Request12 vs Syntex
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Request12
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Request12 is a focused API debugging tool built for iOS developers, QA engineers, and technical teams that need fast visibility into web traffic. Use the built-in browser to load a page, capture network calls, inspect details, and replay requests with edits in a sandbox environment. What you can do - Browse any target URL in an embedded webview. - Automatically capture `fetch` and `XMLHttpRequest` traffic from pages loaded in the app. - View method, status, timestamp, full URL, headers, request body, and response body. - Filter traffic by method and search by URL/status/error. - Inspect JSON with pretty print and syntax highlighting. - Copy URL, request body, response body, and payload sections in one tap. - Send captured requests directly to Sandbox. - Edit method, URL, headers, and body before execution. - Execute with cookie sync support from the browser context. - Review response status, latency, headers, and body for fast validation. - Switch between Light, Dark, and System themes. Request12 is designed for fast iteration: - Reproduce issues from real traffic. - Validate backend changes quickly. - Compare original vs modified requests. - Test custom headers and payload variations on mobile. Notes Request12 captures traffic generated inside the app browser context and sandbox workflow. It is intended for authorized testing and debugging use cases.
Syntex
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Syntex is a clean, fast developer toolkit built for people who write code. Stop switching between browser tabs just to format a JSON response, generate a UUID, or convert a timestamp. Syntex puts 8 essential dev tools in one place ā always offline, always instant. ā TOOLS INCLUDED ā { } JSON Formatter Paste any JSON and instantly format it with proper indentation. Validates structure and highlights errors so you know exactly what's wrong. b64 Base64 Encode plain text to Base64 or decode Base64 strings back to readable text. Great for working with APIs, tokens, and encoded payloads. uid UUID Generator Generate one or multiple UUIDs (v4) in lowercase or uppercase. Copy individually or copy all at once. ts Timestamp Converter Convert Unix timestamps to human-readable dates, or pick any date and get the Unix timestamp back. Shows current time live. Aa Text Case Transform text between 8 formats instantly: UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, PascalCase, and CONSTANT_CASE. ### Hash Generator Hash any string with MD5, SHA-1, SHA-256, or SHA-512. Results appear instantly as you type. Copy with one tap. ⦠QR Code Generator Generate a scannable QR code from any text or URL. Save directly to your Photos library or share with any app. /// Notes & Snippets A quick-access notepad for API keys, code snippets, curl commands, and anything else you need at your fingertips. Local, private, no sync required. ā WHY SYNTEX ā ⢠Works 100% offline ā no internet required ⢠No accounts, no sign-in, no tracking ⢠Dark interface built for developer comfort ⢠Monospaced typography throughout ⢠Instant results ā no loading, no spinning Built by a developer, for developers.
Screenshots
Verdict
Request12 and Syntex are too close to call on the numbers: across 5 compared parameters ā price, ads, in-app purchases and device support among them ā neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Request12 | Syntex |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 ā better |
| Further details ā not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | Blupurple Design Ltd. | MOHAMMED ALSUBAIE |
In-app purchases
Request12
No in-app purchases
Syntex
No in-app purchases









