Vernier Graphical Analysis GW vs DAC App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Vernier Graphical Analysis GW
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.
- 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
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Graphical Analysis™ GW is a tool for science students to collect, graph, and analyze data from Vernier Go Wireless® sensors. Sensor data-collection support: • Vernier Go Wireless® Temp and Go Wireless pH sensors • Vernier Go Wireless Heart Rate and Go Wireless Exercise Heart Rate monitors • Vernier LabQuest® sensors used with Go Wireless Link or LabQuest Stream interfaces • Basic support for some Vernier Go Direct® Sensors • NODE (by Variable Inc.) sensor support Additional experiment options: • Data Sharing via Wi-Fi connection to LabQuest 2 or Logger Pro® 3 • Built-in Sensors (accelerometers) • Manual Entry Note: Sensor data collection and Data Sharing require the purchase of hardware from Vernier Software & Technology. Built-in sensor and 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, and Drop Counting data-collection modes • Configurable data-collection rate and duration for time-based data collection • 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 • 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 • Pinch to scale graphs Key Features - Collaboration and Sharing • 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® Vernier Software & Technology has over 35 years of experience in providing effective learning resources for understanding experimental data in science and math classrooms. Graphical Analysis GW is a part of the extensive system of sensors, interfaces, and data-collection software from Vernier for science and STEM education.
DAC App
This free application simplifies the recording of student audio responses for specific AP exams. It streamlines the process for both students and proctors, and automatically uploads audio files for school staff. Designed for use on school-issued iPads.
- Record audio responses for AP exams
- Simplify recording process
- Intuitive interface for students
- Streamline post-exam tasks
- Direct upload of audio files
- Designed for school-owned iPads
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The Digital Audio Capture (DAC) app is a free app developed by College Board and ETS to use for recording students’ audio responses for the AP Music Theory Exam and AP French, German, Italian, and Spanish Language and Culture Exams. This app has been developed to simplify the recording process for students and proctors, utilizing current technology that is intuitive to most students. It streamlines post-exam tasks for school staff by directly uploading student audio files after recording. School staff will follow the instructions in the 2025-26 AP Exam Instructions book to administer an exam using the DAC app. NOTE: The DAC app is limited for use on school-owned and -controlled iPad tablets (iOS 15.0 and above). Schools must update to the 2026 version of the DAC app; previous versions of the app will not work in 2026.
Screenshots
Verdict
The clearest difference is rating: Vernier Graphical Analysis GW at 2.4 against DAC App's 1.8. Vernier Graphical Analysis GW also leads on update cadence (every 3 months vs every 12 months) and ratings volume (158 vs 16). DAC App's advantage is monetization model (free vs free with in-app purchases). On price, review sentiment, 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
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 1.8. That said, the two scores are not equally well evidenced: Vernier Graphical Analysis GW has 158 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 27% of Vernier Graphical Analysis GW's written reviews are positive against 20% of DAC App's.
Vernier Graphical Analysis GW ships an update every 3 months, DAC App every 12 months. The most recent releases landed on September 20, 2026 and June 1, 2026 respectively.
| Parameter | Vernier Graphical Analysis GW | DAC App |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (158 ratings) — better | 1.8 (16 ratings) |
| Positive reviews | 26.7% of reviews — better | 20.0% of reviews |
| Number of ratings | 158 — better | 16 |
| Update frequency | Every 3 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 20 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Vernier Software & Technology | Educational Testing Service |
Customer experience
Vernier Graphical Analysis GW
DAC App
In-app purchases
Vernier Graphical Analysis GW
No in-app purchases
DAC App
No in-app purchases
Questions
Is Vernier Graphical Analysis GW free?
Is DAC App free?
Which has better reviews, Vernier Graphical Analysis GW or DAC App?
Do Vernier Graphical Analysis GW or DAC App have ads?
Which is updated more often, Vernier Graphical Analysis GW or DAC App?
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