# ESIS Construction vs Mongol Service DE

The clearest difference is in-app purchases: ESIS Construction at none against Mongol Service DE's 3. Mongol Service DE's advantage is update cadence (weekly vs every 50 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Mongol Service DE sells 3 in-app purchases, starting at $7.99 per month. ESIS Construction asks for nothing beyond the download.

ESIS Construction ships an update every 50 months, Mongol Service DE weekly. The most recent releases landed on October 10, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | ESIS Construction | Mongol Service DE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 50 months | **Weekly** |
| Size | 3 MB | 69 MB |
| Requires iOS | **14.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CHUBB INA HOLDINGS INC](https://appshunter.io/developer/672736608) | [Munkhmandal Jargalsaikhan](https://appshunter.io/developer/1598918707) |

## What reviewers say

### ESIS Construction

[App page](https://appshunter.io/ios/app/esis-construction/id1074337449)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mongol Service DE

[App page](https://appshunter.io/ios/app/mongol-service-de/id6773288615)

**Features:** macOS Compatibility, Family Sharing, Apple Wallet, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $7.99 | per month |
| Contact Unlock | $1.99 | one-time |
| Featured Advertisement | $2.99 | one-time |


## Frequently asked questions

### Is ESIS Construction free?

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

### Is Mongol Service DE free?

Mongol Service DE is free to download, with in-app purchases available.

### Do ESIS Construction or Mongol Service DE have ads?

Neither ESIS Construction nor Mongol Service DE shows ads.

### Which is updated more often, ESIS Construction or Mongol Service DE?

ESIS Construction ships an update every 50 months, and Mongol Service DE weekly. Most recently, ESIS Construction was updated on October 10, 2026 and Mongol Service DE on September 24, 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.*