Math Explorers vs DET
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Math Explorers
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Math Explorers - A Fun & Engaging Math Adventure for Kids! Learning math has never been this exciting! Math Explorers is an interactive educational app designed to make learning addition, subtraction, multiplication, and division fun and easy for kids. With a variety of puzzles, mini-games, and interactive lessons, young learners can strengthen their math skills while enjoying every step of the way!
DET
This app facilitates the secure setup for a language proficiency exam. It guides users through submitting identification, scanning their face and ID, and performing room and ear scans. The app also configures your phone to record your computer during the test.
- Submit ID information
- Scan face and ID
- Complete room scan
- Perform ear scan
- Set up phone for computer recording
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The Duolingo English Test (DET) mobile app provides a stable, secure test setup experience. It does not replace the desktop app for taking the test itself. Test takers will use the app to: Submit their ID information Scan their face and ID Complete their room scan and ear scan Set up their phone to record their computer
Screenshots
Verdict
The clearest difference is ads: DET at none against Math Explorers's shown. DET also leads on update cadence (weekly vs every 6 weeks). Math Explorers's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price 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.
Math Explorers ships an update every 6 weeks, DET weekly. Both last shipped on October 28, 2026.
| Parameter | Math Explorers | DET |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.1 (33 ratings) — better |
| Positive reviews | — | 25.8% of reviews |
| Number of ratings | — | 33 — better |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 112 MB | 99 MB |
| Age rating | 4+ | 4+ |
| Developer | DONKEY BYTE | Duolingo, Inc |
In-app purchases
Math Explorers
No in-app purchases
DET
No in-app purchases
