IMMUNE Messenger vs EXTRA SAFE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IMMUNE Messenger
This secure messaging app offers end-to-end encrypted chats and calls, with a built-in crypto wallet for easy Bitcoin transfers directly within conversations. It prioritizes user privacy by not storing data on servers, ensuring all communications remain on your device.
- End-to-end encrypted messaging
- P2P voice and video calls
- Built-in Bitcoin wallet
- Direct Bitcoin transfers
- Ad-free experience
- File and media sharing
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IMMUNE is an innovative, new messenger with a built-in crypto wallet, a high degree of security and protection for your data. The built-in crypto wallet allows you to easily and quickly transfer to your friends and business partners - sending and receiving bitcoins directly from the chat. IMMUNE does not store personal correspondence and contacts on its servers, all data remain on your device. All correspondence is protected with end-to-end encryption using strong, proven algorithms (ECIES, AES256). IMMUNE contains all the usual messenger functions: Sending text and voice messages Voice and video calls Sending and receiving files of any type Sending and receiving images and videos Sending and receiving contacts from the address book The IMMUNE crypto wallet allows you to: Store bitcoins on the mobile device Transfer bitcoins to other people by phone number or a wallet address Restore the wallet using a secret phrase when reinstalling the app or changing the phone number IMMUNE uses the technology that allows you to connect to your companion directly bypassing intermediate servers, which gives high quality calls without interference and distortion. IMMUNE is an ad-free application. Just you and your partners in conversation, no annoying banners or pop-up windows.
EXTRA SAFE
Communicate securely with end-to-end encrypted messaging and self-destructing messages. Enjoy anonymous voice and video calls with P2P connections and on-device encryption keys. Prioritizes privacy with identity-free setup and no metadata collection.
- End-to-end encrypted messaging
- Self-destructing messages and files
- Anonymous P2P voice and video calls
- Encrypted file transfer
- Identity-free setup
- Private P2P video meetings
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EXTRA SAFE is a self-custodial messenger with a built-in stablecoin-first wallet — the chat layer for transferring digital assets. Send USD₮, USDC, and other tokens to a contact the same way you'd share a photo, and pay gas in the same stablecoin you send. Pick a name, get your EXTRA SAFE number, and you're set up in seconds. WHAT YOU GET 1. Stablecoins in chat Send USD₮, USDC, and other tokens to a contact in a chat, straight from the attachment menu, wallet-to-wallet. The transfer confirms in seconds. A name or an EXTRA SAFE number is all you need — the app handles addressing and routing underneath. 2. Gas settles in the stablecoin you send You don't have to buy a native coin to send tokenized dollars. The fee comes out of the same stablecoin you're already sending. It's part of UGTP — an intent-based platform running underneath every in-app transaction: you set the outcome, and the platform builds the transaction that delivers it. 3. Self-custodial, stablecoin-first wallet Your keys are generated on your device and stay there. Send across six leading EVM networks — Avalanche (default), Ethereum, Polygon, BNB Chain, Base, and Arbitrum — and the recipient gets the token you selected. The on-chain layer stays invisible. You can send EXTRA SAFE tokens to contacts in chat, or to any external self-custodial wallets or centralized exchanges, from the Wallet tab. 4. Private Tokens Keep the amount you're sending hidden — the transfer itself stays visible. Convert any asset you hold into a Private Token, send it right in the app, and reveal the balance only when you choose. Built on eERC, Avalanche's encrypted token standard, live on Avalanche. 5. Zero-knowledge encrypted chats Every message, file, image, and voice note is end-to-end encrypted: keys live on your device, and content is decrypted only on your contact's device. The architecture makes it structurally impossible for us to read your messages. Every chat runs on your timer: once your contact views the content, it clears after the time you set — from one minute to one month. 6. Gift links Bring your closest people into stablecoin payments with a funded link: stablecoins already inside, a wallet created the moment your contact opens it. Usable from day one. 7. Device-to-device calls Calls connect directly between devices, peer to peer. In-call chat is encrypted and clears when the call ends. Group calls with up to 5 people are free and unlimited. 8. One identity One name, one EXTRA SAFE number — for messages, calls, and assets. Pick a name and start: your identity is created in the app itself, independent of email, phone number, or SIM. One 12-word recovery phrase restores your account and wallet on any device. Your chats, contacts, and assets stay fully yours.
Screenshots
Verdict
The clearest difference is rating: IMMUNE Messenger at 5.0 against EXTRA SAFE's 4.4. EXTRA SAFE's advantage is ratings volume (102 vs 1) and update cadence (fortnightly vs every 6 weeks). On price, ads, in-app purchases and monetization model 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.
IMMUNE Messenger holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: EXTRA SAFE has 102 ratings behind it against 1, so its average is the more settled of the two.
IMMUNE Messenger ships an update every 6 weeks, EXTRA SAFE fortnightly. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.
| Parameter | IMMUNE Messenger | EXTRA SAFE |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.4 (102 ratings) |
| Positive reviews | — | 81.8% of reviews |
| Number of ratings | 1 | 102 — better |
| Update frequency | Every 6 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 | 15.0 — better |
| Further details — not scored | ||
| Size | 88 MB | 94 MB |
| Age rating | 17+ | 4+ |
| Developer | IMM Money Messenger Limited | Alex Keselman |
Customer experience
IMMUNE Messenger
EXTRA SAFE
In-app purchases
IMMUNE Messenger
No in-app purchases
EXTRA SAFE
No in-app purchases









