# API Usage vs SSE Inspector

The clearest difference is iOS requirement: SSE Inspector at 17.0 against API Usage's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | API Usage | SSE Inspector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sse-inspector-llm-api-client/id6782099094/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | — | Free |
| Size | 5 MB | 3 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Barolo AI](https://appshunter.io/developer/1896727788) | [猛 李](https://appshunter.io/developer/6779653099) |

## What reviewers say

### API Usage

[App page](https://appshunter.io/ios/app/api-usage/id6770253168)

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

**In-app purchases:** none


### SSE Inspector

[App page](https://appshunter.io/ios/app/sse-inspector-llm-api-client/id6782099094)

Debug AI API streams with this tool that preserves SSE responses, showing every packet, semantic delta, and timing. It supports multiple AI models and imports cURL commands for easy session management, editing, and sharing.

**Highlights:** Preserves original SSE responses, Displays packet details and timing, Supports OpenAI, Claude, Gemini, Ollama, Llama, Imports sessions via cURL commands, Edits, reruns, and shares debugging sessions, No account required, data stays on device

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is API Usage free?

API Usage is free to download, with no in-app purchases.

### Is SSE Inspector free?

SSE Inspector is free to download, with no in-app purchases.

### Do API Usage or SSE Inspector have ads?

Neither API Usage nor SSE Inspector shows ads.

---

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