# Relax eSIM vs КупиСим

The clearest difference is update cadence: КупиСим at daily against Relax eSIM's every 8 days. Relax eSIM's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.4). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Relax eSIM ships an update every 8 days, КупиСим daily. The most recent releases landed on October 30, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Relax eSIM | КупиСим |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/e-sim-travel-internet/id6809137446/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 days | **Daily** |
| Monetization | — | Free |
| Size | 74 MB | 40 MB |
| Requires iOS | **12.0** | 17.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [RELAX ESIM LTD](https://appshunter.io/developer/1823380106) | [Shamkhal Arslankhanov](https://appshunter.io/developer/6775673745) |

## What reviewers say

### Relax eSIM

[App page](https://appshunter.io/ios/app/relax-esim/id6747976213)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### КупиСим

[App page](https://appshunter.io/ios/app/e-sim-travel-internet/id6809137446)

Get mobile data for your travels in over 200 countries. Purchase and install an eSIM plan in minutes before you leave home, with data activating automatically upon arrival. Enjoy transparent pricing and dedicated human support.

**Highlights:** eSIM for 200+ destinations, Install eSIM directly from the app, Pay with Russian bank card or SBP, Full refund if it doesn't work, Transparent data plans, Data usage monitoring, eSIM compatibility check

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is Relax eSIM free?

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

### Is КупиСим free?

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

### Do Relax eSIM or КупиСим have ads?

Neither Relax eSIM nor КупиСим shows ads.

### Which is updated more often, Relax eSIM or КупиСим?

Relax eSIM ships an update every 8 days, and КупиСим daily. Most recently, Relax eSIM was updated on October 30, 2026 and КупиСим on November 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*