REST API Client vs PostX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
REST API Client
This tool allows users to send and analyze API requests with customizable parameters, authorization, and body content. It offers robust search and filtering capabilities for managing saved requests, optimized for iPadOS with keyboard support.
- Send and analyze API requests
- Customize query parameters, authorization, and headers
- Support for four body types
- Search and filter requests
- Create, save, update, and delete requests
- Optimized for iPadOS with keyboard support
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Send and analyze requests with detailed response headers and results. Add query parameters, authorization tokens, headers, or body content to tailor every request. Choose from four flexible body types: none, form-data, form-urlencoded, or raw. Search and filter requests by name, URL, HTTP method, or modified date, and organize them by month or year. Create, save, update, or delete requests seamlessly within the REST API Client. Fully optimized for iPadOS, with support for Smart/Magic Keyboard and time-saving keyboard shortcuts.
PostX
This app allows developers to build and test REST, HTTP, and SOAP APIs directly on their iPhone or iPad. It supports various request methods, authentication types, and body formats, with features for organizing requests and inspecting responses.
- HTTP/HTTPS methods (GET, POST, PUT, DELETE, PATCH)
- Custom query parameters
- Basic, Bearer/JWT, OAuth authentication
- Customizable headers
- Multiple body formats (raw, binary, GraphQL, form-data)
- Pre-request and post-response scripting
- Response viewer with status codes and prettified JSON
- Request history and workspaces
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PostX is a powerful yet simple API client for iPhone and iPad for working with REST APIs, HTTP APIs, and even occasional SOAP APIs. Use this REST API client and HTTP API client to quickly build requests, inspect responses, and iterate on your backend without needing a desktop tool. Features of PostX • HTTP/HTTPS methods Send requests with GET, POST, PUT, DELETE, PATCH, and more so you can cover most modern REST and HTTP APIs in one API client. • Custom parameters Add query parameters with key, value, and descriptions to keep complex endpoints organized and reusable in your API-client testing workflow. • Authorization Use Basic, Bearer/JWT, and OAuth-style authentication to connect securely to protected APIs directly from this REST API client for iOS. • Headers Add custom headers, with common ones like Content-Type and User-Agent ready for quick setup when using this HTTP API client on iPhone and iPad. • Body formats Build request bodies in raw, binary, GraphQL, form-data, and x-www-form-urlencoded formats to handle most real-world REST and HTTP API scenarios. • Scripts Insert pre-request and post-response scripts to handle tokens, variables, and simple checks without leaving your API client. • Response viewer View status codes, headers, and prettified JSON to understand and debug API behavior faster during API-client testing. • History Automatically save requests and responses so you can rerun, tweak, and reuse them whenever you need inside your API client for iOS. • Workspaces Create workspaces to organize APIs by project, service, or environment so you can keep related requests grouped and easy to access. Its a great alternative to Postman PostX is an all-in-one REST API client and HTTP API client for iPhone and iPad that brings your desktop API workflow to iOS. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://elevarelab.site/privacy
Screenshots
Verdict
The clearest difference is rating: REST API Client at 4.3 against PostX's 3.0. REST API Client also leads on update cadence (every 3 weeks vs every 3 months) and iOS requirement (14.0 vs 17.6). PostX's advantage is ads (none vs shown) and chart position (#180 vs unranked). On price, ratings volume, in-app purchases and monetization model 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
Both are free to download. REST API Client sells 1 one-off in-app purchase and PostX sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
REST API Client holds the better App Store score, 4.3 against 3.0. Both are backed by a comparable volume of ratings — 6 and 10 respectively.
REST API Client ships an update every 3 weeks, PostX every 3 months. The most recent releases landed on September 21, 2026 and September 28, 2026 respectively.
| Parameter | REST API Client | PostX |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (6 ratings) — better | 3.0 (10 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 6 | 10 — better |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | — | #180 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 17 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Tevon Wallace | Anupkumar Naginbhai Patel |
Customer experience
REST API Client
PostX
In-app purchases
REST API Client
- Remove Ads$1.99
PostX
- Postmon Pro Weekly$4.997 Days
- Postmon Pro Monthly$9.991 Month
- Postmon Pro Yearly$24.991 Year
