Math Proof Studio vs ChainPad Junior
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
ChainPad Junior
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ChainPad Junior is a tool-like reasoning app for Grades 1–6 with one focused mode: Emoji Logic Chain. Each chain is a single-use thinking prompt where kids connect emoji ideas and write a short explanation. Every session saves a Reason Card, building a personal, on-device notebook of how they reasoned over time.
Screenshots
Verdict
Math Proof Studio and ChainPad Junior 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 | Math Proof Studio | ChainPad Junior |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 18 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Phung Thi Ha | Hai Pham Ngoc |
In-app purchases
Math Proof Studio
No in-app purchases
ChainPad Junior
No in-app purchases
Questions
Is Math Proof Studio free?
Is ChainPad Junior free?
Do Math Proof Studio or ChainPad Junior have ads?
Other comparisons
