Comparison

Smoke vs VoidSend

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Smoke

Features
Read full description

Your messages deserve better. Smoke is a privacy-first messaging app where your conversations stay private—even from us. End-to-End Encrypted All text messages are encrypted on your device before they're sent. Only you and your recipient can read them. We can't decrypt them. Nobody can. Messages That Disappear Every message automatically vanishes after 48 hours. No endless chat history. No digital footprint. Just conversations that fade away like smoke. No Email. No Phone Number. No Tracking. Create your account with just a username. We don't collect your email, phone number, or personal information. Your identity is yours alone. - Send disappearing text messages - Share photos and videos that expire - Get notified when someone takes a screenshot - See when friends are viewing your messages Friends Only Add friends by username, QR code, or friend request. No spam. No strangers. Just people you choose. Built for Privacy - Screenshot detection alerts - Keys stored securely in your device's keychain - Messages blur after viewing - No ads. No data mining. No surveillance. Ephemeral by Design Everything disappears. Messages, photos, videos—all gone within 48 hours. Have real conversations without the permanent record. Why Smoke? Because your private conversations shouldn't be stored forever in some company's database. Because you shouldn't need to hand over your phone number to send a message. Because privacy should be the default, not a premium feature. Smoke uses military-grade encryption (Curve25519-XSalsa20-Poly1305) to protect your messages. Your private keys never leave your device. We built Smoke because we believe privacy is a right, not a luxury. Perfect for: - Private conversations with friends - Sharing moments that don't need to last forever - Anyone who values digital privacy - People tired of being tracked and monitored Download Smoke and take back your privacy. --- Privacy Policy: http://chiseltheory.com/smokeprivacy.html Support: support@chiseltheory.com © 2025 Chisel Theory LLC. Your messages, your privacy, your choice.

About

VoidSend

Features
Read full description

VoidSend is a zero-knowledge encrypted messenger built for a post-quantum world. Every message, file, and call is encrypted on your device before it ever leaves — our servers act as a blind relay, mathematically unable to decrypt your data. ZERO-KNOWLEDGE ARCHITECTURE Unlike other messengers that promise privacy, VoidSend's Blind Relay design means the server only ever sees encrypted blobs. No plaintext. No metadata leaks. Your encryption keys never leave your device. POST-QUANTUM ENCRYPTION VoidSend uses hybrid encryption combining X25519 with ML-KEM-768 (Kyber), protecting your conversations against both today's threats and tomorrow's quantum computers. Messages are sealed with AES-256-GCM, and identities are verified with ML-DSA-65 post-quantum signatures. MESSAGING • End-to-end encrypted direct and group messages • Disappearing messages (5 seconds to 7 days) • Encrypted file sharing with automatic 24-hour server-side deletion • Emoji reactions, replies, and typing indicators • Message search across your conversation history VOICE & VIDEO CALLS • Peer-to-peer WebRTC audio and video calls • Optional post-quantum encrypted media streams • Call history WEB3 PAYMENTS (Only available on www.voidsend.xyz) • Built-in multi-chain wallet: Ethereum, Base, and Solana • Send and receive ETH, USDC, USDT, SOL, and SPL tokens • Wallet derived from your encryption seed — one identity, one key PASSWORDLESS AUTHENTICATION • Sign in with your crypto wallet (EIP-712 signature) • Or use Face ID / Touch ID with Passkeys • No email. No phone number. No passwords. Just you. STORIES & PROFILES • Share ephemeral photos and videos with your contacts • Custom avatars and usernames • Online status visible only to mutual contacts PRIVACY BY DESIGN • No data collection beyond your username and encrypted data • Block contacts and control who can message you • Cross-platform: your encrypted identity syncs seamlessly across all your devices VoidSend doesn't ask you to trust us — it's built so you don't have to.

Screenshots

Smoke3 screens
VoidSend4 screens

Verdict

The call

The clearest difference is iOS requirement: VoidSend at 15.1 against Smoke's 18.5. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 5 level
Smoke versus VoidSend: the parameters behind the verdict, then further details
ParameterSmokeVoidSend
PriceFreeFree
Update frequency—Every 4 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.515.1 — better
Further details — not scored
Size18 MB50 MB
Age rating4+12+
DeveloperChisel Theory LLCAnalog Mutations ltd

In-app purchases

None

Smoke

No in-app purchases

None

VoidSend

No in-app purchases

Questions

Is Smoke free?
Smoke is free to download, with no in-app purchases.
Is VoidSend free?
VoidSend is free to download, with no in-app purchases.
Do Smoke or VoidSend have ads?
Neither Smoke nor VoidSend shows ads.

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