Plans, usage and top-ups
Checking what is left, adding more data, and how validity and speed limits work.
Check how much data you have left
Open My eSIMs and select the plan. Check the available usage, status and validity information, then refresh while connected to the internet. If the number has not changed Network usage reports can arrive late. The value shown may not include your latest session or download. An unavailable reading is not the same as zero usage or unlimited data. Your phone's counter is useful for spotting heavy apps, but its time period and counting method may differ. See "Why our usage figure differs from your phone's". Before topping up Check both remaining data and expiry. More data does not automatically mean more time. Open the top-up options for this eSIM and review the exact offer before buying. Some eSIMs have no eligible top-up. If usage looks wrong or cannot be refreshed, contact support with the eSIM, the time of the reading and what you expected. See "Top up a plan that has run out".
Top up a plan that has run out
A supported top-up adds service to an existing eSIM. Start from that eSIM's own top-up options, rather than buying a separate plan and assuming it will be added to the same profile. Before buying 1. Open My eSIMs and select the correct eSIM. 2. Open its top-up options, if available. 3. Check coverage, data, validity, price and whether the offer replaces the current plan. 4. Review the payment total and confirm. Do not assume a top-up extends your expiry. Check the validity shown for the exact offer. Existing data, expiry and rollover behaviour can differ by plan. If the terms are unclear, ask support before paying. Already out of data? Use Wi-Fi or another connection. If you use your home SIM abroad, check its roaming charges first. Payment completed but data missing Refresh the top-up order and eSIM. Application may take time. Do not buy the same top-up again while it is processing. Contact support with the top-up order reference if the status remains unclear.
How validity periods are counted
Check the activation and validity terms for the exact plan before buying or installing it. Installation, network activation and the start of paid validity are related but are not always the same event. What to check - What starts the validity period: installation, activation or another event specified by the plan. - Whether there is a deadline to install or activate after purchase. - The duration and any end date shown for the plan. - The countries covered, including places you will transit through. Do not assume every plan can wait a year, starts only at your final destination or measures a day in the same way. Ask support to check your plan if those details are unclear. After activation A validity period generally keeps running while the line is turned off or you are using Wi-Fi. Turning off mobile data does not pause a plan. Top-ups Check the exact top-up's validity and replacement terms. Do not assume unused data rolls over or that buying more data extends the original expiry. See "Top up a plan that has run out".
Fair use and speed limits on your plan
An unlimited plan can have a full-speed allowance or other fair-use conditions. Check the terms for the specific plan; there is no single speed or daily allowance for every SimFuse plan. Before buying Look for the full-speed allowance, any reduced speed, reset period and hotspot conditions. If a detail is not shown or is unclear, ask support to check it before you buy. Do not treat a missing value as a promise of unrestricted full-speed data. If your connection slows A fair-use threshold is one possible cause. Signal, congestion, device settings and VPNs can also affect speed. See "My connection is very slow". Reduced-speed service may not be sufficient for every app or task. Usage reports can be delayed, so the app may not immediately show the activity that reached a threshold. Hotspot traffic uses the same connection and can consume the plan's allowance where tethering is supported.
Why our usage figure differs from your phone's
The SimFuse app and your phone may show different usage because their counters cover different lines, periods or reporting times. Compare like for like - Confirm that the phone counter is for the SimFuse line. - Compare the same dates. iPhone counters may need a manual reset; Android devices can use a configured billing cycle. - Include hotspot traffic and background downloads. - Refresh SimFuse with an internet connection and allow for delayed network reporting. The plan balance is based on network records, but the latest usage may not have reached the app yet. Neither an old reading nor a missing reading proves that data remains. If the gap is large or persists, contact support with both readings, their dates and the eSIM concerned. Do not run repeated large downloads just to test the counter. See "Check how much data you have left".
Can I use one plan on two devices?
Do not install the same eSIM profile on two devices or assume its QR code can be reused. Installation and transfer rules depend on the profile and device. Share a connection If your plan and device support hotspot, the phone with the eSIM can share its data with another device. That traffic uses the same plan allowance. See "Share your connection with hotspot or tethering". Independent connections If both devices need their own connection, check each device's compatibility and buy a separate eligible plan for each. You can keep purchases in the same SimFuse account. Changing phones Keep the eSIM installed on the old phone while support checks whether transfer, reinstallation or a replacement is possible for that specific eSIM. Phone-to-phone transfer features do not guarantee support for every travel eSIM. Do not delete the old profile or scan its code on the new phone as a test. See "Deleting an eSIM, and when not to".
Set a data warning on your phone
A phone's data warning can help reduce unexpected usage, but it is not a real-time reading of your SimFuse balance. Android Look in Settings > Network & internet > SIMs, or on Samsung under Connections > Data usage. Choose the correct line and look for a data warning, limit or billing-cycle setting. Availability and names vary by device. A hard limit can stop mobile data even when the plan still has data left. Check this setting if the connection unexpectedly stops. iPhone and iPad Use the cellular usage counter and, where helpful, Low Data Mode. The standard settings do not provide the same configurable hard data cap as some Android phones. Reduce background usage Download maps on Wi-Fi, limit cellular app updates and cloud backups, and check hotspot usage. Check the plan in SimFuse regularly rather than relying only on a warning or push notification. See "Check how much data you have left".