TerraPath 9 vs WhyChain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TerraPath 9
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TerraPath 9 is a Grade 9 geography learning studio built around writing and reflection. Each session asks students to reason through prompts, explain ideas in their own words, and save FieldNotes. Incorrect answers create MistakeCards that capture misconceptions and corrected rules for later review.
WhyChain
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WhyChain helps you explore one issue, belief, or decision through a guided cause chain. Review each link, mark the weakest point, choose a grounded ending, and save a read-only card for later reflection.
Screenshots
Verdict
TerraPath 9 and WhyChain 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 | TerraPath 9 | WhyChain |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Daily |
| 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 | 28 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Ngoc Anh Le Thi | Serhat Kart |
In-app purchases
TerraPath 9
No in-app purchases
WhyChain
No in-app purchases
