Compared ยท October 2026

The best data usage apps,
compared honestly.

Five data usage trackers for iPhone, Android and Mac, what each one is good at, and when your phone's own settings are enough. We make Dataly, so we say where the others are a better fit.

Comparison table

AppPlatformsPer-app usageMultiple devicesPriceBest for
DatalyiPhone, Android, MacAndroid and MacYes, pairs your devices over Wi-FiFree (ads on phone)Seeing every device you own in one place
My Data ManagerAndroidYesNoFreeMobile, Wi-Fi and roaming on one Android phone
GlassWireAndroid, WindowsYesNoFree on AndroidPer-app usage plus a firewall
DataManiPhone, Apple WatchNoNoPaidA simple iPhone widget with billing-cycle alerts
TripModeMac, WindowsYes, and can block appsNoSubscriptionStopping a laptop from eating a hotspot plan

Checked October 2026 against store listings and reviews. Prices and features change, so check the store before you buy.

The short answer

If you only use one Android phone, My Data Manager or GlassWire will do. If you want an iPhone widget, DataMan. If you need to stop a laptop eating your hotspot, TripMode. If you want to see your iPhone, Android and Mac together, Dataly is the only one here that does it.

Start with what your phone already shows

Before installing anything, check the built-in counters. On iPhone, Settings > Cellular lists mobile data per app for the current period. On Android, Settings > Network & internet shows usage per app and lets you set a warning and a hard limit. What neither does is keep a daily history, count Wi-Fi in a useful way, or add up your other devices. That is where the apps below come in. More in How to Track Your Data Usage.

The apps

Dataly: every device in one place

Free on iPhone, Android and Mac. Tracks Wi-Fi and mobile data by day and month on each device, shows per-app usage on Android and Mac, and pairs your devices over Wi-Fi with a short code so you see each one side by side with a combined total. Set a daily limit and get an alert when you pass it. Usage stays on your devices. The phone apps show ads; the Mac app has none. How it works

My Data Manager: a solid single Android phone tracker

A long-running Android app that tracks mobile, Wi-Fi and roaming data with history graphs and per-app usage. A good fit if one Android phone is all you need to watch.

GlassWire: per-app usage with a firewall

Best known on Windows, with an Android app that became free for everyone in 2024. It shows which apps use data and lets you block apps from the network. Choose it if blocking matters more to you than tracking several devices.

DataMan: the iPhone widget

A paid iPhone app with an Apple Watch companion that tracks cellular and Wi-Fi usage against your billing cycle and warns you as you approach your cap. Like every iPhone app, it cannot show usage per app.

TripMode: for laptops on a hotspot

A Mac and Windows app that detects when you join a phone hotspot or limited network and lets you choose which apps may use it. It shows usage per app. It is a subscription, and it is about controlling a laptop rather than tracking every device you own. Dataly for Mac is the free option if you only need to see usage: Dataly for Mac.

Looking for Google's Datally? It was shut down in 2019. Here is what to use instead.

Questions

What is the best app to track data usage on iPhone?
For a total across your devices, Dataly: it tracks the iPhone's Wi-Fi and mobile data by day and month and adds your Mac and Android phone when you pair them. For a single widget with billing-cycle alerts, DataMan. No third-party iPhone app can show usage per app, because Apple does not allow it; the iPhone's own Settings > Cellular shows that.
What is the best data usage app for Android?
My Data Manager and GlassWire both show per-app usage on one Android phone. Dataly shows per-app usage too and also adds your other devices, including iPhone and Mac.
Is there a data usage monitor for Mac?
Yes. Dataly for Mac is free and keeps a daily and monthly history, which macOS does not. TripMode is a paid option that can also block apps while you are on a hotspot.
Which app shows data usage across all my devices?
Dataly is the only app in this comparison that runs on iPhone, Android and Mac and adds them together, by pairing your devices over Wi-Fi. Router apps can show every device on a network, but only on that one network.

See it on your own devices.

Dataly shows your daily and monthly data use on each device you own, and adds them up in one place.