Comparison

iCurlHTTP vs OONI Probe

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iCurlHTTP

Test web server responses with cURL-like functionality on your iPhone or iPad. Simulate various browsers and inspect raw HTTP headers and HTML. Analyze network performance with detailed timing information.

Highlights
  • Simulate browser user-agents
  • Inspect raw HTTP headers and HTML
  • Support for GET, HEAD, POST, PUT, DELETE, OPTIONS, TRACE requests
  • SSL support with certificate info
  • History of tested URLs
  • Detailed HTTP timing analysis
  • HTTP/2 and IPv4/IPv6 support
Features
Read full description

HTTP Web Server Response Diagnostic Tool - Curl for iPhone and iPad iCurlHTTP is a simple, easy to use app that allows you to run MacOS/Linux-like cURL tests against URLs. It can simulate different web browsers (user-agents) to retrieve the raw HTTP headers and HTML response from web servers. ** GET, HEAD & POST Requests (GET, HEAD, POST, PUT, DELETE, OPTIONS and TRACE on iPad) ** SSL Support - https requests with basic certificate and handshake information ** Keeps a history of URLs tested with HEADER and POST data and provides them in a dropdown for easy repeated testing ** Simulates curl, iPhone, iPad, Safari, IE, Chrome and custom user-agent browsers ** Simple single-view interface with realtime result screen. ** iPhone and iPad support ** Verbose and Basic Detail ** HTTP Timing Details (Name Lookup, TCP Connect, SSL Handshake, First Byte and Total) ** Set custom User-Agent, Host Headers, Timeouts, HTTP Authentication, SSL Mode and POST Data ** Share Feature to send output to Clipboard, Printer and Email ** HTTP/2 Support ** IPv4 and IPv6 DNS Resolution with Option for Manual Address Resolution (via HOST:PORT:ADDRESS)

About

OONI Probe

This app helps you detect internet censorship and surveillance systems by examining website and app blocking. It also measures your network's speed and performance, providing data that can serve as evidence of interference. All collected data is published openly to promote transparency.

Highlights
  • Examine website and app blocking
  • Measure network speed and performance
  • Detect censorship and surveillance systems
  • Collect evidence of internet censorship
  • Publish open network measurement data
  • Free and open source software
Features
Read full description

Are websites and social media apps blocked? Is your network unusually slow? Run OONI Probe to find out! With this app, you will examine the blocking of websites and instant messaging apps, measure your network's speed and performance, and check whether systems that could be responsible for censorship and surveillance are in your network. OONI Probe is developed by the Open Observatory of Network Interference (OONI), a free software project (under The Tor Project) that aims to uncover internet censorship around the world. Since 2012, OONI’s global community has collected millions of network measurements from more than 200 countries, shedding light on multiple cases of network interference. ▶ Collect evidence of internet censorship You can check whether and how websites and instant messaging apps are blocked. The network measurement data you will collect may serve as evidence of internet censorship. ▶ Detect systems responsible for censorship and surveillance OONI Probe tests are also designed to uncover the presence of systems (middleboxes) that could be responsible for censorship and surveillance. ▶ Measure the speed and performance of your network You can measure the speed and performance of your network by running OONI's implementation of the Network Diagnostic Test (NDT). You can also measure video streaming performance with the Dynamic Adaptive Streaming over HTTP (DASH) test. ▶ Open data OONI publishes network measurement data because open data allows third parties to verify OONI findings, conduct independent studies, and answer other research questions. Openly publishing OONI data also helps increase transparency of internet censorship around the world. You can explore and download OONI data here: https://ooni.io/data/ ▶ Free software All OONI Probe tests (including our NDT and DASH implementations), are based on free and open source software. You can find OONI software projects on GitHub: https://github.com/ooni. Curious to learn how OONI Probe tests work? Learn more: https://ooni.io/nettest/ To receive updates from the OONI-verse, follow us on Twitter: https://twitter.com/OpenObservatory

Screenshots

iCurlHTTP4 screens
OONI Probe4 screens

Verdict

The call

The clearest difference is monetization model: OONI Probe at free against iCurlHTTP's paid. OONI Probe also leads on update cadence (every 2 months vs every 7 months). iCurlHTTP's advantage is review sentiment (84% vs 58%) and iOS requirement (13.0 vs 15.0). On price, rating, ratings volume and ads 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for iCurlHTTP against 4.5 for OONI Probe. Both are backed by a comparable volume of ratings — 30 and 88 respectively. Written reviews are what separate them: 84% of iCurlHTTP's written reviews are positive against 58% of OONI Probe's.

UpkeepUpdate frequency

iCurlHTTP ships an update every 7 months, OONI Probe every 2 months. The most recent releases landed on August 18, 2026 and September 29, 2026 respectively.

Scorecard4 real differences · 6 level
iCurlHTTP versus OONI Probe: the parameters behind the verdict, then further details
ParameteriCurlHTTPOONI Probe
PriceFreeFree
Rating4.4 (30 ratings)4.5 (88 ratings) — better
Positive reviews84.4% of reviews — better58.1% of reviews
Number of ratings3088 — better
Update frequencyEvery 7 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size9 MB139 MB
Age rating17+4+
DeveloperJason CoxThe Tor Project

Customer experience

iCurlHTTP

All ratings30 ratings
Positive86.7%
Neutral3.3%
Negative10.0%
Written reviews45 reviews
Positive84.4%
Neutral6.7%
Negative8.9%

OONI Probe

All ratings88 ratings
Positive86.4%
Neutral6.8%
Negative6.8%
Written reviews31 reviews
Positive58.1%
Neutral12.9%
Negative29.0%

In-app purchases

None

iCurlHTTP

No in-app purchases

None

OONI Probe

No in-app purchases

Questions

Is iCurlHTTP free?
iCurlHTTP is free to download, with no in-app purchases.
Is OONI Probe free?
OONI Probe is free to download, with no in-app purchases.
Which has better reviews, iCurlHTTP or OONI Probe?
OONI Probe is rated higher. iCurlHTTP averages 4.4 out of 5 from 30 ratings, while OONI Probe averages 4.5 from 88 ratings.
Do iCurlHTTP or OONI Probe have ads?
Neither iCurlHTTP nor OONI Probe shows ads.
Which is updated more often, iCurlHTTP or OONI Probe?
iCurlHTTP ships an update every 7 months, and OONI Probe every 2 months. Most recently, iCurlHTTP was updated on August 18, 2026 and OONI Probe on September 29, 2026.

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