VN vs ChainPad Junior
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VN
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VN Physics 7 is an offline study companion for Vietnamese Grade 7 students. It offers clear physics lessons, topic-based quizzes, mock exams, and engaging mini-games. Students can track learning streaks, earn badges, and review quiz history to improve exam readiness anytime, anywhere.
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
The clearest difference is update cadence: ChainPad Junior at weekly against VN's every 2 months. 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.
VN ships an update every 2 months, ChainPad Junior weekly. Both last shipped on September 13, 2026.
| Parameter | VN | ChainPad Junior |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Weekly — better |
| 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 | 22 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Dung Do Tri | Hai Pham Ngoc |
In-app purchases
VN
No in-app purchases
ChainPad Junior
No in-app purchases
