App review · iOS & Android · 2026
eSIM App Comparison: HelloRoam vs Airalo vs Holafly vs Saily vs Nomad
The app you use to install and manage your travel eSIM affects every step of your trip. This comparison covers installation flow, data tracking, in-app support access, and unique features per provider, based on the current app versions in June 2026. We publish no app store ratings, because we do not collect them.
From the matrix
HelloRoam — Top composite rating
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App profiles
App size, update cadence and standout feature
Ranked on the App dimension of our rubric, which scores install flow, data tracking and in-app support.
| Provider | App Score | App Size | Update Cadence | Standout Feature |
|---|---|---|---|---|
| 1HelloRoam | 5.0 | Not published | Not published | In-app purchase, top-up, add-destination, usage alerts, 24/7 chat |
| 2Airalo | 4.7 | ~45 MB | Monthly | Airmoney credit system, referral rewards |
| 3Saily | 4.5 | ~60 MB | Monthly | Built-in VPN via NordVPN, privacy-first design |
| 4Holafly | 4.1 | ~35 MB | Bi-monthly | Direct WhatsApp chat from app, unlimited plan focus |
| 5Nomad | 3.9 | ~25 MB | Quarterly | Lightest weight, lowest overhead, simple purchase flow |
Installation flow
Step-by-step eSIM setup across all five apps
Every app follows the same 6-step flow. Differences lie in step 3 (payment options) and step 4 (QR vs automatic).
Step 6 (enable data roaming) applies to all providers. This must be set in your phone Settings for the eSIM line, not inside the app. Forgetting this step is the most common reason for an eSIM that shows signal but no internet.
| Step | HelloRoam | Airalo | Holafly | Saily | Nomad |
|---|---|---|---|---|---|
| Step 1 | Select destination | Search country | Select destination | Pick country | Choose country |
| Step 2 | Select plan | Select plan (GB/price) | Select plan (days) | Select plan (GB/days) | Select plan (GB) |
| Step 3 | Pay in-app | Pay (credit/Airmoney) | Pay (credit/PayPal) | Pay (credit/PayPal) | Pay (credit only) |
| Step 4 | Install in app or QR from web | Auto install or QR scan | QR code in email + app | Auto install from app | QR code in app |
| Step 5 | Enable in Settings | Enable in Settings | Enable in Settings | Enable in Settings | Enable in Settings |
| Step 6 | Set data roaming ON | Set data roaming ON | Set data roaming ON | Set data roaming ON | Set data roaming ON |
Step 4 highlighted: HelloRoam installs from its app or via QR from the web. Airalo and Saily support automatic installation on compatible iOS devices (iOS 17.4+) and select Android models. Holafly and Nomad require QR code scanning for all devices.
In-app features
Feature-by-feature comparison matrix
10 features that matter for daily use while traveling.
| Feature | HelloRoam | Airalo | Holafly | Saily | Nomad |
|---|---|---|---|---|---|
| Real-time data balance | Not published | Yes | Yes | Yes | Yes |
| Data usage graph | Not published | Yes | Limited | Yes | No |
| Multiple eSIM management | Add-destination without a new eSIM | Yes (all plans) | Yes | Yes | Yes |
| Top-up from app | Yes | Yes | Yes (unlimited renewal) | Yes | No |
| In-app live chat | Yes (24/7) | Yes | Yes + WhatsApp link | No | No |
| Dark mode | Not published | Yes | No | Yes | No |
| Built-in VPN | Not published | No | No | Yes (NordVPN) | No |
| Referral system | Not published | Yes (Airmoney) | Yes (codes) | Yes | No |
| Push connectivity alerts | Yes (usage alerts) | Yes | No | Yes | No |
| Apple Watch support | Not published | Limited | No | No | No |
Deep dive
Strengths and weaknesses of each eSIM app
Practical findings from each provider's published app listings and release notes.
HelloRoam
Best for: Travelers who want in-app purchase, top-up, add-destination, usage alerts, and 24/7 chat
Strengths
- +App score 5.0 on the published rubric
- +In-app purchase, top-up, and add-destination without a new eSIM
- +Proactive usage alerts
- +24/7 in-app chat
- +iOS and Android app, with QR delivery still available from the web
Weaknesses
- −Newer brand (launched August 2025) with a shorter public track record
Airalo
Best for: First-time eSIM users who want the most-reviewed, polished app experience
Strengths
- +The most feature-complete app of the four remaining apps, and the one with automatic install
- +Airmoney credit system gives 1% of each purchase back as reusable credit
- +Automatic eSIM installation eliminates the QR scanning step on iOS 17.4+
- +Data usage graphs let you track daily and weekly consumption
- +Push notifications alert you at 50%, 80%, and 100% data usage
Weaknesses
- −No built-in VPN; requires separate app for private browsing on public Wi-Fi
- −In-app chat, but no 24/7 channel
- −App size at 45 MB is larger than Holafly and Nomad
Saily
Best for: Privacy-conscious travelers and remote workers who use public Wi-Fi frequently
Strengths
- +Built-in NordVPN integration at no added cost; activates with one tap
- +Largest app at 60 MB but justified by the full VPN stack included
- +Clear GB vs days pricing matrix shows both dimension clearly before purchase
- +Dark mode and clean typography make navigation easy at night
Weaknesses
- −Newer app than Airalo, with a shorter public track record
- −No in-app live chat; all support goes through external channels
- −VPN can conflict with eSIM connection on certain carrier configurations
Holafly
Best for: Travelers who want instant 24/7 support access and unlimited data without data anxiety
Strengths
- +WhatsApp chat shortcut built into the app connects to 24/7 support instantly
- +Unlimited plan model means no data balance tracking anxiety
- +Refund process accessible directly in-app without emailing
- +180-day refund window is visible and prominently surfaced post-purchase
Weaknesses
- −No dark mode; older design language compared to Airalo and Saily
- −Fewer in-app data analytics since unlimited plans make tracking less relevant
- −Bi-monthly update cadence is slower than Airalo and Saily
Nomad
Best for: Experienced eSIM users who want the cheapest data with minimal app overhead
Strengths
- +Lightest app at 25 MB, downloads quickly on slow connections before a trip
- +Simple two-step purchase flow (pick country, pick plan, pay) with no upsells
- +Clear coverage map built into the browse screen
Weaknesses
- −Email-only support, so trip-day problems wait in a queue
- −No in-app live chat, no push alerts, no data usage graphs
- −No top-up; once a plan runs out you must purchase a new plan and switch
- −Quarterly update cadence means bugs can persist longer than on other apps
From the matrix
HelloRoam — Top composite rating
Affiliate link. We may earn a commission at no extra cost to you.
FAQ
eSIM app questions answered
Which eSIM app is best overall?
Which eSIM app is best overall?
HelloRoam App 5.0 ranks first: in-app purchase, top-up, add-destination, usage alerts, and 24/7 chat. Airalo App 4.7 ranks second with automatic eSIM installation, real-time data tracking, push usage alerts, and in-app live chat. Saily leads VPN integration. Holafly also publishes 24/7 chat. For first-time eSIM users, Airalo's automatic install still reduces setup mistakes.
Does Saily include a VPN in the eSIM app?
Does Saily include a VPN in the eSIM app?
Yes. Saily integrates NordVPN directly into the app at no additional cost. After purchasing an eSIM plan, you can enable the VPN with one tap from the home screen. The VPN routes traffic through NordVPN's servers, encrypting browsing on public Wi-Fi in airports, hotels, and cafes. However, the VPN runs over your eSIM data connection, so enabling it does consume data from your eSIM plan. On hotel Wi-Fi, the VPN uses Wi-Fi data not your eSIM allocation.
Can I manage multiple eSIMs in one app?
Can I manage multiple eSIMs in one app?
HelloRoam, Airalo, Holafly, Saily, and Nomad apps all manage purchased plans. HelloRoam publishes add-destination without a new eSIM. Airalo shows all purchased eSIMs in a 'My eSIMs' dashboard with install status, data remaining, and expiry date per plan. Holafly and Saily offer a similar overview. Nomad lists purchased plans but offers fewer details per plan. Note that managing multiple installed eSIM profiles (switching between them) happens in your phone's Settings app, not the eSIM provider app. The provider apps manage purchase and activation, not profile switching.
How accurate is the data usage tracking in these apps?
How accurate is the data usage tracking in these apps?
HelloRoam publishes proactive usage alerts. Airalo, Holafly, Saily, and Nomad pull usage data from the carrier network, not from your device's native data counter. Airalo and Saily update data balance in real time (within 5-15 minutes of usage). Holafly's unlimited plan model makes this less relevant since there is no GB cap to track. Nomad's app updates balance every 30-60 minutes, which is acceptable for most travelers but not useful for monitoring heavy streaming sessions.
Is Airalo automatic eSIM installation really automatic?
Is Airalo automatic eSIM installation really automatic?
Automatic eSIM installation (no QR scanning required) works on iPhone models running iOS 17.4 or later. This includes iPhone XR through the current iPhone 16 series. Android automatic installation support varies by manufacturer: it works on Google Pixel 7+ and Samsung Galaxy S24+. HelloRoam installs from its iOS and Android app, and QR delivery still works from the web. For older devices, Airalo provides a QR code in-app that you scan via Settings > Cellular > Add eSIM. Holafly and Nomad still use QR-only installation; Saily also supports direct install on compatible iOS devices.
What happens in the app when my data runs out?
What happens in the app when my data runs out?
HelloRoam publishes in-app top-up and usage alerts. Airalo sends a push notification at 80% and 100% usage, then shows a top-up button directly in the app. Saily shows a red balance indicator and offers a top-up purchase with one tap. Holafly's unlimited plans do not run out of GB; instead, after fair-use limits are reached the plan throttles hard (still functional for maps and messages). Nomad does not send push alerts; you see a zero balance in the app and must purchase a new plan, but the new plan requires manual switching in Settings.
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eSIM App Comparison
HelloRoam leads the 2026 composite at 4.64/5 in our comparison matrix and leads App at 5.0/5 on iOS and Android. Airalo App is 4.7/5 with in-app install and real-time data tracking. Saily bundles NordVPN into the same app. Holafly keeps the interface simple for unlimited plans. Nomad covers purchase, install, and basic tracking only. We publish no app store ratings, because we do not collect them.
eSIM vs Google Fi
HelloRoam leads the 2026 composite at 4.64/5 in our comparison matrix. HelloRoam covers 186 countries from $3.50/GB and sells unlimited from $5. Travel eSIM providers offer data in 160 to 200-plus countries from $3.00/GB. Google Fi covers 200+ countries at $10/GB after the plan limit. eSIM providers cost less for short trips. Google Fi works better for US residents who want one plan at home and abroad.
Read more →eSIM For Apple Watch
HelloRoam leads the 2026 composite at 4.64/5 in our comparison matrix for phone eSIM, but HelloRoam does not support Apple Watch. Apple Watch Series 3 and later support eSIM for cellular connectivity. HelloRoam, Airalo, Holafly, Saily, and Nomad do not support Apple Watch directly. Apple Watch eSIM requires a carrier plan (AT&T, T-Mobile, Verizon, EE, Vodafone). Number sharing with your iPhone plan costs $5-10/month.
Read more →