Mars Signal vs eSIM Genius
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mars Signal
Read full descriptionHide full description
Mars Signal helps travelers stay connected before departure with eSIM data plans, physical SIM cards, and SeSIM carrier cards. Browse available destinations and card products, compare package duration and data size, and manage your purchased cards from one mobile app. Mars Signal is designed for users who need reliable connectivity for travel, business trips, long stays, and backup network access. Key features: - Shop travel connectivity products including eSIM, physical SIM, and SeSIM cards. - View package details such as destination, data amount, validity period, and delivery type. - Manage your card assets and check card information in the card wallet. - Access help and account tools from a mobile-first app experience. Mars Signal focuses on simple, practical connectivity for global consumers.
eSIM Genius
Easily purchase and activate prepaid data eSIMs for over 200 destinations worldwide. Avoid roaming charges and stay connected upon arrival with a simple QR code scan. Track data usage and get personalized plan recommendations.
- Prepaid data eSIMs for 200+ destinations
- QR code activation
- Per-day pricing
- Secure card payments
- Data usage tracking
- In-app advisor for plan selection
Read full descriptionHide full description
Skip roaming fees and SIM swaps. eSIM Genius sells prepaid data eSIMs for 187 countries — buy a plan, scan the QR code, and your phone connects the moment you land. • Browse plans for the country you're travelling to, or pick a regional eSIM: Europe, Asia, Middle East, Africa, or Global (one eSIM, 95 countries). • Plans from $1. Validities from 3 to 180 days. Unlimited plans for many destinations. • Pay by card or Apple Pay — your QR arrives by email and in the app within seconds. On iPhone, install with one tap. • Track data usage and validity in the app, and top up the same eSIM in seconds. No new QR code. • Ask Roger, the in-app eSIM advisor, which plan fits your trip. • Earn 5% Genius Cash on every purchase and spend it on your next eSIM or top-up. Refer a friend: they get 10% off, you get 15% back (up to $15). • Global Monthly subscription: one eSIM for 95 countries, fresh data every month, Light or Unlimited tier. Cancel anytime. • App in 34 languages, prices in 19 currencies. Rated Excellent on Trustpilot (4.8/5). • Optimized for iPhone Duo: the app uses the full outer and inner displays and adapts when you fold or rotate it. Good to know: • Full refund if the eSIM doesn't activate. • Works on iPhone XS and later, including iPhone Duo, and most modern eSIM phones. • Validity starts when the eSIM first connects in a country the plan covers — not at purchase. Already in a covered country? Keep the eSIM line off until you travel. • Hotspot allowed. Plans are data-only (no calls or SMS).
Screenshots
Verdict
Mars Signal and eSIM Genius are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.
| Parameter | Mars Signal | eSIM Genius |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (9 ratings) — better |
| Number of ratings | — | 9 — better |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 23 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | ONE TREE HILL TECH LIMITED | Jonathan Dion |
In-app purchases
Mars Signal
No in-app purchases
eSIM Genius
No in-app purchases









