers say

### Senstream

[App page](https://appshunter.io/ios/app/senstream/id1297743398)

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

**In-app purchases:** none


### Vernier Graphical Analysis

[App page](https://appshunter.io/ios/app/vernier-graphical-analysis/id1385963326)

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:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Helpful for physics/chemistry labs
- 👍 Easy to use interface
- 💡 Useful data analysis features

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🔋 Drains battery quickly
- 🤯 Bizarre and unexplained glitches
- 🤢 Caused health issues for some users

**Reported bugs**

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

**Requested features**

- More stable and reliable performance
- Better compatibility with older devices
- Improved Bluetooth connectivity


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*