Comparison

StructuraE vs Lemma Box

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

Head to head

StructuraE

Explore Space and Movement

Classroom word cards

About

StructuraE

Features

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Create spatial studies, arrange rooms, map circulation and review design choices. Learn through guided challenges, compare revisions and compose visual portfolios on your device.

About

Lemma Box

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Lemma Box is a private offline vocab desk — file word decks, lemmas, and flashcards, then find any card before the quiz.

Screenshots

StructuraE4 screens

Lemma Box4 screens

Verdict

The call

StructuraE and Lemma Box are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ScorecardNo meaningful differences

StructuraE versus Lemma Box: the parameters behind the verdict, then further details
Parameter	StructuraE	Lemma Box
Price	Free	Free
Update frequency	Every 3 weeks	—
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	13.0	13.0
Further details — not scored
Size	28 MB	59 MB
Age rating	4+	4+
Developer	Van Vinh Dinh	Vinyl Folio