Comparison

Outpost vs HeaderX

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

Head to head
About

Outpost

This app provides a precise SSH terminal experience on mobile, ensuring your shell's appearance, including icons and special characters, is rendered correctly. It prioritizes security with iOS Keychain integration and offers features for efficient remote work, such as multiple server connections and a custom keyboard bar.

Highlights
  • Glyph-perfect rendering of terminal characters
  • Nerd Font icon and Powerline prompt support
  • Secure credential storage with Face ID
  • Multiple server connections with scrollback
  • Customizable keyboard bar for terminal keys
  • Font size, color themes, and cursor customization
Features
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Outpost is an SSH client built for one thing above all: rendering your terminal exactly right. If you've connected to a server from your phone and watched your setup fall apart - broken Powerline segments, missing Nerd Font icons, boxes where emoji should be, mangled box-drawing - Outpost is the fix. It's engineered around glyph correctness, so your shell looks the way it does on your desktop. Glyph-perfect rendering. Nerd Font icons, Powerline prompts, box-drawing, wide and ambiguous-width characters, combining marks, and emoji - all correct. Secure by design. Passwords and imported keys are stored in the iOS Keychain behind Face ID. Or generate a key that never leaves the device's Secure Enclave. Host keys are pinned on first connect, with a hard warning if one ever changes. Built for real work. Keep several servers open at once and switch with a tap - scrollback survives. A keyboard bar with the keys a terminal actually needs. Copy and paste, drag to scroll, and tap-to-click in mouse-aware TUIs. Run your own setup commands automatically on connect. Make it yours. Font size, colour themes, and cursor style. No account, no tracking, nothing to sign up for. Your credentials stay on your device.

About

HeaderX

Features
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HeaderX injects custom HTTP request headers into your Safari browsing session — 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 — 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 — your configuration stays saved either way. REUSABLE PROFILES Save named header sets — one per project, environment, or test scenario — and switch between them in two clicks. FEATURES • One-tap master toggle • JSON editor and checkbox list views • Per-header enable/disable • Named profiles for quick switching • Settings persist across browser restarts • 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 — 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 — 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

Outpost4 screens
HeaderX4 screens

Verdict

The call

The clearest difference is update cadence: Outpost at daily against HeaderX's every 8 days. HeaderX's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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

Scorecard3 real differences · 7 level
Outpost versus HeaderX: the parameters behind the verdict, then further details
ParameterOutpostHeaderX
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyDaily — betterEvery 8 days
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS17.015.0 — better
Further details — not scored
Size40 MB1 MB
Age rating4+4+
DeveloperMathew TaylorGyuman Kim

In-app purchases

None

Outpost

No in-app purchases

None

HeaderX

No in-app purchases

Questions

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

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