3D_NA vs Chemmory
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
3D_NA
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This application is an aid for students to visualise nucleotides using augemted reality. This is to provide students a three-dimensional perspective of the nucleotides using examples of adenine and thymine. Additionally, students can manipulate the image markers to visualise an A:T base-pair. This is for use in a basic biology course.
Chemmory
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Chemmory is a simple, engaging memory game that helps you learn chemical elements. Practice names, symbols, atomic numbers, valencies, atomic masses and more โ you decide what to study. A unique hint system not only makes matching easier, it also reinforces recall so you remember faster. HOW IT WORKS Flip cards as in classic memory and match the correct pairs. Choose the content you want (e.g., names + symbols, valency, mass), and pick how much assistance you get from hints. Your best runs are saved locally so you can beat your own records. FEATURE HIGHLIGHTS โข Memory mode with element cards (symbol, name, atomic number, etc.) โข Configurable learning scope and hints โข Several hidden mini-games for variety โข Full localization of element names: Polish, English, Russian, Spanish, French, German โข Sound effects and light animations โข Local leaderboard and stats โข Works fully offline, no ads, no tracking โข Supports older iPhones WHO IS IT FOR? Students preparing for tests, teachers looking for a quick warm-up, and younger players who enjoy bite-sized learning. Use Chemmory for daily practice, quick quizzes, or revising the periodic table on the go. PRIVACY Chemmory works offline and does not collect personal data. Scores and settings are stored on your device only. Have fun and happy learning!
Screenshots
Verdict
3D_NA and Chemmory are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | 3D_NA | Chemmory |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily | โ |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details โ not scored | ||
| Size | 135 MB | 134 MB |
| Age rating | 4+ | 4+ |
| Developer | National University of Singapore | Grzegorz Kulesza |
In-app purchases
3D_NA
No in-app purchases
Chemmory
No in-app purchases
Questions
Is 3D_NA free?
Is Chemmory free?
Do 3D_NA or Chemmory have ads?
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