Do casino apps drain battery and data?

Do casino apps drain battery and data? The short answer

Casino apps use battery and data in the same way as other apps with moving graphics and, sometimes, video. They are not unusually heavy, but how you play matters a great deal. A quiet half-hour on a classic slot over Wi-Fi uses little. An evening of live roulette on 4G with the screen at full brightness uses a lot of both.

These are relative rankings, not lab figures. Your phone’s settings will show the real numbers for your device, as explained below. For the wider picture of playing on a handset, see our mobile casino guide and the answer on whether you can play casino games on your phone.

How much data do casino apps use?

Data use splits into three parts: the app download, the assets each game loads the first time you open it, and the traffic while you play. For an RNG game, once the graphics and sounds are on your phone, each round mainly sends your stake and receives the result from the casino’s server, which is a tiny amount of data. For a live dealer game, the app streams video continuously, so data use climbs for every minute you watch.

UK rules also limit how fast games can run, which indirectly caps how much data spins can use. Since 31 October 2021 each slot spin must take at least 2.5 seconds, with no autoplay or turbo, and since 17 January 2025 other online casino games must allow at least 5 seconds per game cycle. The Commission’s summary of the slot design rules (opens in a new tab) and its decision on the speed of play for other casino games (opens in a new tab) set these out, and our page on the 2.5-second spin rule explains them for players.

Worked example: measuring your own data use

Phone counters are more reliable than any rule of thumb. Suppose you reset your mobile data statistics, play live roulette on 4G for 30 minutes, and the counter shows 300 MB for the app. That works out at about 600 MB an hour, so a 5 GB monthly allowance would cover roughly eight hours of that game and nothing else. The 300 MB here is only an illustration; your own figure depends on the stream quality, your connection and the app.

Casino app download sizes in the UK

The download is a one-off data cost, plus updates. Here are the sizes listed on the UK App Store for our partner casinos’ apps, checked on 20 October 2026. Android sizes vary by device and are not listed the same way on Google Play.

A small download does not mean low data use while playing, because games load their own assets once you open them. Details on each app are on our Coral app, PlayOJO app and Casumo app pages.

Why casino apps drain battery on your phone

Battery drain in any game comes mainly from four things: the screen, the processor drawing graphics, the radio sending and receiving data, and any background activity. With casino apps, the screen is usually the biggest factor because sessions keep it on continuously. Video slots with heavy animation make the processor work harder, and live streams keep both the processor and the mobile radio busy.

Background activity is worth checking. PlayOJO’s iOS listing states that the app may use your location even when it is not open, which can decrease battery life. Gambling apps can use location to help confirm where you are playing from, but you can review the permission in your phone settings. App privacy labels list location use for several brands: Coral’s iOS label lists coarse location, Ladbrokes’ lists precise location, and the Google Play data safety sections for Casumo and 10bet say they may collect or share location data.

UK rules require full-screen gambling apps that hide your phone’s clock to show the time of day or the elapsed time, wherever practicable. Glancing at it is an easy way to notice both your session length and your battery use. The Commission’s Remote Gambling and Software Technical Standards (opens in a new tab) contain the requirement.

How to check a casino app’s battery and data use

1. On an iPhone, open Settings, then Battery, and scroll to the list of apps to see each one’s share of battery over the last 24 hours or 10 days.
2. For data on an iPhone, open Settings, then Mobile Service (or Mobile Data), and scroll to see data used by each app since the last reset.
3. On Android, open Settings, then Battery, then Battery usage. Menu names vary by manufacturer.
4. For data on Android, open Settings, then Network and internet, then your SIM, then App data usage.
5. Reset or note the current figures, play as you normally would, then check again to see what a typical session costs.
6. If an app uses battery while closed, review its location and background refresh permissions.

How to reduce battery and data drain from casino apps

• Play on Wi-Fi where you can, especially for live dealer games.
• Lower screen brightness or turn on Low Power Mode or Battery Saver.
• Choose a lower video quality in live games if the app offers that setting.
• Set location access to While Using the App rather than Always, if the app allows it.
• Turn off background app refresh for casino apps you rarely use.
• Close the app fully after a session instead of leaving it open in the background.
• Keep apps updated; updates use data but can fix bugs and improve efficiency.

If storage is tight, a mobile site may suit you better than an app, since there is nothing large to install. Our guide to casino apps vs mobile sites and the side-by-side app vs mobile site comparison weigh the trade-offs.

What if your battery or data runs out mid-game?

For most online casino games, the result is decided on the casino’s server the moment you place the stake, so a dead battery or a dropped connection should not cost you a win. When you reconnect, the game normally shows the completed round or lets you finish it. Live games behave differently because the round carries on in the studio; check the game’s help screen for how disconnections are handled. Our answer on losing connection mid-game has more detail, and reading game help screens shows where to find the rules.

Is it safe to leave casino apps running in the background?

It is generally safe, but there is little reason to. An app running in the background can still use battery and, depending on permissions, location. It also keeps gambling one tap away, which some people find makes sessions longer than planned. App privacy labels describe what each app collects, such as financial information, contact details and usage data. Our guides to casino data privacy and whether casinos share your data explain your rights.

Battery drain as a session reminder

A phone that has gone from full to half while you play is a sign of a long session. Gambling is entertainment that costs money, and the house edge means losses are likely over time. Tools such as reality checks, which show elapsed time at intervals you choose, and deposit limits help keep sessions in proportion. Our safer gambling hub lists them all, and the National Gambling Helpline on 0808 8020 133 is free and open 24/7.

Licensed casino apps with lighter and heavier downloads

Both apps below are from UKGC-licensed operators and available on iOS and Android. The offers were checked on 5 October 2026; 18+, new customers only, terms apply. Coral: deposit with a qualifying method and bet £10 on slots to get 100 spins at 10p on selected games, accepted within 48 hours, valid 7 days, no wagering on winnings. PlayOJO: 80 spins at 10p on Big Bass Bonanza with a first deposit of at least £10, winnings paid in cash, not available in Northern Ireland. Compare the full list on the latest casino offers, or browse more answers on our questions hub.

18+. Gambling should be entertainment that costs money, not a way to make it. Set a deposit limit before you play: how to set deposit limits. Free, confidential help: National Gambling Helpline 0808 8020 133.