# OperMain Tool vs GSign mongolia

The clearest difference is iOS requirement: OperMain Tool at 12.0 against GSign mongolia's 15.2. On price, update cadence, 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.

OperMain Tool ships an update monthly, GSign mongolia every 3 weeks. The most recent releases landed on June 20, 2026 and July 20, 2026 respectively.

## The numbers

| Metric | OperMain Tool | GSign mongolia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (3 ratings)](https://appshunter.io/ios/app/gsign-mongolia/id1632833615/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 75 MB | 32 MB |
| Requires iOS | **12.0** | 15.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen TBIT Technology Co., Ltd.](https://appshunter.io/developer/901283490) | [The General Authority for State Registration of Mongolia](https://appshunter.io/developer/1632833617) |

## What reviewers say

### OperMain Tool

[App page](https://appshunter.io/ios/app/opermain-tool/id1572634245)

**Features:** macOS Compatibility

**In-app purchases:** none


### GSign mongolia

[App page](https://appshunter.io/ios/app/gsign-mongolia/id1632833615)

This app provides free digital signature certificates for Mongolian citizens. It allows users to sign and verify their signatures electronically for online services, adhering to Mongolian law. Only citizens aged 16 and above can use this application.

**Highlights:** Free digital signature certificates, Electronic signature and verification, Compliance with Mongolian law, User authentication for citizens, Secure online transactions

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

**In-app purchases:** none


## Frequently asked questions

### Is OperMain Tool free?

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

### Is GSign mongolia free?

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

### Do OperMain Tool or GSign mongolia have ads?

Neither OperMain Tool nor GSign mongolia shows ads.

### Which is updated more often, OperMain Tool or GSign mongolia?

OperMain Tool ships an update monthly, and GSign mongolia every 3 weeks. Most recently, OperMain Tool was updated on June 20, 2026 and GSign mongolia on July 20, 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.*