Num Fu vs DAC App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Num Fu
Master basic division facts through engaging educational games. This app utilizes proven strategies to help students build essential number sense and fluency.
- Master division facts
- Educational games
- ORIGO Education strategies
- Number sense development
- Student-focused learning
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Practise the art of Num Fu while mastering basic division facts. Based on ORIGO Education's division strategies, Num Fu allows students to master important number facts while playing fun educational games.
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: Num Fu at 2.5 against DAC App's 1.8. Num Fu also leads on device support (3 vs 1) and iOS requirement (6.0 vs 15.0). DAC App's advantage is ratings volume (16 vs 2). 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.
Num Fu holds the better App Store score, 2.5 against 1.8. That said, the two scores are not equally well evidenced: DAC App has 16 ratings behind it against 2, so its average is the more settled of the two.
| Parameter | Num Fu | DAC App |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) — better | 1.8 (16 ratings) |
| Positive reviews | — | 20.0% of reviews |
| Number of ratings | 2 | 16 — better |
| Update frequency | — | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 6.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 224 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | ORIGO Education | Educational Testing Service |
Customer experience
Num Fu
DAC App
In-app purchases
Num Fu
No in-app purchases
DAC App
No in-app purchases








