# Extension HRMS vs 3Sigma mobile CRM

The clearest difference is update cadence: 3Sigma mobile CRM at every 8 days against Extension HRMS's every 2 months. Extension HRMS's advantage is iOS requirement (11.0 vs 15.1). 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.

Extension HRMS ships an update every 2 months, 3Sigma mobile CRM every 8 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Extension HRMS | 3Sigma mobile CRM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Size | 39 MB | 76 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [EXTENSION TECHNOLOGIES PRIVATE LIMITED](https://appshunter.io/developer/1603957534) | [Vivek Rana](https://appshunter.io/developer/1704125607) |

## What reviewers say

### Extension HRMS

[App page](https://appshunter.io/ios/app/extension-hrms/id1670625001)

**Features:** macOS Compatibility

**In-app purchases:** none


### 3Sigma mobile CRM

[App page](https://appshunter.io/ios/app/3sigma-mobile-crm/id6463200219)

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

**In-app purchases:** none


## Frequently asked questions

### Is Extension HRMS free?

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

### Is 3Sigma mobile CRM free?

3Sigma mobile CRM is free to download, with no in-app purchases.

### Do Extension HRMS or 3Sigma mobile CRM have ads?

Neither Extension HRMS nor 3Sigma mobile CRM shows ads.

### Which is updated more often, Extension HRMS or 3Sigma mobile CRM?

Extension HRMS ships an update every 2 months, and 3Sigma mobile CRM every 8 days. Most recently, Extension HRMS was updated on October 27, 2026 and 3Sigma mobile CRM on October 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.*