# Vernier Graphical Analysis GW vs TestNav

The clearest difference is rating: Vernier Graphical Analysis GW at 2.4 against TestNav's 1.6. Vernier Graphical Analysis GW also leads on update cadence (every 3 months vs every 8 months) and device support (3 vs 1). TestNav's advantage is monetization model (free vs free with in-app purchases). On price, review sentiment, ratings volume and ads there is nothing between them.

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

Vernier Graphical Analysis GW holds the better App Store score, 2.4 against 1.6. Both are backed by a comparable volume of ratings — 158 and 104 respectively. Written reviews point the same way: 27% of Vernier Graphical Analysis GW's written reviews are positive against 24% of TestNav's.

Vernier Graphical Analysis GW ships an update every 3 months, TestNav every 8 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Vernier Graphical Analysis GW | TestNav |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (158 ratings)](https://appshunter.io/ios/app/vernier-graphical-analysis-gw/id522996341/reviews)** | [1.6 (104 ratings)](https://appshunter.io/ios/app/testnav/id818779127/reviews) |
| Number of ratings | **158** | 104 |
| Positive reviews | **26.7% of reviews** | 23.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 20 MB | 2 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vernier Software & Technology](https://appshunter.io/developer/389784250) | [Pearson](https://appshunter.io/developer/1732560308) |

## What reviewers say

### Vernier Graphical Analysis GW

[App page](https://appshunter.io/ios/app/vernier-graphical-analysis-gw/id522996341)

This application allows science students to collect, graph, and analyze data from various sensors. It supports multiple data-collection modes, offers advanced analysis tools, and enables data sharing for lab reports and further spreadsheet analysis.

**Highlights:** Multi-sensor data collection, Time, event, and drop counting modes, Graphing and table view, Data analysis and statistics, Curve fitting, Data export (.CSV), Manual data entry

**Features:** Vision Pro support

**In-app purchases:** none


### TestNav

[App page](https://appshunter.io/ios/app/testnav/id818779127)

This application provides a secure and reliable platform for delivering educational tests online. It ensures test items are presented consistently across devices.

**Highlights:** Secure test delivery, Reliable online platform, Consistent test item presentation, iOS device compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 App is available for iPad
- 👍 Some users find it easy to use
- 👍 Some users find it helpful for school
- 👍 Some users find it 'super good' or 'amazing'

**What reviewers complain about**

- 😞 App is described as 'trash' or 'garbage'
- 😞 Frequent crashes and bugs reported
- 😞 Users experience extreme boredom and frustration
- 😞 App is perceived as a waste of time
- 😞 Some users report it 'never works'

**Reported bugs**

- Open response boxes never work properly
- Drag and drop not working
- Permission errors for speech, mic, etc.
- App crashes all the time
- App doesn't work

**Requested features**

- Way to lower brightness
- Actual Dark Mode
- Allow access to Accessibility Shortcuts menu during testing
- Enable/disable inverted colors during testing
- Enable zoom during testing


## Frequently asked questions

### Is Vernier Graphical Analysis GW free?

Vernier Graphical Analysis GW is free to download, with no in-app purchases.

### Is TestNav free?

TestNav is free to download, with no in-app purchases.

### Which has better reviews, Vernier Graphical Analysis GW or TestNav?

Vernier Graphical Analysis GW is rated higher. Vernier Graphical Analysis GW averages 2.4 out of 5 from 158 ratings, while TestNav averages 1.6 from 104 ratings.

### Do Vernier Graphical Analysis GW or TestNav have ads?

Neither Vernier Graphical Analysis GW nor TestNav shows ads.

### Which is updated more often, Vernier Graphical Analysis GW or TestNav?

Vernier Graphical Analysis GW ships an update every 3 months, and TestNav every 8 months. Most recently, Vernier Graphical Analysis GW was updated on November 1, 2026 and TestNav on November 1, 2026.

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