eSIM Guides

Best eSIM for Tanzania Safari (2026): Plans, Coverage & Networks

Which eSIM actually works on a Tanzania safari? We compare co:sim, Airalo, and Holafly on sourced pricing, look at Vodacom vs. Airtel coverage at Serengeti and Ngorongoro, and cover setup before you fly.

co:sim TeamSep 19, 202611 min

eSIM Guides

Holafly vs co:sim: Unlimited Data eSIM Plans Compared

Holafly sells unlimited-labeled data bound by a fair-use policy it doesn't fully disclose; co:sim sells fixed-data or daily-throttle plans instead. Here's what each provider's own terms actually say.

co:sim Team

Sep 19, 2026

6 min

eSIM Guides

Local Carrier SIM vs. Travel eSIM: Is Direct Actually Cheaper?

A local SIM is usually a bit cheaper per GB than a travel eSIM, but passport registration, local payment, and hassle erode the saving on short trips. Here is when going direct is genuinely worth it.

co:sim TeamSep 19, 20267 min

eSIM Guides

Best eSIM for Slovakia (2026): Plans, Prices & Coverage

Every eSIM reseller we checked for Slovakia connects through Orange and O2, not Slovak Telekom, so the real choice comes down to price, data and validity. Here's how co:sim, Airalo, Holafly, Ubigi and Yesim actually compare, sourced from each provider's own page, plus a free 1GB starter offer.

co:sim TeamSep 18, 202610 min

eSIM Guides

eSIM vs Airport SIM Card: Which Is Actually Cheaper and Faster?

Airport SIM counters routinely charge double to five times city-store prices. Here's what actually drives the markup, whether eSIM is really faster, and when a physical SIM still makes sense — with real, sourced prices.

co:sim TeamSep 18, 20267 min

eSIM Guides

Can You Install Two eSIMs From Different Apps on One Phone?

Newer iPhones and Pixels can run two active eSIMs at once, so a second provider can sit installed as a backup. Here is what actually determines the limit on your phone.

co:sim TeamSep 18, 20268 min

eSIM Guides

Airalo vs co:sim: Which eSIM Is Actually Cheaper for Your Trip?

Airalo increasingly prices by unlimited-per-day tiers; co:sim sells fixed-data plans per destination. This guide shows how to compare the two honestly for your specific trip, using each provider's own current pricing.

co:sim TeamSep 18, 20266 min

eSIM Guides

Best eSIM for Slovenia (2026): Plans, Prices & Coverage

Real, sourced prices from co:sim, Airalo, Holafly, Yesim and eSIM4 for Slovenia, plus network coverage facts and setup steps, so you can pick the right eSIM before your trip.

co:sim TeamSep 18, 202611 min

eSIM Guides

Best eSIM Apps Compared (2026): Airalo, Holafly, Saily, Nomad, co:sim

Airalo, Holafly, Saily, Nomad and co:sim all deliver a QR code that turns into data on arrival, but they price, cap and refund it very differently. Here's how the five actually compare, sourced from each provider's own current pages.

co:sim TeamSep 18, 202610 min

eSIM Guides

Best eSIM for French Polynesia: Tahiti & Bora Bora (2026)

Vini covers the most islands in French Polynesia but only activates after you land, and one field test found it disappointing in Bora Bora. Here's how it compares to a travel eSIM installed before you fly, with real prices.

co:sim TeamSep 18, 202610 min

eSIM Guides

Do All eSIM Apps Use the Same Mobile Network in a Country?

Two eSIM apps can both claim to cover a country while using entirely different local networks. Here is why coverage varies by provider and how to check before you buy.

co:sim TeamSep 18, 20267 min

eSIM Guides

Does an eSIM Work on a Jailbroken or Rooted Phone?

Jailbreaking or rooting doesn't disable the eUICC chip an eSIM relies on, so many modified phones can still install one. But it's unsupported, and the same modification can cause real data and connection problems.

co:sim TeamSep 17, 20268 min

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