Onoff eSIM – Review & Full Test 2026

🌍

Countries covered

30 countries

💶

Starting at

4,50 €

📶

Network

5G

📊

Data

Starting at 1 GB

❌

Calls/SMS

No

📱

App

iOS & Android

Coverage in 25+ popular countries for short or medium trips.

Ultra-fast activation via app, no external QR code.

Flexible prepaid plans with easy top-up while traveling.

Compatible with most recent eSIM smartphones.

Official ratings

Destinations & coverage

Onoff covers 25+ popular destinations, with data plans suited for short trips across Europe, Asia, or Americas.

By region

Key points

✅

Advantages

  • ✓ eSIM installation in minutes directly within the app.
  • ✓ Competitive country-based pricing with no contracts or surprises.
  • ✓ Multiple eSIM management and authorized hotspot.
  • ✓ French support via email and in-app, responsive.
⚠️

Disadvantages

  • ✗ Coverage limited to 25+ countries vs global competitors.
  • ✗ Low App Store ratings due to occasional signal issues.
  • ✗ Data-only, no calls/SMS included.
  • ✗ Recent app with bugs reported by some users.

Customer reviews

Google Play

4/5

“

Perfect for Japan and Thailand, stable data and low prices, immediate activation on arrival.

November 1, 2025

App Store

2/5

“

Unstable eSIM, often loses signal, data not fully usable despite purchase.

December 1, 2025

Google Play

4/5

“

Ideal for multi-country Europe, simple top-up and hotspot works well.

October 1, 2025

Description

Onoff Travel, the eSIM extension of the Onoff Telecom group, offers prepaid data plans in over 25 global destinations, perfect for vacations, business, or explorations. Covering Europe, Asia, Americas, and Africa with 4G/5G networks, plans range from 1GB to unlimited for 1 to 30 days, starting at €4.5. Quick installation via iOS/Android app, multi-eSIM management, and authorized hotspot make it a convenient choice for digital nomads and occasional travelers avoiding local SIMs.

How it works

Install from App Store (iOS 16+) or Google Play (Android eSIM compatible).

Select country/region and appropriate data/duration plan.

Pay via card or PayPal, receive instant confirmation.

Follow app instructions to add eSIM profile to phone settings.

Disable airplane mode, select Onoff eSIM for mobile data.

Test internet and monitor usage via app.

⚠️ If it fails

✅ Restart phone, check data roaming enabled, toggle airplane mode on/off. Contact [email protected].

✅ Ensure stable WiFi connection, check device eSIM compatibility, retry via app.

✅ Disable auto updates and HD streaming in app, monitor real-time usage.

Alternatives

FAQ

Opt for a 5-10GB/7-15 day plan covering multiple European countries, ideal for GPS and social networks without excess.

Yes, tethering is allowed on most plans, check country-specific conditions in the app.

iOS 16+ or recent Android eSIM devices (Google Pixel, Samsung Galaxy S20+). Check app/website list.

Yes, easy top-up via app anytime without a new eSIM.

No, data-only. Keep physical SIM for voice/SMS.

Contact support within 24h for activation issues, subject to terms of use.

Company info

Legal name: Onoff Telecom

Founders: Taïg Khris

Address: 26 Boulevard de Bonne Nouvelle, 75010 Paris, France

Email: [email protected]

Website: https://onoff.app

Support

24/7

chat, email, in-app

Accepted payments

Visa, Mastercard, PayPal

Platforms

iOS app, Android app

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