Comparison

3D_NA vs Chemmory

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

3D_NA

Features
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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.

About

Chemmory

Features
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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 โ€ข Memory mode with element cards (symbol, name, atomic number, etc.) โ€ข Configurable learning scope and hints โ€ข Several hidden mini-games for variety โ€ข Full localization of element names: Polish, English, Russian, Spanish, French, German โ€ข Sound effects and light animations โ€ข Local leaderboard and stats โ€ข Works fully offline, no ads, no tracking โ€ข 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

3D_NA2 screens
Chemmory4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
3D_NA versus Chemmory: the parameters behind the verdict, then further details
Parameter3D_NAChemmory
PriceFreeFree
Update frequencyDailyโ€”
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details โ€” not scored
Size135 MB134 MB
Age rating4+4+
DeveloperNational University of SingaporeGrzegorz Kulesza

In-app purchases

None

3D_NA

No in-app purchases

None

Chemmory

No in-app purchases

Questions

Is 3D_NA free?
3D_NA is free to download, with no in-app purchases.
Is Chemmory free?
Chemmory is free to download, with no in-app purchases.
Do 3D_NA or Chemmory have ads?
Neither 3D_NA nor Chemmory shows ads.

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