Comparison

SPARKvue 4 vs Desmos Test Mode

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

Head to head
About

SPARKvue 4

Collect, visualize, and analyze real-time sensor data for STEM education. Wirelessly connect sensors, capture images for analysis, and build custom displays. Share live data and create electronic lab journals for collaborative learning.

Highlights
  • Live sensor data collection
  • Wireless Bluetooth sensor connection
  • Multiple data display options
  • Built-in statistical analysis tools
  • Interactive lab activities
  • Electronic student lab journals
  • Live data sharing
Features
Read full description

SPARKvue is a popular data collection, visualization and analysis application for STEM learning. SPARKvue enables wireless data collection and live data sharing with anyone in the world to unleash the learning experience. Capture data from the world around you: ● Graph live sensor data from the world around you in real time—pH, temperature, force, carbon dioxide and much more! ● Connect PASCO’s new wireless Bluetooth Smart sensors directly to your iPad or iPhone—just turn on the sensor and connect right in the app. Nothing could be easier! ● Connect any of 80+ PASCO sensors via our Bluetooth interfaces ● Capture images with the integrated cameras and use SPARKvue’s image analysis capabilities ● Collect and display live data using the onboard accelerometer and sound sensors Key features: ● Measure and display sensor data in real time ● Display data in a graph, bar graph, analog meter, digits or table ● Build custom displays--mix display types, images, videos, text and assessments (Build feature not available on iPhones due to screen size) ● Analyze data with built-in statistical tools (min, max, mean, standard deviation, count and area) ● Select from 8 different curve fits including linear and quadratic ● Pinch and zoom manipulation of graphs ● Capture and annotate images ● Add videos, photos and GIFs ● Includes 14 preloaded SPARKlab interactive lab activities, plus over 80 more available free online ● Create and export electronic student lab journals ● Integrated with cloud-based file sharing services such as Dropbox and more ● Add assessments including multiple choice, drop down lists, and free text response (not available on iPhones) ● Live data sharing and session sharing across devices--with each student capturing the shared data on their own device for further analysis. Share with the class or even across geographies-in real time. Designed for science learning: ● Convenient annotation, snapshot and electronic journaling are among the features supporting peer dialogue, classroom presentations, and assessment. ● With SPARKlab interactive lab activities, teachers can blend instructional content, live data collection & analysis, reflection prompts and more, all completely within the SPARKvue environment. Use PASCO free SPARKlabs or build your own! Common user experience across platforms: SPARKvue is a member of PASCO’s SPARKscience family, providing the same user experience across all technology environments: ● tablets ● phones ● computers ● interactive whiteboards No matter what the mix of technology is in the classroom or the school, teachers and students all share the same user experience--placing the learning experience in the forefront and simplifying classroom management. Where do I get sensors? PASCO offers over 80 sensors to measure almost anything in the world around you in life, earth and physical sciences plus out in the field exploring the environment. See our newest wireless sensors to measure Temperature, pH, Pressure and Force/Acceleration—all with no need for an expensive interface or wires. Just turn them on and collect data! For purchasing information, see http://pasco.com/sparkvue Languages: SPARKvue supports 28 languages. See http://pasco.com/sparkvue for details. Support: SPARKvue has an integrated help system, just a touch away with the help icon. Further assistance with SPARKvue or any PASCO product is available free from PASCO Teacher Support. About PASCO Scientific: PASCO Scientific brings a rich history of innovation and support for science education, with over 50 years of service to educators around the world.

About

Desmos Test Mode

This app provides restricted versions of graphing and scientific calculators designed to meet exam requirements. It allows users to practice for specific state or national assessments by selecting the appropriate test mode. Full, unrestricted calculator features are available in separate applications.

Highlights
  • Exam-compliant calculator modes
  • Graphing capabilities
  • Scientific calculator functions
  • Data tables and statistics
  • Interactive sliders
  • Points of interest on graphs
Read full description

** These are restricted versions of the Desmos Calculators that comply with exam requirements. To prepare for specific state or national assessments, select the corresponding test from the menu in the app. Find out whether Desmos is used for your test at www.desmos.com/testing. If you’d like to use full, unrestricted versions of the calculators, download the Scientific or Graphing Calculator apps or visit www.desmos.com. ** At Desmos, we imagine a world of universal math literacy where math is accessible and enjoyable for all students. To that end, we’ve built simple yet powerful calculators. They’re intuitive, beautiful, and completely free. - - - Graphing Calculator Features: Graphing: Plot polar, Cartesian, and parametric graphs. There’s no limit to how many expressions you can graph at one time—and you don’t even need to enter expressions in y= form! Sliders: Adjust values interactively to build intuition, or animate any parameter to visualize its effect on the graph. Tables: Input and plot data, or create an input-output table for any function. Statistics: Use regressions to find the lines (or other curves!) that best fit your data. Zooming: Scale the axes independently or at the same time with the pinch of two fingers, or edit the window size manually to get the perfect view of your graph. Points of Interest: Touch a curve to show its maximum and minimum values, intercepts, and points of intersection with other curves. Tap any of these points of interest to see their coordinates. Hold and drag along a curve to see the coordinates change under your finger as you trace. - - - Scientific Calculator Features: Variables: Assign values to variables that you can use in other expressions. Since all of your work is held in the expressions list, you can compute a value once and use it in many places simultaneously. Take advantage of the “ans” key, which always stores the value of the previous expression. Arithmetic: Beyond the four basic operations, the scientific calculator also supports exponentiation, radicals, absolute value, logarithms, rounding, and percentages. Trigonometry: Evaluate the fundamental trigonometric functions and their inverses using either radians or degrees for angle measure. Statistics: Compute the mean and standard deviation (sample or population) of a list of data. Combinatorics: Count combinations and permutations and calculate factorials. - - - Four-Function Calculator Features: Simple and Beautiful: Just the basics done right. Add, subtract, multiply, divide, and take square roots. Multiple Expressions: Unlike many four-function calculators, all of your previous work remains visible on the screen. The special “ans” key always holds the value of the previous computation (and updates automatically!), so you never have to remember or copy a result.

Screenshots

SPARKvue 44 screens
Desmos Test Mode4 screens

Verdict

The call

The clearest difference is review sentiment: SPARKvue 4 at 46% against Desmos Test Mode's 17%. SPARKvue 4 also leads on rating (1.9 vs 1.6) and iOS requirement (13.0 vs 16.0). On price, ratings volume, update cadence and ads 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

SPARKvue 4 holds the better App Store score, 1.9 against 1.6. Both are backed by a comparable volume of ratings — 630 and 370 respectively. Written reviews point the same way: 46% of SPARKvue 4's written reviews are positive against 17% of Desmos Test Mode's.

UpkeepUpdate frequency

SPARKvue 4 ships an update every 2 months, Desmos Test Mode every 4 months. The most recent releases landed on November 10, 2026 and November 11, 2026 respectively.

Scorecard3 real differences · 7 level
SPARKvue 4 versus Desmos Test Mode: the parameters behind the verdict, then further details
ParameterSPARKvue 4Desmos Test Mode
PriceFreeFree
Rating1.9 (630 ratings) — better1.6 (370 ratings)
Positive reviews45.5% of reviews — better16.5% of reviews
Number of ratings630 — better370
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size91 MB6 MB
Age rating4+4+
DeveloperPASCO scientificDesmos

Customer experience

SPARKvue 4

All ratings638 ratings
Positive21.6%
Neutral2.0%
Negative76.3%
Written reviews301 reviews
Positive45.5%
Neutral3.0%
Negative51.5%

Desmos Test Mode

All ratings370 ratings
Positive14.3%
Neutral2.4%
Negative83.2%
Written reviews139 reviews
Positive16.5%
Neutral5.0%
Negative78.4%

User reviews

SPARKvue 4

From 630 App Store ratings

What we love

  • 🚀 Saved my life
  • 🚀 Cured my cancer
  • 🚀 Helped me get a girlfriend
  • 🚀 Gave me superpowers
  • 🚀 Transported me to Syria

Room to improve

  • 🐛 Crashed my computer
  • 🐛 Killed my family
  • 🐛 Gave me testicular cancer
  • 🐛 Asked for my location
  • 🐛 Turned me into a communist

Desmos Test Mode

From 370 App Store ratings

What we love

  • 🚀 Useful app for tests
  • 🔒 Secure calculator mode
  • 👍 Free alternative to expensive calculators

Room to improve

  • 🐛 Buggy and unstable
  • 🔒 Overly restrictive app lock
  • 👎 Poor user interface and usability

Bugs and requests

SPARKvue 4

Reported bugs

5 issues
  • Caused spontaneous combustion
  • Erased all my data
  • Triggered a nuclear meltdown
  • Turned my dog into a salad bowl
  • Gave me a permanent wedgie

Requested features

5 requests
  • Add free Fortnite V-Bucks
  • Integrate with Tinder
  • Allow users to summon demons
  • Provide a self-destruct button
  • Add support for teleportation

Desmos Test Mode

Reported bugs

3 issues
  • App crashes and freezes during use
  • Unexpected phone behavior and lockouts
  • Compatibility issues across different devices and OS versions

Requested features

3 requests
  • Add customization options for the calculator interface
  • Improve compatibility with older devices
  • Provide more flexible calculator modes during tests

In-app purchases

None

SPARKvue 4

No in-app purchases

None

Desmos Test Mode

No in-app purchases

Questions

Is SPARKvue 4 free?
SPARKvue 4 is free to download, with no in-app purchases.
Is Desmos Test Mode free?
Desmos Test Mode is free to download, with no in-app purchases.
Which has better reviews, SPARKvue 4 or Desmos Test Mode?
SPARKvue 4 is rated higher. SPARKvue 4 averages 1.9 out of 5 from 630 ratings, while Desmos Test Mode averages 1.6 from 370 ratings.
Do SPARKvue 4 or Desmos Test Mode have ads?
Neither SPARKvue 4 nor Desmos Test Mode shows ads.
Which is updated more often, SPARKvue 4 or Desmos Test Mode?
SPARKvue 4 ships an update every 2 months, and Desmos Test Mode every 4 months. Most recently, SPARKvue 4 was updated on November 10, 2026 and Desmos Test Mode on November 11, 2026.

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