If you reach the end of the month and your data allowance disappears without you quite knowing why, there's a good chance there's an app involved. gobbling up megabytes in the background without you noticingYou don't need to be a tech expert to find out: Android and iOS have very clear tools to see which apps use the most data, both when you're using them and when they're running "in secret."
Learning to monitor this consumption helps you to control your habitsAvoid surprises on your bill and extend battery lifeMany social media, streaming, or browsing apps use up data and battery even when you don't have them open, so it's a good idea to know how to detect them and stop them if necessary.
What is background data and why should you care?
When we talk about background data we mean the Internet traffic generated by apps while you're not using themIn other words, it's not the data consumption when you have Instagram open or are watching YouTube, but what the app uses when it's minimized or seemingly closed.
This traffic is used for the mobile phone Download notifications, update your feed, sync files, or receive new messages without having to open anything. It's convenient, but if your data plan is limited or the app is poorly optimized, it can become a real data drain.
On Android it is usually called “background data”, “background synchronization” or “background data”On iOS, it's called "Background Refresh." The process is the same: the app connects to the internet periodically without you having to do anything.
In addition to the impact on the tariff, this traffic implies that the mobile Keep the processor and data connection active longer than necessary, with two clear effects: increased battery consumption and, sometimes, slightly worse performance if you have many apps using resources.
Why do some apps consume so much data and battery?
Some applications, by design, need to connect to the server constantly, and it shows. This is usually due to... background functions such as continuous synchronization, real-time notifications, or autoplay of media content.
Social media and video platforms are a perfect example: YouTubeTikTok, Facebook, Instagram, or streaming services They are constantly downloading photos, videos, and ads, even if you only open the app for a moment.
Recent reports on mobile usage indicate that A large portion of data traffic is used for social media and video.And apps like Facebook, WhatsApp, and TikTok are also among those that drain the most battery on average, precisely because of that continuous activity.
Furthermore, many studies have shown that Most apps continue to work even if you think you're not using them.This significantly increases overall power consumption. Add to that GPS, Bluetooth, and Wi-Fi that are always on, and high screen brightness, and the result is a recipe for running out of data and battery prematurely.
This doesn't mean you have to stop using your favorite apps, but it is important that Find out which ones are using the most money and adjust their permissions accordingly., their synchronization options and the quality of the content they download.
How to see which apps are using data on Android
Android includes a fairly comprehensive panel to find out Which apps are consuming the most mobile data and during what periodThe exact route may vary slightly depending on the brand (Samsung, OnePlus, Google Pixel, etc.), but the idea is very similar for all of them.
On most current mobile phones, the standard path is to go to Settings > Network and Internet > Internet > Use of dataFrom there you will see a graph with the total consumption in the current cycle and, below, a list of apps ordered by the amount of data used.
In many models you will also find the access like this: Settings > Network & Internet > Internet > App data usageOr, on phones with custom skins, something like Connections > Data usage > Mobile data usage on Samsung, or Mobile network > Data usage on OnePlus.
In that list, each row shows How many megabytes or gigabytes has each application used? during the selected period (last month, last few weeks, etc.). You can change the interval by tapping the date or billing cycle that appears at the top of the screen.
Very important: on this panel Only mobile data traffic is counted, not WiFi usage.This is great for detecting which apps are eating up your data allowance outside the home, regardless of how much they consume when you're connected to a wireless network.
How to tell if an app is using data in the background on Android
Once you know which apps consume the most data, the next step is to see how much of that usage is attributable to... foreground usage and how much background usageThat's where the real key to turning off the tap lies.
Within the data usage screen itself, tap on the app you're interested in. A tab will open where Android typically displays a breakdown with “Foreground” and “Background”The sum of both figures is the total spent by that application in the interval you have selected.
If background usage is very high for an app you hardly ever use, it's a clear sign that It's connecting too much in the background, probably to sync or display ads.In that case, you can take matters into your own hands.
On that same screen you'll see a switch to allow or block background dataIf you disable it, the app will only use mobile data when it's open; when you close it, it will stop connecting automatically. You'll lose real-time notifications and automatic updates, but you'll save a significant amount of data.
Another option, in many models, is to activate the system's "Data saving" modeThis feature generally limits background traffic and only allows unrestricted use for apps you mark as "unrestricted." It's a very powerful tool if you're running low on data.
Controlling data usage on iPhone (iOS)
On iOS, the approach is similar, although the menus are slightly renamed. From your iPhone, you can check Which apps use the most mobile data? and disable their access if you deem it necessary.
To view it, open Settings > Mobile dataAt the very top you have the switch to completely turn mobile data on or off, which is useful if you want your iPhone to use only WiFi for a while.
Below you will find a section with the use of data from the current period And right below that, the list of installed apps with the amount of megabytes or gigabytes consumed by each one. Usually, the ones that use the most data appear first, so it's easy to identify the "data hogs."
Next to each app you'll see a switch that lets you block access to mobile dataIf you turn it off, that app will only be able to connect via WiFi, which is very useful for streaming services or social networks that you prefer to reserve for when you are at home.
If you enter System servicesWithin that same screen, you will get a breakdown of the traffic generated by internal functions of iOS (time settings, push notifications, updates, etc.). You can't usually disable them one by one, but it's useful to know if something unusual is happening.
How to limit background refresh on iPhone
In addition to the usage list, iOS lets you decide Which apps can update in the background and with what type of connectionThis setting is key to cutting both data usage and battery consumption.
Go to Settings> General> Background updateYou'll see a list of apps with a switch next to it; if you turn it off for a specific app, It will stop using data when you're not using it.and it will update automatically when you open it.
At the top of that same screen you can tap again on “Background update” and choose between three options: off, Wi-Fi only, or Wi-Fi and cellular data. It's a quick way to tell your iPhone if You want apps to sync only when there's WiFi or also using your mobile plan.
If you choose "Off", no apps will update in the background; if you select "WiFi", they will only update on wireless networks; and with "WiFi and mobile data" you will maintain the default behavior, with more convenience but also more consumption.
You can always return to this section and activate or deactivate specific apps If you notice that one of them is using too many resources, it's a very flexible setting that's worth checking from time to time.
See which apps are using battery, RAM, and storage on Android.
Background data usage is often accompanied by increased consumption of other resources. Android also lets you check this. Which apps use the most battery, RAM, and storage space? without installing anything extra.
For storage, go to Settings > Storage > Applications (or a similar menu) and sort the list by size. That way you'll know Which apps take up the most space?If any of them have grown too large, you might want to clear their cache or data.
If you suspect your battery is draining faster than normal, go to Settings > Battery > Battery usage. There you will see the consumption of the last 24 hoursThe apps are ordered according to the amount of energy they've used. If an app you rarely open appears high up with a lot of background activity, it might be faulty or poorly designed.
Regarding RAM, you can use the Developer Options If you have them enabled. On many phones, in Settings > System > Developer options > Running services You'll see which services and apps are using RAM at that moment, even if you haven't opened them.
Since Android 12, there is also usually a section Memory > Memory used by applicationswhere you can check the RAM used by apps in the last few hours (3, 6, 12 or 24), sorting by average or maximum usage to catch those that go over the limit.
How to restrict background data on Android (by app and system-wide)
If you've already identified the culprits, it's time to take action. Android gives you two main options: limit app by app or activate a global data saving mode for all mobile connectivity.
For specific apps, from Settings > Networks & Internet > Mobile networks > App data usage (or equivalent routes depending on the brand), select the application and disable the option “Background data” or “Allow background data usage.” From that point on, it will only use data when you open it.
On Samsung phones, the most common path is Settings > Connections > Data usage > Mobile data usageYou tap on the desired app and there you'll find the switch “Allow background data usage” to turn it off if you need to.
If you want to go a step further, you can pull the Android's "Data Saver"You'll usually find it in Settings > Network & Internet > Data saverWhen activated, the system blocks most background traffic from applications when they are not in use.
Within that menu you will also see the option “Unrestricted data” or similarwhere you can select up to a few apps to have full data freedom even when saving mode is on (for example, WhatsApp or email if you don't want to miss important notifications).
If at any point you regret it or need everything to go back to how it was before, simply Turn off Data Saver or reactivate background data for the app you had blocked, following the same menu path.
How to check WiFi data usage on Android
We're usually worried about mobile data because that's what the plan pays for, but it's also useful find out what's eating your WiFiespecially if you have a monthly data limit at home or suspect that an app is downloading too much.
On many Android phones you can check this from Settings using the internal search bar: type something like “Using data without a mobile network” or “Using WiFi data”Depending on the model, a specific section will be displayed showing the wireless network consumption.
In other layers, simply go to the area of WiFi within Networks and Internet From there, you can access a traffic statistics section. The structure is usually similar to that of mobile data: a list of apps with their total usage and a breakdown by foreground and background.
This information helps you identify if there are apps that, although they don't use up your mobile data allowance, They are overloading the home network or downloading excessively (for example, automatic backups, cloud services, or large updates).
Just like with mobile data, you can tap on each app and adjust its permissions to restrict automatic downloads or very aggressive synchronizations, and thus have a little more control over what happens when you connect to WiFi.
Which apps tend to use the most data and how to limit them
The exact list of "data hogs" will vary depending on how you use your phone, but there are a number of common candidates that are almost always at the top of the list. The important thing is Understand why they spend so much and what you can do to cut back..
Video platforms like Netflix or TikTok They particularly stand out for: playing high-resolution videos consumption skyrocketsAnd we're talking gigabytes per hour in some cases. The higher the resolution and the longer you watch, the bigger the data binge.
Social networks InstagramFacebook or Snapchat They're also big data eaters. They load high-quality photos, videos, stories, ads, GIFs, and all kinds of dynamic content, often in the background so that everything is ready when you open the app.
In the case of music streaming services like SpotifyData consumption will depend on your audio quality settings. Listening to songs at very high quality uses a significant amount of data; lowering the quality or downloading playlists over Wi-Fi can drastically reduce your mobile data usage.
map apps like Google Maps or Waze They can also consume a significant amount of data if you drive many kilometers with navigation active, as they have to load maps, traffic information, and real-time routes. Downloading offline maps greatly reduces the amount of data needed for your journeys.
Finally, don't forget that system updates and downloads of large apps These tasks can eat up a significant portion of your data allowance if done over mobile data. It's a good idea to configure your phone to perform these tasks only over Wi-Fi, and check in Google Play or the App Store that automatic updates are limited to wireless networks.
When is it appropriate to use cleaning apps or additional monitoring?
With the system's own tools you can perfectly control Which apps use the most data, battery, or memory?However, it is true that for some users the manual review can be somewhat tedious.
There are third-party applications that promise automatically monitor usage and suspend problematic appsSome also clean caches, delete junk files, and offer recommendations to improve performance and battery life.
If you choose a tool of this type, make sure it is from a reliable developer, with good ratings and without excessive suspicious permissionsRemember that, in the end, it's just another app running on your phone, and it can also consume resources.
In many cases, spending a few minutes a month reviewing the native Android or iOS settings will be more than enough to keep background consumption under control without relying on additional solutions. For those who prefer to automate the task, a reliable app can help monitor consumption and receive real-time alerts.
If you learn to navigate your mobile's data usage menus and distinguish between foreground and background traffic, you will be able to Detect in time the apps that abuse your data plan, restrict their access, and adjust their settings.With just a few taps, you'll save money, save battery, and, incidentally, feel a little more in control of your phone.
