Comparison

KoeSIM vs eSIMzero

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

Head to head

KoeSIM

No. 1 Korea eSIM marketplace

★ 5.09 ratingsView app →

About

KoeSIM

Read full description

You can buy all kinds of prepaid or subscription eSIMs working in South Korea. Especially for your trip for South Korea, prepare for Korea local eSIM services here with KoeSIM.

About

eSIMzero

This app provides affordable and user-friendly travel eSIM bundles for global connectivity in over 150 countries. It offers a modern, cost-effective alternative to physical SIM cards, ensuring seamless connection for your adventures.

Highlights

Global eSIM bundles
Over 150 countries supported
Affordable travel data
User-friendly interface
Alternative to physical SIMs
Seamless connectivity

Features

Read full description

Explore the world with eSIMzero, your go-to travel companion for global connectivity. Offering affordable and user-friendly travel bundles for eSIMs across more than 150 countries, eSIMzero ensures you stay connected wherever your adventures take you. Ditch the hassle of physical SIM cards and switch to a modern, cost-effective solution. Download eSIMzero and embrace seamless connection on your travels.

Screenshots

KoeSIM4 screens

eSIMzero4 screens

Verdict

The call

The clearest difference is update cadence: eSIMzero at every 2 weeks against KoeSIM's every 14 months. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

KoeSIM ships an update every 14 months, eSIMzero every 2 weeks. The most recent releases landed on September 15, 2026 and October 5, 2026 respectively.

Scorecard1 real difference · 9 level

KoeSIM versus eSIMzero: the parameters behind the verdict, then further details
Parameter	KoeSIM	eSIMzero
Price	Free	Free
Rating	—	5.0 (9 ratings) — better
Positive reviews	—	100.0% of reviews
Number of ratings	—	9 — better
Update frequency	Every 14 months	Every 2 weeks — better
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13.0	12.0 — better
Further details — not scored
Size	10 MB	62 MB
Age rating	4+	4+
Developer	Prepia	Across The World Mongolia Limited

In-app purchases

None

KoeSIM

No in-app purchases

None

eSIMzero

No in-app purchases

Questions

Is KoeSIM free?

KoeSIM is free to download, with no in-app purchases.

Is eSIMzero free?

eSIMzero is free to download, with no in-app purchases.

Do KoeSIM or eSIMzero have ads?

Neither KoeSIM nor eSIMzero shows ads.

Which is updated more often, KoeSIM or eSIMzero?

KoeSIM ships an update every 14 months, and eSIMzero every 2 weeks. Most recently, KoeSIM was updated on September 15, 2026 and eSIMzero on October 5, 2026.