# One Dev Tools vs SSE Inspector

The clearest difference is in-app purchases: SSE Inspector at none against One Dev Tools's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. One Dev Tools sells 2 one-off in-app purchases. SSE Inspector asks for nothing beyond the download.

One Dev Tools ships an update fortnightly, SSE Inspector weekly. The most recent releases landed on September 27, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | One Dev Tools | 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | — | Free |
| Size | 20 MB | 3 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Selma Lindqvist](https://appshunter.io/developer/1896618449) | [猛 李](https://appshunter.io/developer/6779653099) |

## What reviewers say

### One Dev Tools

[App page](https://appshunter.io/ios/app/one-dev-tools/id6768955248)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Theme Neon Violet | $1.99 | one-time |
| One Casino | $1.99 | one-time |


### 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 One Dev Tools free?

One Dev Tools is free to download, with in-app purchases available.

### Is SSE Inspector free?

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

### Do One Dev Tools or SSE Inspector have ads?

Neither One Dev Tools nor SSE Inspector shows ads.

### Which is updated more often, One Dev Tools or SSE Inspector?

One Dev Tools ships an update fortnightly, and SSE Inspector weekly. Most recently, One Dev Tools was updated on September 27, 2026 and SSE Inspector on September 13, 2026.

---

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