# X-Rule Swap — Rule Transfer Analysis Lab

> Rule Transfer Analysis Lab (iPhone/iPad app by Truong Lam Xuan.)

- Source: https://appshunter.io/ios/app/x-rule-swap/id6764254453 (this page in markdown: same URL + `.md`)
- Developer: [Truong Lam Xuan](https://appshunter.io/developer/1895704898)
- Category: Education, Entertainment
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 32 MB
- Languages: American English
- Released: 2026-04-28
- Data updated: 2026-08-15
- User reviews in markdown: https://appshunter.io/ios/app/x-rule-swap/id6764254453/reviews.md

## What is X?

X-Rule Swap is a focused reasoning studio for one task: testing whether a rule still works when moved into a different system.

Instead of collecting freeform notes, X-Rule Swap guides you through a structured method:

- compare source and target systems
- run a six-dimension support-gap audit
- build a required Failure Chain
- classify the break and decide a transfer verdict
- Each completed session becomes a durable Dependency Card with version history, so your analysis can improve over time without losing earlier thinking.

Use Guided Swap with curated local cases, explore the Case Library, or run Free Compare for your own scenarios. X-Rule Swap helps you diagnose why transfer fails by revealing hidden assumptions, missing support, and resulting breakdowns.


## Version history (last 1 release)

### 1.0.0 — 2026-04-28

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*