EMD PTE vs DAC App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EMD PTE
This comprehensive mobile reference work provides detailed information on all chemical elements. It features a molar mass calculator, interactive visualizations, and offline access, making it an indispensable tool for students, educators, and chemistry enthusiasts.
- Detailed element information
- Visualized element properties
- Molar mass calculator
- Offline access
- Multi-language support
- Element comparison function
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The EMD PSE App is the ultimate tool for every friend of chemistry – whether pupil or teacher, university student or professor, amateur or expert, hobbyist or technician. Our app is the must-have of digital periodic tables. Get informed with our mobile reference work, any time, with ease, offline and in detail, in the usual straightforward, user-friendly way. Download now free of charge and start experimenting. New features in the latest version: - Additional translations: Chinese (simplified), Portuguese, and Russian. - Users can now change the language directly in the app - New function for direct comparison of two elements - A separate keypad for the molar mass calculator makes formulas easier to enter - Headline and breadcrumbs added for improved orientation - Filtering option and optimized usability for the ranking list of properties - Update of element master data - Update to current operating system versions - Improved touch support for diagrams - Museum mode All existing features: - All important information about the elements: atomic number, valence electrons, oxidation state, electronegativity according to Allred-Rochow and Pauling, atomic mass, boiling point, melting point, atomic radius, density, history, discoverer, classification, crystalline structure type, electron configuration, ionization energy, isotopic composition, state of matter, hardness according to Mohs, basic state, oxidation numbers, percentage of mass in Earth’s crust, year of discovery, half-life, and much more. - Visualized element properties: atomic radius, atomic radius graphic, electronegativity (according to Allred-Rochow and Pauling), ionization energy, relative atomic mass, state of matter, ranking list of properties, discovery, classifications. - Molar mass calculator: simple entry field for chemical formulas. Calculate molar mass simply and quickly. - Offline use. No Internet needed. All contents in one app. - Streamlined handling of access rights. - Interactive operation: smart operating elements and numerous selection options. - Variety of languages: German, English, French and Spanish.
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 review sentiment: EMD PTE at 90% against DAC App's 20%. EMD PTE also leads on rating (4.6 vs 1.8) and ratings volume (124 vs 16). On price, update cadence, 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.
EMD PTE holds the better App Store score, 4.6 against 1.8. That said, the two scores are not equally well evidenced: EMD PTE has 124 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 90% of EMD PTE's written reviews are positive against 20% of DAC App's.
EMD PTE ships an update every 8 months, DAC App every 12 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | EMD PTE | DAC App |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (124 ratings) — better | 1.8 (16 ratings) |
| Positive reviews | 90.5% of reviews — better | 20.0% of reviews |
| Number of ratings | 124 — better | 16 |
| Update frequency | Every 8 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 18 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Merck KGaA (Darmstadt, Germany) | Educational Testing Service |
Customer experience
EMD PTE
DAC App
Bugs and requests
EMD PTE
Reported bugs
2 issues- Incorrect atomic radius data for some elements
- Glitches when switching between screens
Requested features
4 requests- Add search functionality
- Provide more customization options
- Include isotope and mass data
- Improve navigation between elements
DAC App
Not enough reviews yet to summarise bugs or requests.
In-app purchases
EMD PTE
No in-app purchases
DAC App
No in-app purchases
