Physics 9 vs ExplainByExample
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Physics 9
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Physics 9 is a fully offline app for Grade 9 students, bundling lessons, practice, assessments, mini-games, and progress tracking. The app runs without backend, audio, or internet, and saves XP, streaks, and coins locally.
ExplainByExample
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ExplainByExample helps you explore ideas by creating your own examples, non-examples, and tricky cases. Write a short explanation and save each session as a read-only card. Browse your cards, filter them, and revisit ideas by creating new versions over time.
Screenshots
Verdict
The clearest difference is device support: Physics 9 at 3 against ExplainByExample's —. On price, in-app purchases and iOS requirement 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 | Physics 9 | ExplainByExample |
|---|---|---|
| Price | Free | Free |
| Ads | No | — |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | — |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 20 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Dung Nguyen Tan | Dat Tran Nam |
In-app purchases
Physics 9
No in-app purchases
ExplainByExample
No in-app purchases
