Comparison

Simple cURL vs Custom JS & CSS for Safari

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

Head to head
About

Simple cURL

This app allows developers and backend professionals to test, debug, and analyze API requests directly from their mobile devices. It provides detailed response displays and features like custom headers and dark mode for an optimized developer experience.

Highlights
  • Run complex cURL commands
  • Support for custom headers
  • Detailed response display
  • Copy response parts (JSON, headers, body)
  • Dark mode
  • Optimized for iOS integration
Features
Read full description

Simple cURL is the essential tool for iOS developers and backend professionals who need to test, debug, and analyze API requests directly from their mobile device. With an intuitive interface and powerful features, it turns your iPhone or iPad into a portable API client. Key Features: Run complex cURL commands with support for custom headers Detailed response display including status code, headers, and body in readable format. Smart context menu to quickly copy specific parts of the response (full JSON, headers, or body) with a long tap on the response box. Dark mode and developer-optimized typography for extended reading. Who is this app for: iOS developers who need to test APIs in development environments (UAT, QA, Production). Backend engineers who want to verify endpoints from anywhere. Programming students learning about HTTP/REST protocols. DevOps professionals performing quick service monitoring. Why choose Simple cURL: Technical accuracy: Analyze every detail of the response, including hidden headers and status codes. Optimized for iOS: Seamless integration with clipboard, contextual keyboard, and Siri shortcuts. Guaranteed privacy: Zero tracking, your API data never leaves your device to be stored anywhere. Just copy a cURL from Charles proxy and paste into Simple cURL and see the responses

About

Custom JS & CSS for Safari

Personalize your web browsing experience by injecting custom JavaScript and CSS into any website. Automate tasks, apply visual tweaks, and manage userscripts directly within Safari.

Highlights
  • Add custom JavaScript
  • Add custom CSS
  • Site-specific rules
  • Userscript manager
  • iCloud sync
  • Privacy-first design
Features
Read full description

Custom JS & CSS for Safari is a powerful Safari Extension that lets you personalize the web with your own JavaScript, CSS, and userscripts. Create site-specific enhancements, visual tweaks, automations, and custom browsing tools directly in Safari. Features: · Add Custom JavaScript: Run your own JavaScript on any website directly in Safari. · Add Custom CSS: Style websites with your own CSS rules and visual tweaks. · Site-Specific Rules: Apply scripts and styles to a single domain, exact URL, all websites, or custom match patterns. · Run Scripts Manually or Automatically: Choose whether each script runs on its own or only when you activate it. · Userscript Manager: Import, organize, and run userscripts from popular userscript libraries like Greasy Fork. · Popup and Custom Editor: Add or edit scripts directly from the extension popup or in a dedicated custom editor. · iCloud Sync: Keep your scripts and styles synced across iPhone, iPad, and Mac using iCloud. · Privacy-first design: No data collection, tracking, or logging, your browsing stays completely private. · Multilingual support: Use the extension in multiple languages for a globally friendly experience. · Clean, user-friendly UI: Enjoy a streamlined design that integrates smoothly into your workflow. · Seamless Safari integration: Built to work flawlessly across Safari on macOS, iOS, and iPadOS.

Screenshots

Simple cURL4 screens
Custom JS & CSS for Safari4 screens

Verdict

The call

The clearest difference is rating: Custom JS & CSS for Safari at 5.0 against Simple cURL's 3.0. Custom JS & CSS for Safari also leads on chart position (#45 vs unranked). Simple cURL's advantage is price ($0.99 vs $2.99). On ratings volume, update cadence, 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

Simple cURL costs $0.99 and Custom JS & CSS for Safari $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Custom JS & CSS for Safari holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Simple cURL ships an update every 2 months, Custom JS & CSS for Safari every 5 weeks. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 8 level
Simple cURL versus Custom JS & CSS for Safari: the parameters behind the verdict, then further details
ParameterSimple cURLCustom JS & CSS for Safari
Price$0.99 — better$2.99
Rating3.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings11
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#45 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.615.0 — better
Further details — not scored
Size1 MB10 MB
Age rating4+4+
DeveloperRodrigo Velazquez TapiaAlfredo Grassau

Customer experience

Simple cURL

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Custom JS & CSS for Safari

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Simple cURL

No in-app purchases

None

Custom JS & CSS for Safari

No in-app purchases

Questions

Is Simple cURL free?
Simple cURL costs $0.99, with no in-app purchases.
Is Custom JS & CSS for Safari free?
Custom JS & CSS for Safari costs $2.99, with no in-app purchases.
Which has better reviews, Simple cURL or Custom JS & CSS for Safari?
Custom JS & CSS for Safari is rated higher. Simple cURL averages 3.0 out of 5 from 1 ratings, while Custom JS & CSS for Safari averages 5.0 from 1 ratings.
Do Simple cURL or Custom JS & CSS for Safari have ads?
Neither Simple cURL nor Custom JS & CSS for Safari shows ads.
Which is updated more often, Simple cURL or Custom JS & CSS for Safari?
Simple cURL ships an update every 2 months, and Custom JS & CSS for Safari every 5 weeks. Most recently, Simple cURL was updated on November 8, 2026 and Custom JS & CSS for Safari on November 10, 2026.

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