CorePath 9 vs IdeaRebuild
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CorePath 9
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CorePath 9 is a study studio built around Guided Paths (Subject → Topic → Session). Each session presents one focused task—reorder steps, spot an incorrect line, match terms, check units, or write a short justification—followed by an explanation of why the answer works and why a common alternative fails. Every session requires a saved PathNote (versioned v1/v2/…), and incorrect attempts create MistakeCards that shape Revision Mode focus sets and Studio Runs.
IdeaRebuild
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IdeaRebuild helps you inspect one idea at a time. Break it into parts, mark where it fails, choose a repair strategy, rewrite it, and save a clear Rebuild Record for review.
Screenshots
Verdict
CorePath 9 and IdeaRebuild are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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.
Both ship on a similar rhythm, roughly every 9 days. The most recent releases landed on September 13, 2026 and September 10, 2026 respectively.
| Parameter | CorePath 9 | IdeaRebuild |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | Every 9 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Nhat Huy Dang Huu | Truong Pham Tuan |
In-app purchases
CorePath 9
No in-app purchases
IdeaRebuild
No in-app purchases
