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To stop Safari using your mobile plan while keeping it available on Wi-Fi, open Settings > Cellular, find Safari in the app list, and turn its switch off. Depending on your region, the menu may be called Mobile Data or Mobile Service. With Safari’s cellular access disabled, it can use Wi-Fi but not cellular data.
Turn off cellular data for Safari
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Open Settings.
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Tap Cellular, Mobile Data, or Mobile Service—use the equivalent label shown on your iPhone.
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Scroll to the app list. If necessary, tap Show All.
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy. -
Find Safari and switch it off.
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Connect to Wi-Fi to browse. Safari’s switch blocks its cellular data access; it does not block Wi-Fi.
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Apple documents this per-app control in its iPhone cellular data settings guide and iPhone User Guide. Labels and available options can vary with region, iPhone, carrier, and cellular configuration.
Choose the setting that matches what you want to restrict
| Setting | Scope and effect |
|---|---|
| Safari cellular switch off | Blocks cellular data for Safari only. Safari can still use Wi-Fi. Apple documents the per-app control in its cellular data settings guide. |
| Cellular Data off | Stops cellular data for the phone’s apps and services that depend on it; this is broader than restricting Safari alone. Wi-Fi remains a separate connection. See Apple’s cellular data settings guide. |
| Wi-Fi Assist off | Stops Wi-Fi Assist from switching supported foreground use to cellular when Wi-Fi is poor. It is separate from Safari’s app switch. See Apple’s Wi-Fi Assist guidance. |
| Low Data Mode | Reduces selected background and automatic network activity; it is not a Safari-only cellular block. It can be set separately for cellular and Wi-Fi. See Apple’s Low Data Mode guidance. |
Understand Wi-Fi Assist
Wi-Fi Assist is a separate setting that Apple says is on by default. When Wi-Fi is poor, it can use cellular to keep a Safari page load going. If you want to avoid that fallback, go to Settings > Cellular (or the equivalent menu), scroll down, and turn off Wi-Fi Assist. Apple says the cellular icon appears when Wi-Fi Assist is active.
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Wi-Fi Assist applies to apps running in the foreground. Apple says it does not activate while data roaming or for background downloads, and it does not work with some third-party apps that stream audio or video or download attachments. For details, see Apple’s Wi-Fi Assist guidance.
Check Safari usage or troubleshoot pages that will not load
View data use
Open Settings > Cellular (or the equivalent menu) and review the app list. Tap Show All if it appears. iPhone’s displayed statistics can be reset, so they may not match your carrier’s billing period. Apple recommends checking with your carrier for the most accurate current-period usage.
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If Safari cannot load a page
With Safari’s cellular switch off, Safari needs a working Wi-Fi connection to transfer data. Check that Wi-Fi is connected and can load pages. If you want Safari to work over cellular again, return to the app list and turn its switch on.
Know what the Safari switch does not control
Apple lists System Services usage separately and does not provide individual cellular off switches for those services. The Safari setting controls Safari’s app-specific cellular access; it is not a control for every kind of network traffic generated by the iPhone.
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What Low Data Mode changes
Low Data Mode is a way to reduce some data use, not to make Safari Wi-Fi-only. Apple says it can restrict background network use and pause automatic updates, downloads, backups, and iCloud Photos updates; supported apps may also reduce streaming quality. The setup path can vary with the cellular connection and configuration. See Apple’s Low Data Mode guidance.
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