Von Neumann entropy vs Math Proof Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Von Neumann entropy
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This app represents von Neumann entropy for density matrix. The density matrix represents the mixed states of two states.
Math Proof Studio
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Math Proof Studio is a proof-writing notebook built around ownership of your reasoning record. Write in a text-first editor, preserve every revision in a linked chain, and run deterministic protocol checks (not grades). Curate selected work into exportable Evidence Packs for sharing or archival.
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Verdict
The clearest difference is iOS requirement: Math Proof Studio at 13.0 against Von Neumann entropy's 18.0. On price, ads, in-app purchases and device support 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.
| Parameter | Von Neumann entropy | Math Proof Studio |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Sungjun Kim | Phung Thi Ha |
In-app purchases
Von Neumann entropy
No in-app purchases
Math Proof Studio
No in-app purchases
Questions
Is Von Neumann entropy free?
Is Math Proof Studio free?
Do Von Neumann entropy or Math Proof Studio have ads?
Other comparisons
