Proxyman vs Cosmo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Proxyman
This app acts as a web debugging proxy, allowing you to capture and inspect HTTP/HTTPS traffic directly from your iPhone or iPad. It decrypts requests and responses, offers advanced debugging tools, and ensures your sensitive data remains on your device.
- Capture & Inspect HTTP/HTTPS from iOS devices
- Decrypt and view requests/responses
- JSON syntax highlighting
- Quick filtering by URL, header, body
- Advanced debugging tools (SSL Proxying, Block List)
- Secure with FaceID/TouchID/Passcode
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Meet a superb Web Debugging Proxy that can act like a middleman, aka Proxyman. ### Features - Directly Capture & Inspect HTTP/HTTPS from your iOS/iPad Devices without using MacBooks. - Decrypt and View HTTP/HTTPS Request/Response in plain text - JSON Syntax Highlighting - Exclusively designed for iPhone and iPad (Landscape and Two Columns) - Share traffic to Proxyman macOS - a native macOS app for better inspection - Pin working domains - Quick filter with URL, Header Body, and Type of Request/Response (e.g., JSON, Form, HTML, CSS, Document, etc) - Better Request/Response Previewer: Multiple columns, JSON Preview, JSON TreeView, etc - Safe Lock: Protect your sensitive data with FaceID / TouchID / Passcode - Advanced Debugging Tools: SSL Proxying, Block List, Map Local, Breakpoint, etc - Rewrite & Scripting ### Proxyman macOS Proxyman for iOS works perfectly with Proxyman for macOS (native macOS app, supports macOS 26 and M4 Chip) ### How it works Proxyman iOS creates a local VPN on your device and then forwards all traffic to a Local Man-in-The-Middle Server. As long as the VPN is active, Proxyman iOS can capture all traffic over Wi-Fi and cellular Data. ### How about my sensitive data? - Proxyman Root Certificate is a self-signed certificate that is generated on your local machine. Thus, all requests and responses are captured and stored on your devices and Proxyman does not have access to your data. - There are no remote servers involved. What’s in your devices, it’s in your devices. ************* - Support: https://proxyman.com/support - Privacy Policy: https://proxyman.com/privacy - Terms of Services: https://proxyman.com/terms-of-use
Cosmo
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We've been there. You need to execute a postman collection asap, but you're away from your desktop. You try the mobile web browser, but it's just not cutting it! Meet Cosmo, Postman's best friend. Cosmo integrates with your Postman account, giving you access to your Postman content on the go. Features include: ** Integration via API key. The key is store securely on your own device, and never leaves. ** Access all of your collections, across all workspaces. ** Modify collection and environment variables locally. ** Configure full or partial collection runs with support for nested folders. ** Or, trigger individual endpoint requests. ** View responses, complete with pass / fail test results. ** Pre and post request scripts will run seamlessly, and update local variable state. There are some tricks Cosmo hasn't learned yet: ** Create, edit, or delete collections and/or requests. ** Save variable modifications to the Postman servers. Only the local instances are updated. ** Team management. No inviting new members, managing members, etc. If you would like to see a new feature, just ask!
Screenshots
Verdict
The clearest difference is in-app purchases: Cosmo at none against Proxyman's 5. Cosmo also leads on iOS requirement (15.1 vs 17.0). Proxyman's advantage is chart position (#10 vs unranked). On price, ads and device support 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. Proxyman sells 5 in-app purchases, starting at $8.99 per month. Cosmo asks for nothing beyond the download.
| Parameter | Proxyman | Cosmo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (804 ratings) — better | — |
| Positive reviews | 80.5% of reviews | — |
| Number of ratings | 804 — better | — |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #10 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 73 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Proxyman LLC | Fetch Cosmo, LLC |
Bugs and requests
Proxyman
Reported bugs
4 issues- Breakpoint functionality not working properly
- Losing session state when relaunching the app
- Incompatibility issues with certain apps and websites
- Crashes when trying to view large response bodies
Requested features
5 requests- Add support for Simplified Chinese
- Implement scripting capabilities like the desktop version
- Improve handling of WebSocket and MQTT traffic
- Allow grouping of related requests
- Add an option to change DNS settings within the app
Cosmo
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Proxyman
- Premium Monthly Subscription$8.991 Month
- PROJECT PASS Quarterly Subscription$19.993 Months
- Premium Annual Subscription$49.991 Year
- Proxyman Lifetime with Black Friday$69.99
- Lifetime Access$99.99
Cosmo
No in-app purchases









