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Best Unlimited Data Esim Apps

250+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated September 2026

Every iPhone needs a few good unlimited data esim apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Unlimited Data Esim Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Airalo: eSIM for travel & dataAiralo: eSIM for travel & dataFree4.6★ (101K)NoNoSep 2026
2Holafly eSIM: Unlimited DataHolafly eSIM: Unlimited DataFree4.8★ (38K)NoNoSep 2026
3T-Mobile Prepaid eSIMT-Mobile Prepaid eSIMFree4.9★ (16K)NoNoSep 2026
4Saily: eSIM Data for TravelSaily: eSIM Data for TravelFree4.7★ (12K)YesNoSep 2026
522SIM - eSIM Data Unlimited22SIM - eSIM Data UnlimitedFree4.5★ (564)YesNoSep 2026
6eSIM io: Travel Internet DataeSIM io: Travel Internet DataFree4.3★ (1.4K)YesNoSep 2026
7Roamless: eSIM Travel InternetRoamless: eSIM Travel InternetFree4.8★ (5.3K)NoNoSep 2026
8Ubigi: Travel eSIM mobile dataUbigi: Travel eSIM mobile dataFree4.6★ (9.9K)NoNoSep 2026

Top Picks for Unlimited Data Esim

Airalo: eSIM for travel & data#1

Airalo: eSIM for travel & data by Airalo

Stay connected anywhere
Editor's Choice
✈️ Travel
4.6😊(101K ratings)
Free
#48in Travel
Airalo: eSIM for travel & data screenshot 1
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Airalo: eSIM for travel & data screenshot 5
Airalo: eSIM for travel & data screenshot 6

Stay connected globally with digital SIM cards for your travels. Easily install an eSIM and get online in over 200 countries and regions without roaming fees. Enjoy affordable data, call, and text services.

What We Love

  • 🚀 Convenient and easy to use
  • 💡 Flexible and affordable data plans
  • 👍 Seamless connectivity across multiple countries
  • 🚀 Instant activation upon arrival
  • 👍 Helpful customer support

Room to Improve

  • 🐛 Occasional connectivity issues
  • 🐛 Confusing setup process
  • 🐛 Lack of local phone number support
  • 🐛 Unreliable customer service response times
Holafly eSIM: Unlimited Data#2

Holafly eSIM: Unlimited Data by HOLAFLY LIMITED

Travel SIM Card & WiFi Hotspot
Strong Contender
✈️ Travel
4.8😐(38K ratings)
Free
#84in Travel
Holafly eSIM: Unlimited Data screenshot 1
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Holafly eSIM: Unlimited Data screenshot 6

Stay connected globally with digital SIM cards offering unlimited data for travel. Avoid expensive roaming fees and enjoy easy installation and activation for seamless internet access in over 200 destinations.

What We Love

  • 🚀 Easy to use
  • 🚀 Reliable service
  • 🚀 Excellent customer service
  • 🚀 Unlimited data
  • 🚀 Seamless installation
  • 🚀 Works well in multiple countries

Room to Improve

  • 🐛 Unreliable connectivity
  • 🐛 Slow speeds
  • 🐛 Lack of transparency on fair use policies
  • 🐛 Difficult to get refunds
  • 🐛 Buggy app experience
  • 🐛 Poor coverage in some areas
T-Mobile Prepaid eSIM#3

T-Mobile Prepaid eSIM by T-Mobile

T-Mobile US
Worth Considering
🔧 Utilities
4.9😐(16K ratings)
Free
T-Mobile Prepaid eSIM screenshot 1
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T-Mobile Prepaid eSIM screenshot 6

Easily activate T-Mobile Prepaid service on your compatible iPhone using eSIM. Manage multiple lines on one device or get a local US number for travel. Get connected to the T-Mobile network quickly and conveniently.

What We Love

  • 🚀 Easy and fast setup
  • 👍 Convenient for travelers
  • 🚀 Instant activation
  • 👍 Prepaid service option

Room to Improve

  • 🐛 Crashes and errors during setup
  • 🔒 Security concerns with data access
  • 🔋 Slow data speeds
  • 👎 Difficult to use for non-US customers

More Unlimited Data Esim apps to explore

FAQ about Unlimited Data Esim

What are the best unlimited data esim apps for iPhone?
Airalo: eSIM for travel & data tops our unlimited data esim apps ranking as of September 2026, with a 4.6-star average from 101K App Store ratings, and it's free to download.
Yes — 20 of the top unlimited data esim apps we rank are free to download, including Airalo: eSIM for travel & data and Holafly eSIM: Unlimited Data.
Airalo: eSIM for travel & data has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 250+ unlimited data esim apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
An Airalo eSIM plan provides you with mobile data, call, and text services. You can choose from prepaid local, regional, or global eSIM plans to get online in over 200 countries and regions. The plan includes a specific amount of data valid for a set period, and you can top up or download a new eSIM if needed.
eSIMs from Airalo are affordable, starting from US$4.50 for 1GB of data. The final cost depends on the amount of data and the validity period you choose for your plan. There are no hidden fees, ensuring transparent pricing for your global connectivity needs.