TERC EarthLabs vs DAC App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TERC EarthLabs
This app offers free high school Earth science curriculum units with interactive visualizations, videos, and hands-on labs. It allows users to run Flash-based videos and interactives on their iPad for engaging science education.
- Interactive visualizations
- Video content
- Hands-on labs
- Flash-based interactives
- Curriculum units
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EarthLabs (http://serc.carleton.edu/earthlabs) is a free set of high school Earth science curriculum units developed by TERC that engage students through a variety of modes including interactive visualizations, video, and hands-on labs. Download the EarthLabs App to run many of the Flash-based videos and interactives on your iPad.
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.
Verdict
The clearest difference is rating: TERC EarthLabs at 5.0 against DAC App's 1.8. TERC EarthLabs also leads on review sentiment (40% vs 20%) and iOS requirement (8.0 vs 15.0). DAC App's advantage is update cadence (every 12 months vs every 53 months) and ratings volume (16 vs 1). On price, ads, in-app purchases and monetization model 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.
TERC EarthLabs holds the better App Store score, 5.0 against 1.8. That said, the two scores are not equally well evidenced: DAC App has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 40% of TERC EarthLabs's written reviews are positive against 20% of DAC App's.
TERC EarthLabs ships an update every 53 months, DAC App every 12 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | TERC EarthLabs | DAC App |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 1.8 (16 ratings) |
| Positive reviews | 40.0% of reviews — better | 20.0% of reviews |
| Number of ratings | 1 | 16 — better |
| Update frequency | Every 53 months | Every 12 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPad |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 40 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | TERC, Inc. | Educational Testing Service |
Customer experience
TERC EarthLabs
DAC App
In-app purchases
TERC EarthLabs
No in-app purchases
DAC App
No in-app purchases
Questions
Is TERC EarthLabs free?
Is DAC App free?
Which has better reviews, TERC EarthLabs or DAC App?
Do TERC EarthLabs or DAC App have ads?
Which is updated more often, TERC EarthLabs or DAC App?
Other comparisons
