StructuraE vs Lemma Box
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StructuraE
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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.
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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| 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 |
In-app purchases
StructuraE
No in-app purchases
Lemma Box
No in-app purchases
Questions
Is StructuraE free?
Is Lemma Box free?
Do StructuraE or Lemma Box have ads?
Other comparisons
