Comparison

Heysim vs ChillaxSIM

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Heysim

Features
Read full description

Heysim: Your Global Connectivity Companion Tired of expensive roaming charges and hunting for local Wi-Fi while traveling? Heysim provides instant access to affordable eSIM data plans in over 120 countries, ensuring you’re connected from the moment you land. Why choose Heysim? Instant Activation: Purchase and install your eSIM in seconds via QR code. No physical SIM card required. Global Coverage: From USA to Italy, France to Japan, we’ve got you covered with premium local networks. Flexible Credits: Use our integrated Wallet system to buy credits and redeem them for any data plan whenever you need. No Hidden Fees: Pay only for the data you need. No contracts, no surprises on your bill. Dual SIM Convenience: Keep your original SIM for calls and SMS while using Heysim for high-speed data. How it works: Download the Heysim app. Choose your destination and data plan. Install your eSIM. Enjoy high-speed internet immediately! Perfect for digital nomads, business travelers, and vacationers. Join the future of mobile connectivity with Heysim. Note: Your device must be eSIM compatible and carrier-unlocked.

About

ChillaxSIM

Features
Read full description

Stay connected wherever you travel with ChillaxSIM. Browse and purchase local and regional eSIM data plans for more than 150 destinations. Compare available data allowances, service periods, supported networks, coverage details, and prices before choosing the plan that fits your trip. KEY FEATURES • Local and regional eSIM plans for destinations worldwide • Flexible daily, total-data, and unlimited-data options • Clear coverage, network, speed, and activation information • Secure checkout with supported payment methods • QR code delivery and easy installation instructions • Direct eSIM installation for supported iPhones and plans • View eSIM status, activation dates, and data usage • Access your orders and installation details anytime • Request eligible refunds directly in the app • Customer support by email and WhatsApp HOW IT WORKS 1. Choose your destination. 2. Select an available eSIM plan. 3. Complete your purchase. 4. Install your eSIM using the provided QR code or supported direct-install option. 5. Follow the activation instructions shown for your selected plan. An eSIM-compatible, carrier-unlocked device is required. Coverage, supported networks, speeds, activation methods, and available features vary by destination, network operator, device, and selected plan.

Screenshots

Heysim3 screens
ChillaxSIM4 screens

Verdict

The call

The clearest difference is in-app purchases: ChillaxSIM at none against Heysim's 3. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Heysim sells 3 one-off in-app purchases. ChillaxSIM asks for nothing beyond the download.

Scorecard1 real difference · 4 level
Heysim versus ChillaxSIM: the parameters behind the verdict, then further details
ParameterHeysimChillaxSIM
PriceFreeFree
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better16.4
Further details — not scored
Size20 MB63 MB
Age rating4+4+
DeveloperRiccardo BuonoFire Flow Limited

In-app purchases

3 purchases

Heysim

One-time3
  • 5$ Credit$4.99
  • 10$ Credit$9.99
  • 20$ Credit$19.99
None

ChillaxSIM

No in-app purchases

Questions

Is Heysim free?
Heysim is free to download, with in-app purchases available.
Is ChillaxSIM free?
ChillaxSIM is free to download, with no in-app purchases.
Do Heysim or ChillaxSIM have ads?
Neither Heysim nor ChillaxSIM shows ads.

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