# SirenApp vs EJBMS PRO

The clearest difference is update cadence: SirenApp at every 5 days against EJBMS PRO's every 11 months. SirenApp also leads on iOS requirement (10.0 vs 12.0). 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.

SirenApp ships an update every 5 days, EJBMS PRO every 11 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SirenApp | EJBMS PRO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 11 months |
| Size | 38 MB | 43 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JAFFER BUSINESS SYSTEMS (PRIVATE) LIMITED](https://appshunter.io/developer/1340833167) | [E&Jtechnology](https://appshunter.io/developer/1274910981) |

## What reviewers say

### SirenApp

[App page](https://appshunter.io/ios/app/sirenapp-emergency-and-rescue/id1479996261)

**Features:** macOS Compatibility

**In-app purchases:** none


### EJBMS PRO

[App page](https://appshunter.io/ios/app/ejbms-pro/id1613901461)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SirenApp free?

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

### Is EJBMS PRO free?

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

### Do SirenApp or EJBMS PRO have ads?

Neither SirenApp nor EJBMS PRO shows ads.

### Which is updated more often, SirenApp or EJBMS PRO?

SirenApp ships an update every 5 days, and EJBMS PRO every 11 months. Most recently, SirenApp was updated on October 26, 2026 and EJBMS PRO on October 25, 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.*