星盾 vs Cerberus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
星盾
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你是否总担心:私聊内容被留存、被截图外传、群聊消息不受控? 普通通讯工具,你的对话权限并不属于你。 星盾‑Cipher,端到端加密私密通讯。把聊天的控制权,交还到你的手里。 所有私聊、群组消息默认端到端加密,消息仅收发双方可解密,传输无明文,不会随意留存你的对话记录。 隐私能力,每一项都为保护你的对话而生 ・屏幕防窥:公共场合降低旁人窥视风险,守护屏幕上的私密对话 ・阅后即焚:自定义消息销毁倒计时,查看后自动清除,不留可追溯痕迹 ・群消息定向可读:群内消息可以指定成员可见,不再一发全员可见 ・已读回执:清晰掌握消息读取状态,沟通进度心中有数 ・应用锁:开启 App 加密保护,防止他人随手打开查看聊天记录 ・平行空间:独立隔离通讯空间,将日常社交与高度私密对话分开存放 我们坚持最小化数据收集,不追踪你的行为,不采集多余个人信息。所有隐私防护开箱即用,无需复杂的专业配置。 在这里,你可以决定:谁能看见这条消息、消息能保留多久、对话是否被隔离保护。 你的悄悄话,只留给你想看见的人。 本应用仅用于合法合规的个人通讯场景。请遵守当地法律法规,严禁将本应用用于任何违法违规用途。 Terms of Use:https://www.shenyoutech.com/cipher/user_agreement.html Privacy Policy:https://www.shenyoutech.com/cipher/privacy_policy.html
Cerberus
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Cerberus is a messenger for conversations that are nobody else's business. Every message, voice note and file is encrypted on your phone and opened only on the phone of the person you are talking to. The server in between carries sealed data and holds no key to any of it — not as a promise not to look, but as a matter of what it has. NO ACCOUNT, NO PHONE NUMBER, NO DIRECTORY There is nothing to sign up for: no email, no SMS, no profile, no password. Nobody can look you up and nobody can add you. A conversation begins when two people are in the same room and one of them scans a code from the other's screen. That is the only way in, and it is the point. WHAT IT PROTECTS • End-to-end encryption with standard cryptography. Keys are generated on the device and stored in the Keychain — they never travel. • The code you show is good once and for a few minutes. The two phones shake hands and move the conversation to a key that was never on any screen, so a code somebody photographed is worth nothing. • A PIN or Face ID on the app itself. • A second PIN for the situation nobody plans for: enter it and the app opens with every conversation hidden, or erases what is on the device, whichever you chose. It shows no error and no sign that another code exists. • Screenshots do not pass silently: the other side is told. • Messages delete themselves on a schedule you set — on both devices and on the server. • A chat list that can show names only, for the moments when your screen is not only yours. AND IT IS STILL A MESSENGER Swipe a message to reply, hold one to react, send photos, videos, files and voice notes, delete anything on your phone or on both phones at once. Everything is where you expect it to be. FREE, AND PRO Two conversations, messages and reactions are free forever — a working messenger, not a trial. Pro adds unlimited conversations, voice notes, photos and files, and deleting on both phones. Take it monthly or yearly with a 3-day free trial, or pay once and keep it for good. Whatever Pro gains later is included at no extra cost. Subscriptions renew automatically until you cancel them in your Apple ID settings. Terms of Use: https://zero-relay.fly.dev/terms WHAT WE CANNOT DO We cannot read your messages, recover them, or reset anything for you. Delete the app and every conversation goes with it: there is no backup, by design, and no way back. To destroy the keys as well, erase from inside the app first — Settings, Security, "Erase everything now". That is the trade this app makes, and it is written here rather than buried in a settings screen.
Screenshots
Verdict
星盾 and Cerberus are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. 星盾 sells 6 in-app purchases, starting at $6.99 per month and Cerberus sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
星盾 ships an update weekly, Cerberus every 5 days. The most recent releases landed on November 3, 2026 and November 2, 2026 respectively.
| Parameter | 星盾 | Cerberus |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 150 MB | 61 MB |
| Age rating | 17+ | 17+ |
| Developer | Guangzhou Shenyou Technology Co., Ltd. | Shahen Grigoryan |
In-app purchases
星盾
- VIP自动续费‑30 天1 Month trial$6.991 Month
- VIP 权益 ‑ 7 天$1.99
- VIP 权益 ‑ 30 天$6.99
- VIP 权益 ‑ 90 天$19.99
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- VIP 权益 ‑ 180 天$29.99
- VIP 权益 ‑ 365 天$59.99
Cerberus
- Cerberus Pro Monthly3 Days trial$2.991 Month
- Cerberus Pro Yearly3 Days trial$14.991 Year
- AirPact: Private Secure Chat$29.99




