eSIM Agent vs Travel Data Planner

Travel data, with a guide by your side. eSIM Agent helps you choose, install and set up a prepaid travel eSIM on your iPhone. Get clear guidance for your Home Line, Travel Line and cellular data settings, with animated setup guides when you need them. • Browse data plans for supported destinations • Install your eSIM with guided steps • Follow Home, Travel and Airplane Mode setup guides • Check the line settings and cellular signals your iPhone makes available • Track your travel plan and remaining data • Top up compatible plans before they expire • Get help from the Help Center and support chat • Choose a light or dark appearance New to eSIMs? Eligible first-time customers can try the starter offer in supported destinations, then top up the same eSIM before it expires. Offer eligibility, data allowance, validity and price are shown in the app. An unlocked, eSIM-compatible iPhone is required. Plans provide data only unless stated otherwise. Availability, coverage, network access and speeds vary by destination, device, carrier and local network conditions. Some settings require confirmation in iPhone Settings. Your home carrier's roaming charges may still apply if your Home Line remains on abroad.

How much mobile data does your trip actually need? Travel Data Planner turns the way you use your phone into a number you can shop with — and then helps you get online abroad without overpaying. DATA CALCULATOR Pick a traveller profile or set your own hours per day for maps, social, browsing, music, video calls, streaming and laptop tethering. Set your trip length and get a GB estimate with a 30% safety buffer built in, plus the plan size to look for. BEFORE YOU FLY A seven-item checklist for the things that go wrong at the airport: carrier unlock, eSIM support, installing the eSIM on Wi-Fi, offline maps, roaming switched off, app data limits, and keeping calls on Wi-Fi. GET CONNECTED An honest side-by-side of travel eSIM, carrier day-passes, local SIM cards and pocket Wi-Fi — what each is good at and what it costs you. TRAVEL ASSISTANT (optional, bring your own API key) Ask follow-up questions about your specific trip. The assistant sees the estimate and checklist you just built, so its advice matches your plan. You supply your own API key for Anthropic, OpenAI, Google Gemini or any OpenAI-compatible endpoint; messages go straight from your phone to that provider. There is no subscription and no account. ENCRYPTED BACKUP Export everything to a passphrase-locked file using Argon2id and XChaCha20-Poly1305. The key is derived on your device and never leaves it — which also means a lost passphrase cannot be recovered by anyone, including us. BUILT TO STAY OUT OF THE WAY No account, no tracking, no ads. Everything except the optional assistant works fully offline. Light and dark themes, and English or Japanese. Data estimates are broad averages, not guarantees — actual use varies by app, quality settings and network. That is exactly why the calculator adds a buffer.