PN vs SourceLens
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PN
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Context Switch is an offline interpretation studio. You keep one Base Input unchanged, re-read it under different Context Frames, and save a structured reasoning artifact called a Context Card. Use Context Switch to sharpen context awareness, assumption control, and wording precision in a calm, text-first workflow. Sessions guide you through meaning shift, stable core, unsafe assumption, interpretation boundary, and final context rule. Everything stays local on your device. No account, no ads, no cloud sync.
SourceLens
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SourceLens helps you examine sources through structured cards, claim notes, quote links, comparison views, and case file packets. Write your own analysis, connect related cards, and export organized dossiers for study or review.
Screenshots
Verdict
PN and SourceLens 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 | PN | SourceLens |
|---|---|---|
| Price | Free | Free |
| 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 | 33 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Phuong Nguyen Van | Canh Nguyen Xuan |
In-app purchases
PN
No in-app purchases
SourceLens
No in-app purchases
