Comparison

OONI Probe vs Simple Dict Mobile Pro

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

Head to head
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

About

Simple Dict Mobile Pro

This app provides a fast and efficient offline dictionary experience, supporting various formats like zim, mdx, and dsl. It offers multiple search methods and a 'reading area' to save and track your lookups.

Highlights
  • Offline dictionary functionality
  • Supports zim, mdx, dsl formats
  • Keyword, regex, and fuzzy search
  • Reading area for saved entries
  • Lightweight and high-performance indexing
Features
Read full description

A simple, lightweight, and high-performance offline dictionary that easily indexes and searches large dictionary files. Currently supports dictionary formats: zim (Wikipedia), mdx, dsl. **Features:** 1. Multiple search methods: Supports keyword search, regular expression matching, and fuzzy search, helping you easily find target entries in large dictionaries. 2. "Reading Area" function: You can add entries you want to look up to the reading area. The app will save the entry's open state for easy access anytime. It also records the reading progress, and when the app is closed and reopened, the entry will automatically jump to the previous reading position. 3. Rich dictionary format support: This app currently supports zim, mdx, and dsl format dictionaries. There are many dictionaries available online for download, and there are also tools for creating your own dictionaries. 4. Lightweight and high-performance dictionary indexing: Fast startup and efficient search. You can add a large number of dictionaries without worrying about affecting the app's performance. 5. More features (such as reading history and favorites) will be added in future updates. **Note:** This app does not provide any dictionary content. You need to search, download, or create dictionaries in the corresponding format and import them into the app for use.

Screenshots

OONI Probe4 screens
Simple Dict Mobile Pro3 screens

Verdict

The call

The clearest difference is price: OONI Probe at Free against Simple Dict Mobile Pro's $0.49. OONI Probe also leads on rating (4.5 vs 1.0) and ratings volume (91 vs 1). On update cadence, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

OONI Probe is free to download; Simple Dict Mobile Pro costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

OONI Probe holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: OONI Probe has 91 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

OONI Probe ships an update every 2 months, Simple Dict Mobile Pro every 5 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
OONI Probe versus Simple Dict Mobile Pro: the parameters behind the verdict, then further details
ParameterOONI ProbeSimple Dict Mobile Pro
PriceFree — better$0.49
Rating4.5 (91 ratings) — better1.0 (1 ratings)
Positive reviews59.4% of reviews—
Number of ratings91 — better1
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size139 MB36 MB
Age rating4+4+
DeveloperThe Tor Project培基 王

In-app purchases

None

OONI Probe

No in-app purchases

None

Simple Dict Mobile Pro

No in-app purchases

Questions

Is OONI Probe free?
OONI Probe is free to download, with no in-app purchases.
Is Simple Dict Mobile Pro free?
Simple Dict Mobile Pro costs $0.49, with no in-app purchases.
Which has better reviews, OONI Probe or Simple Dict Mobile Pro?
OONI Probe is rated higher. OONI Probe averages 4.5 out of 5 from 91 ratings, while Simple Dict Mobile Pro averages 1.0 from 1 ratings.
Do OONI Probe or Simple Dict Mobile Pro have ads?
Neither OONI Probe nor Simple Dict Mobile Pro shows ads.
Which is updated more often, OONI Probe or Simple Dict Mobile Pro?
OONI Probe ships an update every 2 months, and Simple Dict Mobile Pro every 5 weeks. Most recently, OONI Probe was updated on November 2, 2026 and Simple Dict Mobile Pro on October 30, 2026.

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