Comparison

Simple TypeScript vs HeaderX

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

Head to head
About

Simple TypeScript

Features
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β€œWant to try TypeScript code while you’re on the go?” This app is a simple TypeScript editor and runtime designed for smartphones. It provides a powerful code editor with syntax highlighting, allowing you to write and run TypeScript code instantly. It is suitable for everything from learning TypeScript to practical coding and testing. Common use cases include: * Learning TypeScript * Programming practice * Learning web development * Learning type-safe coding * Studying algorithms * Testing code snippets * Verifying sample code * Taking TypeScript notes * Creating scripts * Testing functions and types * Writing code for technical blogs * Training and workshops * Building prototypes * Managing code snippets * Experimenting with new ideas * Creating a simple testing environment during development TypeScript can be used in many different ways, and this app helps you quickly write, test, and manage your code. If you are looking for a TypeScript editor and runtime, give it a try. β–  Features β€’ Intuitive Interface Simple tools should be easy to use. The editor is designed to be fast, responsive, and comfortable for everyday coding. β€’ Run Code Instantly Execute TypeScript code with a single tap. View output and error messages immediately. β€’ Code Auto Completion Built-in code completion helps you write code more efficiently. β€’ Code Formatting Automatically format your code to improve readability and maintain a clean coding style. β€’ Find and Replace Search and replace text within your code quickly and easily. β€’ Code Folding Collapse and expand code blocks to make large files easier to navigate. β€’ Easy Cursor Navigation Move the cursor using directional controls for more precise editing. β€’ Automatic Saving Your code is automatically saved while editing, so you never have to worry about losing changes. β€’ Ready to Use No account registration is required. Start coding immediately after installation. β€’ Export and Share Export and share your code with others. Useful for backups and editing on different devices. β€’ Dark Theme Support Supports dark mode for comfortable coding day and night.

About

HeaderX

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

Simple TypeScript4 screens
HeaderX4 screens

Verdict

The call

The clearest difference is in-app purchases: HeaderX at none against Simple TypeScript's 2. On price, update cadence, ads and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Simple TypeScript sells 2 in-app purchases, starting at $1.99 per month. HeaderX asks for nothing beyond the download.

UpkeepUpdate frequency

Simple TypeScript ships an update fortnightly, HeaderX every 8 days. Both last shipped on October 25, 2026.

Scorecard1 real difference Β· 5 level
Simple TypeScript versus HeaderX: the parameters behind the verdict, then further details
ParameterSimple TypeScriptHeaderX
PriceFreeFree
Update frequencyFortnightlyEvery 8 days β€” better
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac β€” better
Requires iOS15.615.0 β€” better
Further details β€” not scored
Size66 MB1 MB
Age rating4+4+
DeveloperYUKI TANAIKEGyuman Kim

In-app purchases

2 purchases

Simple TypeScript

Subscriptions2
  • Simple Typescript Pro (Monthly)$1.991 Month
  • Simple TypeScript Pro (Annual)$18.001 Year
None

HeaderX

No in-app purchases

Questions

Is Simple TypeScript free?
Simple TypeScript is free to download, with in-app purchases available.
Is HeaderX free?
HeaderX is free to download, with no in-app purchases.
Do Simple TypeScript or HeaderX have ads?
Neither Simple TypeScript nor HeaderX shows ads.
Which is updated more often, Simple TypeScript or HeaderX?
Simple TypeScript ships an update fortnightly, and HeaderX every 8 days. Most recently, Simple TypeScript was updated on October 25, 2026 and HeaderX on October 25, 2026.

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