To limit hotspot usage, you need to use different methods depending on your device. On iPhone, there is no built-in data cap for the Personal Hotspot, so you must rely on carrier controls, while on Android, you can use Google's Datally app to set a specific data limit in MB or GB.
How to limit hotspot usage on iPhone
The number of devices that can join Personal Hotspot depends on your carrier and iPhone model, and you should contact the carrier for more information. To manage what you can control, go to Settings > Personal Hotspot. Here you can set a Wi-Fi password, toggle Allow Others to Join on or off, and use Maximize Compatibility to adjust the connection type. To actually set a data limit, you must contact your carrier or use their app to check your plan's hotspot data allowances and set a cap on their end.
How to limit hotspot usage on Android with Datally
Google's documented hotspot limit tool is the Datally app. To use it:
- Open the Datally app.
- Tap Track hotspot.
- Enter a data limit in MB or GB.
- To turn the hotspot off, tap Go to Settings > Hotspot & tethering > Wi‑Fi hotspot and switch it off.
Datally is the official app for this feature, though Google does not specify which Android versions or devices it supports.
Set a strong hotspot password
Preventing unauthorized access is a key way to stop data drain. On iPhone, go to Settings > Personal Hotspot > Wi‑Fi Password and enter a secure password. On Android, the password is set in the hotspot settings under Settings > Hotspot & tethering > Wi‑Fi hotspot. A strong password ensures only your devices connect, helping you control your data usage.
Monitor and manage connected devices
Keeping an eye on who is connected helps you spot unknown users that might be using your data. On both iPhone and Android, you can view the list of connected devices in your hotspot settings. If you see a device you do not recognize, you can remove it or change your password to block it. For detailed steps, see our guide on seeing who is connected to your hotspot.
Check your carrier's hotspot data allowance
Many carriers have specific caps on hotspot data. For example, Google Fi documents plan-based tethering limits: Flexible uses the plan’s data budget for tethering, Unlimited Standard includes 25 GB of high-speed hotspot tethering, Unlimited Essentials has no tethering, and Unlimited Premium includes 50 GB of high-speed hotspot tethering. Always check your carrier's app or website to see your plan's hotspot data allowances and avoid overage charges.
Frequently Asked Questions
Can I set a data limit on my iPhone hotspot without using my carrier?
No. Apple does not provide a built-in data cap for Personal Hotspot. You must use your carrier's app or contact them to set a limit.
Does Datally work on all Android phones?
Google does not specify which Android versions or devices Datally supports. It is best to check the app's compatibility in the Google Play Store for your specific phone.
What happens if I exceed my carrier's hotspot data limit?
Most carriers will either slow your hotspot speeds to a lower rate or charge you for additional data. Check your plan's terms to know exactly what applies.
Can I see how much data each connected device is using on my hotspot?
Neither iPhone nor Android provides a built-in way to see per-device data usage on the hotspot. Some carrier apps may offer this feature.
Will setting a password stop all unauthorized hotspot usage?
A strong password prevents most unauthorized connections, but if someone guesses or obtains your password, they can still connect. Change your password regularly for better security.
