WiFi Analyzer promo video

Hi guys,

I just created a new promotional video for my WiFi Analyzer and WiFi Analyzer Pro, and I thought I share it with you.


What you have to know about SD card speed

Hi guys,

I just want to discuss something related to my SD Card Test app. Sometimes I got negative feedback (low rating) with the following content:

“this app is wrong because it reports slow sd card speed (only 20 MB/s) and I have a Class 10 sd card subtitled up to 100 MB/s”

In fact, the app is good and the sd card is slow, that’s the reality.

Class 10 means the minimum sequential write speed is 10 MB/s. That’s all and nothing more. Anything above this value is just “up to”, and in fact that means nothing.

Let me tell you an example:

I have an Samsung EVO 64 GB Sd card, the type is Class 10/U1/XC1.  The spec mentions “up to” 48 MB/s.

But is this true? The trick is the next: the highlighted value is the read speed and not the write.

The reality is the next:

  • write speed:  23 MB/s
  • read speed: 45 MB/s

I tested it with my app, and with my computer too, the result is the same.

My app will assign the class type based on the write speed and you can compare the read and write speed.










The specification is the next:

  • class 10/UHS-1: the minimum sequential write speed is 10 MB/s
  • UHS-3/V30: the minimum sequential write speed is 30 MB/s
  • V60: the minimum sequential write speed is 60 MB/s
  • V90: the minimum sequential write speed is 90 MB/s

So when you find the measured speed too slow, don’t think my app is wrong, just check the class type and don’t believe for the marketing texts (“up to”).

SD Card Test


device-2017-01-17-222230Hi guys,

I have a new app on Google Play, called SD Card Test. You can download it using this link.

Using this app, you can test the speed of the internal (built-in) or external (removable) SD card. You can measure both read and write speeds.





Here are a few more screenshots:


Network Signal Monitor for Android

Hello guys!

networksignalmonitor1Let me introduce my new app called Network Signal Monitor. You can download it from Google Play, link here.

This app is very similar to my existing WiFi Analyzer application, but it monitors and analyzes the cellular network of your mobile phone. So it will check your network type like LTE or HSDPA, the latency, signal strength and others.

Main features:
* detailed mobile network information
* detailed SIM information
* analyzing function
* real-time signal strength on the dashboard and on the graph.

As this is a new app, forgive me if you find any error or problem in the app, but feel free to send me your remarks.

Dual SIM devices are also supported, but currently only partially (I’m working on it).

More screenshot about the application:


Iperf on Android with visualization

Hi guys,

Now my WiFi Speed Test Pro app supports Iperf too. Just select IPERF tab, give the IP address and port of the iperf server, then click on start.











Then you can see the result both on speedometer and on visualization tab. Of course don’t forget to start iperf server:


UDP network test on Android

Screenshot_2015-10-20-21-04-06From the v2.3.0 of WiFi Speed Test app, you can test the UDP speed of your network using your android based mobile. You can download the application from Google Play, but the UDP support is in beta phase currently, that means you can download it from the Google Play Testing site.

Basically, just go to TCP/UDP client tab, and select UDP protocol (highlighted with red line on the picture).

Then change the UDP target bandwidth or let the default. This is because UDP is not a reliable protocol that means it can send packages as fast as possible and then can lose packages with the same tempo. With this option, you can limit the bandwidth and detect the speed where your network is even acceptable reliable and where it is not.
That’s all, give or browse the server, then just click on start (I assume your server already runs, see later), you can test the upload and the download speed too. At the end of test, a result window will be displayed about the sent/received bytes and about the lost bytes. If there are no (or not to much) lost data, you can increase the bandwidth, or you can decrease it in other case.
Also you can set the transferred data (1-1000 MB) and the data size (128 bytes-32KB), just scroll down and click on “Set data size” button.
For more info about this application you can find here


Unlucky case, the speed is too high, data loss is also high

The server

You have to start the server on another computer, this server will receive the data sent by the app. It’s very easy to use, just download wifi_speed_test_server.exe to your computer and start it. Alternatively, if you are using non-windows based computer, you can start the python version too, download wifi_speed_test.py and then start with the next command: python path_to/wifi_speed_test.py.

Don’t forget to enable tcp port 1212 and udp port 1213 if you are using firewall, or temporary disable it for the period of the tests.
For more info about the server, you can find here


You can follow the transfer.

Minix Neo X7 network performance

As I have this android box, just measured the network performance, both on wifi and ethernet network using this app (detailed guide here). For more details about X7 here.

The max wifi speed was around 34 Mbps (link speed: 65 Mbps) using 5 Ghz network. When switched to ethernet network, the device could perform  around 90 Mbps.

For the tests I used an ac router with gigabit network.

Here are a few screenshots about the tests: