# DSEI Gateway vs CentraOS

The clearest difference is update cadence: DSEI Gateway at every 3 weeks against CentraOS's every 6 months. 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.

DSEI Gateway ships an update every 3 weeks, CentraOS every 6 months. Both last shipped on September 6, 2026.

## The numbers

| Metric | DSEI Gateway | CentraOS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 15.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 46 MB | 118 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [CLARION EVENTS LIMITED](https://appshunter.io/developer/1380101120) | [Elbit Systems](https://appshunter.io/developer/1469793782) |

## What reviewers say

### DSEI Gateway

[App page](https://appshunter.io/ios/app/dsei-gateway/id6747173379)

Connect with key decision-makers and innovators in the global defence and security sector. Access curated industry news, market intelligence, and business opportunities. Facilitates networking through smart tools and exclusive member events.

**Highlights:** Personalized industry news feed, Global tender and procurement alerts, Smart matchmaking algorithm, Direct messaging and group chat, Member-only event bookings and check-ins, Global company directory with filtering

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and helpful for show
- 🚀 Good App to buy tickets

**What reviewers complain about**

- 🐛 Unusable
- 🐛 Crashes all the time
- 🐛 Doesn't Work
- 🐛 Slow and Can't upload a profile pic
- 🐛 Unexpected error for login

**Reported bugs**

- Email verification doesn't work
- Registration doesn't work
- App itself doesn't work
- Unable to set up the app
- Unexpected error on login

**Requested features**

- Easier to navigate floor plan


### CentraOS

[App page](https://appshunter.io/ios/app/centraos-gcaas/id6752290315)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DSEI Gateway free?

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

### Is CentraOS free?

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

### Do DSEI Gateway or CentraOS have ads?

Neither DSEI Gateway nor CentraOS shows ads.

### Which is updated more often, DSEI Gateway or CentraOS?

DSEI Gateway ships an update every 3 weeks, and CentraOS every 6 months. Most recently, DSEI Gateway was updated on September 6, 2026 and CentraOS on September 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*