Off vs Cerqo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Off
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Off-Grid is a secure, serverless messenger built for people who take privacy seriously. Messages travel peer-to-peer over Bluetooth mesh — no servers, no accounts, no logs. When you send a message, it hops through nearby devices to reach its destination. Nothing touches the internet. SECURE BY · End-to-end encrypted with AES-256-GCM · Zero metadata — no sender, no timestamp, no read receipts stored anywhere · Messages exist only in RAM — close the app, they're gone · No account registration, no phone number, no email MESH NETWORKING · Works without Wi-Fi or cellular · Range extends through every device running DataSec nearby · Location-based channels let you communicate with people in the same area · Direct encrypted messages to specific peers ENCRYPTED VOICE CALLS (Pro) · Real-time P2P encrypted voice calls · Voice effects — Deep, High, Robot · No call servers log your conversations OPERATIONAL SECURITY · PIN lock with biometric authentication · Lockout after failed attempts — survives app kill · Auto identity rotation — randomizes your alias every 4 seconds · Panic wipe DataSec does not have access to your messages. We cannot read them, hand them over, or be compelled to produce them. There is nothing to produce. This software is subject to U.S. export control laws (EAR). ECCN 5D002, CCATS Z1894258. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Cerqo
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Cerqo is the nearby offline chat app for moments when signal disappears. Send messages, photos, voice notes, and files to people around you using Wi-Fi and Bluetooth. No internet connection, no phone number, and no servers in the middle. Cerqo is built for real-world situations where traditional messaging becomes unreliable: Flights and Airplane Mode Travel without roaming Trains and subways Festivals and crowded events Campuses, conferences, and local meetups Any place with weak or overloaded mobile service WHY CERQO Chat with nearby people without internet Share photos, voice notes, and files Start private conversations in seconds Create group chats for local coordination Keep messages on participating devices Use encrypted peer-to-peer connections Add your name and optional seat or location note so people can recognize you nearby HOW IT WORKS Open Cerqo on both iPhones Keep Wi-Fi and Bluetooth on Open Nearby Tap Connect Start chatting NO ACCOUNT. NO CLOUD. NO EXTRA SETUP. Cerqo is designed to be simple when you need it most. You do not need to create an account, add a phone number, or rely on mobile coverage just to start a conversation with someone nearby. Whether you are on a flight, underground, traveling abroad, or in a packed crowd, Cerqo helps you stay connected when the internet does not.
Screenshots
Verdict
The clearest difference is in-app purchases: Cerqo at none against Off's 2. Cerqo also leads on iOS requirement (17.0 vs 26.2). On price, ads 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. Off sells 2 in-app purchases, starting at $4.99 per 7 days. Cerqo asks for nothing beyond the download.
| Parameter | Off | Cerqo |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 3 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone |
| Requires iOS | 26.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Adham Qurbonov | MAKSIM TRONIN |
In-app purchases
Off
- DataSec Pro Monthly$4.997 Days
- DataSec Pro Yearly3 Days trial$29.991 Year
Cerqo
No in-app purchases









