Comparison

DevSnap vs HeaderX

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

DevSnap

Features
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DevSnap turns technical screenshots into clean, reusable developer notes. Import a screenshot, capture with the camera, or paste text or an image. Text Scan is selected by default and recognizes code, logs, JSON, stack traces, and terminal output on your device. It works offline and does not upload your input to the DevSnap transform service. Need richer structure? Switch to optional AI Transform to turn a selected image into organized Markdown, plain text, a summary, or a Mermaid diagram. DevSnap clearly identifies this cloud-processing mode before upload. See the result before you scan: - Open built-in JSON, TypeScript error, and npm log examples - Preview finished results without granting Photos access - Examples do not enter History or use AI Transform credits Use every result: - Copy cleaned text with one tap - Export Markdown or a language-specific source file - Create a polished Share Card from a cleaned excerpt - Share Cards exclude the original screenshot by default - Render Markdown as a readable document, then edit its source - Rename, favorite, search, and reopen saved snippets Your searchable history is stored locally on your device. No account is required. DevSnap does not use your content for advertising or tracking. AI Transform is optional and requires an internet connection. When enabled, the selected image, transform setting, and an app-generated device identifier are sent to DevSnap's processing service.

About

HeaderX

Features
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HeaderX injects custom HTTP request headers into your Safari browsing session โ€” the essential companion for web developers, API testers, and QA engineers. Point HeaderX at your development environment, define your headers once, and flip them on whenever you need them. No proxy setup, no configuration files, no leaving the browser. DEFINE HEADERS AS JSON Describe your headers in a simple JSON editor โ€” paste an entire set at once: {"X-Debug-Mode": "enabled", "Authorization": "Bearer dev-token"} Or use the array format to keep headers saved but individually switched off. TWO VIEWS, ONE TOGGLE Edit as raw JSON or flip to List view, where every header gets its own checkbox. The master toggle in the corner turns everything on or off instantly โ€” your configuration stays saved either way. REUSABLE PROFILES Save named header sets โ€” one per project, environment, or test scenario โ€” and switch between them in two clicks. FEATURES โ€ข One-tap master toggle โ€ข JSON editor and checkbox list views โ€ข Per-header enable/disable โ€ข Named profiles for quick switching โ€ข Settings persist across browser restarts โ€ข Works in Private Browsing (optional) GOOD TO KNOW Standard header names (Authorization, Accept-Language, User-Agent, and other HTTP-spec headers) are applied to all requests through Safari's native rule engine. Custom header names (X-My-Header and similar) are applied to fetch and XHR requests made by web pages โ€” a Safari platform constraint on custom names in network rules. For typical API-debugging workflows, this covers exactly the requests you care about. Headers apply to every site while the toggle is on โ€” remember to switch off when you're done testing, especially with authentication headers. PRIVACY FIRST Everything stays on your device. HeaderX collects no data, phones home to no one, and contains no analytics. What you configure is nobody's business but yours.

Screenshots

DevSnap4 screens
HeaderX4 screens

Verdict

The call

The clearest difference is device support: HeaderX at 4 against DevSnap's 1. HeaderX also leads on iOS requirement (15.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DevSnap ships an update weekly, HeaderX every 8 days. The most recent releases landed on September 21, 2026 and September 16, 2026 respectively.

Scorecard2 real differences ยท 4 level
DevSnap versus HeaderX: the parameters behind the verdict, then further details
ParameterDevSnapHeaderX
PriceFreeFree
Update frequencyWeekly โ€” betterEvery 8 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad, iPod, Mac โ€” better
Requires iOS18.015.0 โ€” better
Further details โ€” not scored
Size2 MB1 MB
Age rating4+4+
DeveloperAICreatorGyuman Kim

In-app purchases

None

DevSnap

No in-app purchases

None

HeaderX

No in-app purchases

Questions

Is DevSnap free?
DevSnap is free to download, with no in-app purchases.
Is HeaderX free?
HeaderX is free to download, with no in-app purchases.
Do DevSnap or HeaderX have ads?
Neither DevSnap nor HeaderX shows ads.
Which is updated more often, DevSnap or HeaderX?
DevSnap ships an update weekly, and HeaderX every 8 days. Most recently, DevSnap was updated on September 21, 2026 and HeaderX on September 16, 2026.

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