# PostX vs API Key Manager

The clearest difference is chart position: PostX at #200 against API Key Manager's unranked. API Key Manager's advantage is update cadence (every 5 weeks vs every 3 months). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PostX sells 3 in-app purchases, starting at $4.99 per 7 days and API Key Manager sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

PostX ships an update every 3 months, API Key Manager every 5 weeks. The most recent releases landed on September 28, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PostX | API Key Manager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (10 ratings)](https://appshunter.io/ios/app/postx-rest-api-client/id6756872354/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Freemium | — |
| Best chart rank | **#200** | — |
| Size | 4 MB | 2 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Anupkumar Naginbhai Patel](https://appshunter.io/developer/1863355963) | [Kai Natori](https://appshunter.io/developer/6791522879) |

## What reviewers say

### PostX

[App page](https://appshunter.io/ios/app/postx-rest-api-client/id6756872354)

**Currently charting:** #200 Top Grossing · Developer Tools (US App Store)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Postmon Pro Weekly | $4.99 | per 7 days |
| Postmon Pro Monthly | $9.99 | per month |
| Postmon Pro Yearly | $24.99 | per year |


### API Key Manager

[App page](https://appshunter.io/ios/app/api-key-manager-secure-vault/id6802492370)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $1.99 | per month |
| Annual Pro | $19.99 | per year |


## Frequently asked questions

### Is PostX free?

PostX is free to download, with in-app purchases available.

### Is API Key Manager free?

API Key Manager is free to download, with in-app purchases available.

### Do PostX or API Key Manager have ads?

Neither PostX nor API Key Manager shows ads.

### Which is updated more often, PostX or API Key Manager?

PostX ships an update every 3 months, and API Key Manager every 5 weeks. Most recently, PostX was updated on September 28, 2026 and API Key Manager on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*