# SIREN Network vs KBP

The clearest difference is update cadence: KBP at every 2 months against SIREN Network's every 4 months. SIREN Network's advantage is iOS requirement (13.0 vs 15.0). 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.

SIREN Network ships an update every 4 months, KBP every 2 months. The most recent releases landed on September 15, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | SIREN Network | KBP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Size | 35 MB | 141 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AFRICAN MARINE MAMMAL CONSERVATION](https://appshunter.io/developer/1609514754) | [Sharry Europe s.r.o.](https://appshunter.io/developer/1231851310) |

## What reviewers say

### SIREN Network

[App page](https://appshunter.io/ios/app/siren-network/id1609514752)

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

**In-app purchases:** none


### KBP

[App page](https://appshunter.io/ios/app/kbp/id1640024569)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is SIREN Network free?

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

### Is KBP free?

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

### Do SIREN Network or KBP have ads?

Neither SIREN Network nor KBP shows ads.

### Which is updated more often, SIREN Network or KBP?

SIREN Network ships an update every 4 months, and KBP every 2 months. Most recently, SIREN Network was updated on September 15, 2026 and KBP on September 16, 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.*