SirenApp vs EJBMS PRO
Price, ratings, monetisation and update history for both apps, side by side â with what reviewers say about each.
SirenApp
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Siren - One Platform for All Emergencies! ت٠ا٠ÛÙÚ¯Ø§Ù Û ØµÙØ±ØªØØ§Ù Ú©Û ÙØŠÛ اÛÚ© اٟÙÛ Ú©ÛØŽÙ Siren, a mobile App designed and developed by Jaffer Business Systems Private Limited (JBS). SirenApp help people in emergencies by connecting them to relevant authorities like Ambulance, Fire, Police, Sui Gas, electric and few others. Not only will Siren connect you to the emergency agencies on a click of a button, it will also send the accurate location of emergency spot to them ensuring that help arrives at the right spot without any delay. With Siren, you can also preset three of your family/friends numbers who will be instantly notified in case you are caught up in any emergency.
EJBMS PRO
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The Apps main feature is to monitor the details of the E&J Lithium batteries. It can monitor multiple batteries at the same time, showing the main data details after series or parallel, showing details of each battery. Re-nameable each battery pack and auto-connect. The Phone via Bluetooth connectivity will monitor the following information from the battery. Battery Capacity Battery Voltage Battery Current (Amps) Battery State of Charge (SOC) Battery Status Individual Cell Voltage Battery Temperature Battery Cycles Please Note: Only one mobile device can connect to the battery at any one time. If you wish to connect a second device to the battery, you must close the program on the first device. This app is only applicable to the E&J Lithium batteries and will not work with any other brand/type of Bluetooth battery monitoring system, nor will any other branded app work with the E&J lithium battery.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | SirenApp | EJBMS PRO |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days â better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod â better | iPhone, iPod |
| Requires iOS | 10.0 â better | 12.0 |
| Further details â not scored | ||
| Size | 38 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | JAFFER BUSINESS SYSTEMS (PRIVATE) LIMITED | E&Jtechnology |
In-app purchases
SirenApp
No in-app purchases
EJBMS PRO
No in-app purchases









