Comparison

LockDown Browser 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

LockDown Browser

This application creates a secure browser environment for online exams, preventing access to other applications, websites, or device functions. It ensures the integrity of assessments by locking users into the exam until submission. It is compatible with specific learning systems and can be used with proctoring systems if enabled by an instructor.

Highlights
  • Locks down exam environment
  • Prevents switching applications
  • Blocks access to other URLs
  • Disables screenshots
  • Prohibits copying or printing
  • Integrates with learning systems
Read full description

LockDown Browser is a custom browser that locks down the exam environment within specific learning and assessment systems. When LockDown Browser is used during an online exam, you are unable to go to other URLs, switch applications, take screenshots, copy questions or print. It essentially locks you into the exam until it’s submitted for grading. Important: This application can only be used with the Respondus Monitor proctoring system if your instructor has enabled the use of an iPad for the exam. If your instructor hasn't enabled the use of an iPad for the exam, you will be unable to use this application with it. While LockDown Browser isn’t the most exciting app available, it does make online assessments possible. And, hey, you can download it for free. This is NOT a limited-feature version and there are NO advertisements of any type.

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

Vernier Graphical Analysis3 screens

Verdict

The call

The clearest difference is rating: Vernier Graphical Analysis at 2.1 against LockDown Browser's 1.2. Vernier Graphical Analysis also leads on review sentiment (32% vs 8%). LockDown Browser's advantage is ratings volume (4K vs 528) and iOS requirement (15.0 vs 17.7). 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

Vernier Graphical Analysis holds the better App Store score, 2.1 against 1.2. That said, the two scores are not equally well evidenced: LockDown Browser has 4K ratings behind it against 528, so its average is the more settled of the two. Written reviews point the same way: 8% of LockDown Browser's written reviews are positive against 32% of Vernier Graphical Analysis's.

UpkeepUpdate frequency

LockDown Browser ships an update every 5 weeks, Vernier Graphical Analysis every 2 months. Both last shipped on November 13, 2026.

Scorecard4 real differences · 6 level
LockDown Browser versus Vernier Graphical Analysis: the parameters behind the verdict, then further details
ParameterLockDown BrowserVernier Graphical Analysis
PriceFreeFree
Rating1.2 (4K ratings)2.1 (528 ratings) — better
Positive reviews7.5% of reviews32.0% of reviews — better
Number of ratings4K — better528
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPadiPhone, iPad — better
Requires iOS15.0 — better17.7
Further details — not scored
Size17 MB106 MB
Age rating4+4+
DeveloperRespondus Inc.Vernier Software & Technology

Customer experience

LockDown Browser

All ratings3,954 ratings
Positive4.5%
Neutral0.9%
Negative94.6%
Written reviews425 reviews
Positive7.5%
Neutral1.6%
Negative90.8%

Vernier Graphical Analysis

All ratings527 ratings
Positive26.9%
Neutral1.9%
Negative71.2%
Written reviews203 reviews
Positive32.0%
Neutral1.5%
Negative66.5%

User reviews

LockDown Browser

From 4K App Store ratings

What we love

  • 🚀 Works well on iPad
  • 🔒 Secures exams
  • 👍 Helpful for online tests

Room to improve

  • 🐛 Crashes and freezes frequently
  • 🔒 Locks down devices too aggressively
  • 👎 Unreliable and glitchy
  • 💤 Slow and unresponsive
  • 🔋 Drains device battery

Vernier Graphical Analysis

From 528 App Store ratings

What we love

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

Room to improve

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

Bugs and requests

LockDown Browser

Reported bugs

4 issues
  • Fails to load tests and quizzes
  • Prevents device power off and exit
  • Incompatible with other apps like Canvas
  • Randomly kicks users out of exams

Requested features

4 requests
  • Improved compatibility with iPads
  • Better error handling and recovery
  • Streamlined setup and onboarding
  • More user-friendly interface

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

LockDown Browser

No in-app purchases

None

Vernier Graphical Analysis

No in-app purchases

Questions

Is LockDown Browser free?
LockDown Browser 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, LockDown Browser or Vernier Graphical Analysis?
Vernier Graphical Analysis is rated higher. LockDown Browser averages 1.2 out of 5 from 4K ratings, while Vernier Graphical Analysis averages 2.1 from 528 ratings.
Do LockDown Browser or Vernier Graphical Analysis have ads?
Neither LockDown Browser nor Vernier Graphical Analysis shows ads.
Which is updated more often, LockDown Browser or Vernier Graphical Analysis?
LockDown Browser ships an update every 5 weeks, and Vernier Graphical Analysis every 2 months. Most recently, LockDown Browser was updated on November 13, 2026 and Vernier Graphical Analysis on November 13, 2026.

Other comparisons