CmEcho vs BlindPost
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CmEcho
This app offers secure video conferencing and instant messaging with a focus on privacy. It supports one-on-one and group calls, file sharing, and encrypted communication for personal and professional use.
- One-on-one HD video calls
- Group video conferencing
- Private and group chats
- Text, image, and voice messaging
- File sharing
- Encrypted communication
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CmEcho 是一款专注隐私保护的视频会议和即时通讯应用，让您与家人、朋友和同事保持安全高效的沟通。 【视频通话】 • 一对一高清视频通话 • 多人视频会议 • 前后摄像头自由切换 • 清晰流畅的音视频体验 【即时消息】 • 私聊和群组聊天 • 发送文字、图片、语音消息 • 文件分享，支持多种格式 • 消息已读状态 【语音通话】 • 高质量语音通话 • 来电推送通知 • 后台通话支持 【联系人】 • 扫码添加好友 • 好友请求管理 【隐私保护】 • 加密通信传输 • 不收集不必要的个人信息 适用于家庭视频聚会、远程办公会议、朋友日常聊天、小型团队协作等场景。
BlindPost
A secure messaging app offering end-to-end encrypted chats and calls. Share media, use disappearing messages, and enjoy a private, ad-free experience with no tracking. Your privacy is protected with robust encryption and device-only key storage.
- End-to-end encrypted chats and calls
- Private and group messaging
- Voice and video calls
- Disappearing messages option
- PIN lock and biometric authentication
- No ads or third-party analytics
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BlindPost is a modern messaging app with end-to-end encryption built in. CHAT AND CALL • Private and group chats • Voice and video calls (WebRTC) • Share photos, videos, files, and voice messages • Message reactions, replies, and quotes • Link previews with rich metadata • Polls in group chats • Contact card sharing • Forward messages (text, image, video, file, contact) END-TO-END ENCRYPTED • Every message, call, and file is encrypted on your device before sending • Uses industry-standard cryptography (XChaCha20-Poly1305 and Ed25519) • Your private keys are stored only on your device • Your Ed25519 public key is your user ID — no phone number or email required to sign up • Zero-knowledge server architecture — servers route encrypted data they cannot read SECURITY • PIN lock and biometric authentication (Face ID / fingerprint) • Encrypted device backup via 12-word recovery phrase • Disappearing messages option for conversations you want to keep ephemeral • Open architecture with distributed server nodes for reliability NO TRACKING • No ads • No third-party analytics SDKs AVAILABLE IN 6 LANGUAGES English, 中文, 繁體中文, 日本語, 한국어, Español BlindPost is built for everyday private conversations with the people who matter to you.
Screenshots
Verdict
The clearest difference is iOS requirement: CmEcho at 13.0 against BlindPost's 15.5. On price, rating, ratings volume and update cadence 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.
On the App Store both sit at effectively the same score — 5.0 for CmEcho against 5.0 for BlindPost. Both are backed by a comparable volume of ratings — 2 and 5 respectively.
CmEcho ships an update every 3 days, BlindPost every 4 days. The most recent releases landed on September 15, 2026 and September 9, 2026 respectively.
| Parameter | CmEcho | BlindPost |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (5 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 5 — better |
| Update frequency | Every 3 days — better | Every 4 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 64 MB | 184 MB |
| Age rating | 4+ | 17+ |
| Developer | Lechang Luke Cheng | MyProxy Technologies LLC |
Customer experience
CmEcho
BlindPost
In-app purchases
CmEcho
No in-app purchases
BlindPost
No in-app purchases
