Product / Support
How can we help?
For app issues, general feedback, or feature requests, email the developer. Include the app version, system version, device model, and number of configured servers. Never send a password, private key, token, or server address.
Contact
Email: aroluo@icloud.com
Support is provided in English and Simplified Chinese. Please allow up to three business days for a response.
Purchase
Server Sentinel is a $3.99 USD one-time purchase in the United States App Store. There is no subscription. Regional prices may vary and may include applicable taxes.
Frequently asked questions
What if ServerSentinel says no private key is imported?
Open Settings, select the server, and import the key under Authentication. The key is stored in the device Keychain. Password authentication is also available.
Are passphrase-protected private keys supported?
Not currently. The app supports unencrypted OpenSSH Ed25519 and ECDSA keys (P-256/384/521), plus PKCS#8 PEM ECDSA. Convert unsupported keys with ssh-keygen or use password authentication.
Why is SystemSSH unavailable on iPhone?
SystemSSH invokes the macOS system SSH executable. On iPhone and iPad, use DirectSSH, enter an IP address or domain directly, and provide the server's OpenSSH host public key.
Does monitoring continue in the background?
No. Polling runs while the app is in the foreground. Backgrounding stops polling and closes terminal sessions; returning to the foreground starts a fresh collection.
Where are credentials stored?
Passwords, private keys, and Agent read tokens are stored in the local device Keychain. ServerSentinel has no developer backend and does not upload them.
中文支持
如遇到连接、私钥、监控或终端问题，请发送邮件至 aroluo@icloud.com。可附上 App 版本、系统版本、机型与服务器数量，但请勿发送密码、私钥、令牌、主机地址或用户名。通常会在三个工作日内回复。