WSS vs OCA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WSS
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ATLAS TECH SOLUTIONS offers its Web and Mobile application "World Safe System" to any company or individual wishing to use one of its geolocation and risk management solutions. WSS is the best platform available on the market because it was designed by security professionals. With a variety of technological solutions, WSS provides individuals and businesses with innovations to address the ever-evolving threat landscape. Our active national partnerships with authorities responsible for public safety also enhance the relevance and effectiveness of the WORLD SAFE SYSTEM platform. THE WORLD SAFE SYSTEM (WSS) PLATFORM OFFERS THE FOLLOWING SERVICES: - Risk management platform - Geolocation with 24/7 remote monitoring option* With a variety of technological solutions, PRAETORIAN TRAJAN offers its clients, both individuals and businesses, geolocation with or without 24/7 monitoring for people, vehicles, and goods. 24/7 Remote Monitoring Option: A service designed for the remote surveillance of electronic security systems. This monitoring applies to any fixed or mobile device aimed at securing property and people. Our Group operates its own Certified APSAD P3 Monitoring Station, which functions according to the strict requirements of this standard. For more information: ATLAS TECH SOLUTIONS 31-33 rue des Clotais, 94360 Bry sur Marne France http://www.atlastechsolutions.net http://www.worldsafesystem.com +33 141 77 96 73 Have questions? https://atlastechsolutions.net/contact-us/
OCA
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OCA est la première application mobile conçue par des négociateurs de crise, ex-membres du RAID, du GIGN, des ERIS et de la DGSI. Douze situations de tension que rencontrent celles et ceux qui gèrent du public, décortiquées dans l'app sous forme de fiches techniques actionnables : observer, comprendre, agir. Trois niveaux de risque pour s'adapter à la volatilité de chaque situation. Avec OCA, l'expertise des négociateurs professionnels tient désormais dans votre poche.
Screenshots
Verdict
The clearest difference is update cadence: OCA at every 3 weeks against WSS's every 27 months. WSS's advantage is device support. On price, in-app purchases and iOS requirement 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.
WSS ships an update every 27 months, OCA every 3 weeks. The most recent releases landed on September 17, 2026 and September 11, 2026 respectively.
| Parameter | WSS | OCA |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 27 months | Every 3 weeks — better |
| Ads | No | — |
| In-app purchases | No | No |
| Devices | iPhone, iPod — better | — |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 17 MB | 42 MB |
| Age rating | 4+ | 12+ |
| Developer | Atlas Tech Solutions | COMBALBERT LAURENT |
In-app purchases
WSS
No in-app purchases
OCA
No in-app purchases









