StrataLab 11 vs ChainPad Junior
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StrataLab 11
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StrataLab 11 is a Grade 11 STEM studio for math, physics, and chemistry. Complete focused Lab Runs that guide reasoning and require you to write. Each run finishes by saving a student-made artifact—an explanation, a repair note, or a formula page—so your progress becomes a personal workshop notebook you can revisit and improve.
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
StrataLab 11 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 | StrataLab 11 | 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 | 29 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Trung Duc Nguyen | Hai Pham Ngoc |
In-app purchases
StrataLab 11
No in-app purchases
ChainPad Junior
No in-app purchases
Questions
Is StrataLab 11 free?
Is ChainPad Junior free?
Do StrataLab 11 or ChainPad Junior have ads?
Other comparisons
