Ziva vs OnSiren
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ziva
Discover new people and groups for social outings. Create or join groups with friends to connect with others nearby for events or casual meetups. It offers a natural way to expand your social circle.
- Group creation and management
- Discover nearby groups
- Connect with other groups
- Event planning
- Meet new people together
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Ziva is a new way to meet people, together. Instead of going solo, Ziva lets you create a group with your mates and connect with other groups nearby. Whether it’s for a night out, an event, or just meeting new faces. Ziva makes it feel natural.
OnSiren
This platform provides real-time shared awareness and threat intelligence for UK security officers. It briefs users on local events, allows for quick incident reporting, and offers push-to-talk communication with nearby colleagues. Membership requires a valid SIA license.
- Real-time threat intelligence briefings
- Quick incident reporting with location
- Push-to-talk communication
- Shared awareness network for security officers
- AI-powered local event updates
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OnSiren is a real-time shared awareness and threat intelligence platform for the UK's SIA-licensed security officers. YOUR LOCAL THREAT INTELLIGENCE Alpha One, the AI in the system, briefs you on what's happening around you: what's changed, what to look out for. And it warns you the moment things change. REPORT IN SECONDS See something worth knowing? One press reports it to the officers around you, with the location. Everybody who needs to know, knows at once. A RADIO IN YOUR POCKET Push-to-talk with the officers nearby. Press and hold to speak. Hear what's said around you, live. BUILT FOR LICENSED PROFESSIONALS A network for security officers. You need a valid SIA licence to join. Privacy: onsiren.com/privacy · Terms: onsiren.com/terms What's New: Get briefed on what's happening around you. Report incidents in seconds. Push-to-talk with the officers nearby.
Screenshots
Verdict
The clearest difference is ads: OnSiren at none against Ziva's shown. OnSiren also leads on monetization model (free vs free with in-app purchases). On price, review sentiment, update cadence and in-app purchases 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.
Ziva ships an update every 8 days, OnSiren weekly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | Ziva | OnSiren |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 60.0% of reviews — better | 53.3% of reviews |
| Update frequency | Every 8 days | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.5 — better | 16.4 |
| Further details — not scored | ||
| Size | 83 MB | 128 MB |
| Age rating | 17+ | 17+ |
| Developer | Ziva Social | OnSiren Limited |
Customer experience
Ziva
OnSiren
In-app purchases
Ziva
No in-app purchases
OnSiren
No in-app purchases
