Pedometer is an application that has been created primarily to measure the physical activity of the user by collecting the steps that the user takes over the days.
This app has two main features: activity information and settings, all of which are available from the main screen of the app.
- Activity information. This feature is displayed on the entire screen at the time of launching the app and is divided into three sections that can be selected at the top of the screen: Day (displays daily activity information), week (shows activity information during the week), and month (shows activity during the last month).
This function contains at the top of thescreen, under the sections mentioned above, the corresponding date of the day and information about the steps that are being recorded throughout that day, this information is quite large so it can help older people who have vision difficulties identify it quickly. In the lower half is a table that shows the calories, time, average speed and distance that has been traveled, and under this table, there is a line chart showing the steps that have been taken throughout the day and when those steps have been taken.
In order to analyze and be able to carry out an evaluation of the application, a series of tests have been carried out to verify its operation. Testing has been performed on a Samsung Galaxy J7 device (Android 9 Pie) with version 5.33 and an iPhone 6S (IOS 13.3.1) with version 1.1.24
For each of these devices the operation has been slightly different so these tests will be carried out in two sections:
Samsung device – After installing the app on this device and launching it for the first time will shown two s pop-ups window,one that will ask you to accept the privacy policies in order to start using the app and another to accept or not that custom ads are displayed.. Once this is finished, it should be emphasized that on Android devices, to start counting the steps it is necessary topress the START button thatappears at the bottom of the screen, because, if not done,, the steps will not be recorded,, so it is mandatory. Another way to do this is to go into the settings section and configure the automatic step start/stop option. For older people who have less skill with the technology who want to use the application the latter is the most recommended since they will only have to configure once the activity schedule they want to register and, from that moment on the app will start counting the steps automatically.
iPhone device – Once the application is installed on this device and after starting it for the first time three pop-ups will be displayed (the first one in English and the next two in English), the first will ask for permission to access the physical and sports activity of the device,and the next two are the same as those shown on the Samsung phone. For iPhone devices the steps are recorded automatically, you do not need to press any buttons to start counting the steps.
In this section we will measure the ease with which the user can use the application to achieve a specific goal, in this case is to have a record of the steps and the user's uptime.
The application is very easy to use, has a simple and friendly interface, considering that in all the sections they show the same thing: a total of steps, calories burned, an average speed and a graph that shows the moments when the walks have been made the older people who want to use the application will not have any difficulty to understand how it works.
All this makes it very hard for the user to start using the application. This ease in learning usage also moves to the ease of remembering how it is used if you ever uninstall the application.
As for its effectiveness, it must be said that the app is extremely effective because, once the privacy policies are accepted,, in the case of iOS, the app itself will start working automatically without the older person who is using it only having to worry about checking the logs. In the case of Android, the user will have to specify the schedules only once for it to start working automatically.
With regard to portability, this pedometer works on any type of Smartphone, whether Android or iOS.
Taking into account the analysis of each of the above criteria it can be said that the product has a considerably good usability in terms of achieving the objective taking into account the use that older people will give it since, as the features that they will use of the application work automatically, it makes it much easier for them to use it.
In this section, different criteria will be applied to assess whether the application can be used regardless of the capabilities of the user.
Cognitive Accessibility – As for the images and icons contained in the application, they all have a description that facilitates their understanding and, in addition, they are a reasonable size so that they can be correctly identified.
Accessibility for people with reduced vision – The application has a settings section where you can only change the theme, giving you the possibility to choose from a range of 20 different themes. The font size cannot be changed from within the app, although the font size on the main screen is quite large and looks perfectly. You can increase the font size in the overall device settings, although this increase will only affect the font size in the settings menu. To complete this accessibility section it has been decided to do some tests with the screen reader systems available from Android and IOS devices. These tests have focused on checking the correct labeling of the icons and buttons available to the app. On all devices where the screen reader has been used, the buttons are not well labeled, and the data in the table under the steps does not play them correctly. The iOS device has not been able to access the pedometer settings menu.
Accessibility for people with hearing impairments – People with hearing impairments can use the app without any problem as it does not emit any alert sound.
In this section we will study whether the application has a correct functioning and has no critical failures that prevent its proper operation.
On the days that the app has been testing, the only bug that has been detected has been on the iOS device, preventing access to the app's settings while using the Voice Over screen reader.
Privacy and security
As for the privacy and security of the application, when you start it for the first time, it forces you to accept the privacy policies and makes them available to the user in the pop-up window so that you can read them. On Android devices, they can be accessed in the settings section, while on iOS devices you can check the app’s download page in the Apple Store.
Generally speaking, the app works in a proper way, the only bug that has been found is related to the iOS screen reader.
It is a very reliable application in terms of the count of steps as long as you take the mobile on top, and the app counts in the settings with a few sections of sensitivity and stride length that makes both the step count and the distance it calculates that has been traveled is more accurate.
The strongest point it has is its simplicity, to be able to use the application you don't need to move from its home page, you only have to use the settings the first time to configure the activity schedules. This makes it a very important application to take into account to encourage physical exercise among the elderly and encourage them to go for a walk, especially considering that they need it after spending a month locked in their homes due to the confinement generated by COVID-19,always respecting the measures indicated by the Ministry of Health..
Another of the strengths of the app is that it does not need an internet connection for its operation unlike other applications that use the location to calculate the distance traveled on the walks, since it does so by the stride length that has been entered in the settings screen.
- It is a very easy to use application.
- You do not need an internet connection to work.
- You can adjust the sensitivity with which the steps are detected.
- A stride length can be set to increase the accuracy of the distance traveled.
- The font size is considerably large.
- It is totally free.
- It would be interesting if pop-ups that require acceptance of privacy policies to be translated into Spanish.
- You could study the possibility of the app automatically setting the start and stop step count times on Android devices.
- You could consider showing the option to configure personal data the first time you use the app instead of having to investigate to do so.
- It would be interesting to review button labels for easy use for people with reduced vision.
- It would be interesting to fix the error that does not let access the settings using the screen reader on iOS.