# ESIA 4S vs ThromPay

The clearest difference is update cadence: ThromPay at every 3 days against ESIA 4S's every 24 months. ThromPay also leads on iOS requirement (15.1 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

ESIA 4S ships an update every 24 months, ThromPay every 3 days. The most recent releases landed on September 19, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | ESIA 4S | ThromPay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 3 days** |
| Size | 57 MB | 22 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BEX SOLUTIONS LIMITED](https://appshunter.io/developer/1357555528) | [G2C Office, Royal Government of Bhutan](https://appshunter.io/developer/1148844615) |

## What reviewers say

### ESIA 4S

[App page](https://appshunter.io/ios/app/esia-4s/id6670701701)

**Features:** macOS Compatibility

**In-app purchases:** none


### ThromPay

[App page](https://appshunter.io/ios/app/thrompay/id6756599367)

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

**In-app purchases:** none


## Frequently asked questions

### Is ESIA 4S free?

ESIA 4S is free to download, with no in-app purchases.

### Is ThromPay free?

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

### Do ESIA 4S or ThromPay have ads?

Neither ESIA 4S nor ThromPay shows ads.

### Which is updated more often, ESIA 4S or ThromPay?

ESIA 4S ships an update every 24 months, and ThromPay every 3 days. Most recently, ESIA 4S was updated on September 19, 2026 and ThromPay on September 17, 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.*