ServerCat vs Rrring
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ServerCat
Monitor your Linux servers and Docker containers directly from your mobile device. View detailed resource usage, network traffic, and container stats. Offers an SSH terminal for remote management and automation capabilities.
- Server status monitoring
- CPU, GPU, Memory usage
- Network traffic and speed
- Docker container stats
- SSH Shell Terminal
- Container management
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ServerCat is a Linux monitor and Docker Management & SSH Terminal app. ServerCat makes it easy to monitor your server status on your mobile. It shows detail running status of your linux servers and docker containers. It only needs an SSH account without any other dependencies. It will not install any tools to your system. Free Features Monitor detail status of your server including: ・CPU usage per-core ・GPU usage and running process ・Memory usage ・Network traffic/speed and TCP stats ・Docker containers and stats ・Disk blocks and IO per second Premium Features ・ SSH Shell Terminal ・ Sync data across all your iOS devices ・ Create and Manage containers ・Background SSH Security: All SSH credentials are AES-encrypted and saved locally. The Cloud Sync uses iCloud to sync AES-encrypted data securely and nobody can inspect your data in the cloud. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy https://servercat.app/privacy
Rrring
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rrring turns any webhook into a push notification on your phone. Create a free channel at rrring.cloud, copy the private webhook URL, and POST a title and body to it from anywhere - a cron job, a CI pipeline, a home server, a monitoring tool, a script, an IFTTT/Zapier flow, an LLM agent. Your phone rings the instant the request lands. HOW IT WORKS Sign up at rrring.cloud (free) and create a channel. Open the channel and tap "Pair with phone" to show a QR code. Open rrring on your phone, scan the QR, and you're paired. POST to your private webhook URL. Your phone rings. WHAT IT'S FOR • Deploy and CI/CD alerts ("build green", "prod deploy finished") • Server and uptime monitoring • Home-lab and self-hosted apps (Home Assistant, Proxmox, Synology, Unraid) • Long-running jobs ("training run finished", "backup complete") • LLM agents and automations that need to ping a human • Zapier, Make, n8n, IFTTT - anything that can hit a URL • Personal reminders from your own scripts and cron jobs • Anything you'd otherwise email yourself FEATURES • Instant delivery - real-time WebSocket plus APNs push, whichever arrives first wins • Multiple channels - pair as many as you want, each with its own private webhook • Tap to open - include a "url" field in the webhook and tapping the notification opens it • Notification history - scroll back through every ring per channel • Pull to refresh, infinite scroll through older alerts • Pair multiple devices to the same channel - phones, tablets, browsers all ring together • No account required in the app - pairing happens entirely via QR code • Long-press a channel to unsubscribe instantly PRIVATE BY DESIGN • Each channel gets its own unguessable webhook token — only you have it • Pairing codes expire after 5 minutes and are single-use • No ads, no tracking, no third-party analytics • Unpair any time and the device token is revoked server-side ABOUT rrring.cloud rrring.cloud is a free notification hub. One webhook fans out to every channel you've subscribed — phone push, browser push, email, and more transports on the way. This app is the phone half of that. Questions or feedback? Visit rrring.cloud.
Screenshots
Verdict
The clearest difference is in-app purchases: Rrring at none against ServerCat's 3. Rrring also leads on iOS requirement (15.1 vs 17.0). ServerCat's advantage is chart position (#42 vs unranked). On price, ads 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
Both are free to download. ServerCat sells 3 in-app purchases, starting at $5.99 per year. Rrring asks for nothing beyond the download.
| Parameter | ServerCat | Rrring |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1K ratings) — better | — |
| Positive reviews | 77.3% of reviews | — |
| Number of ratings | 1K — better | — |
| Update frequency | Every 5 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #42 — better | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 43 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Early Moon, LLC | Harrison Spink |
Bugs and requests
ServerCat
Reported bugs
4 issues- Connection issues and failed logins
- Server status not refreshing properly
- Crashes when switching between screens or using certain features
- Incompatibility with certain server configurations (e.g., Debian/Ubuntu only for some features)
Requested features
7 requests- Add support for SFTP
- Implement Celsius temperature display
- Add home screen widgets for server status
- Improve syncing of servers and SSH keys across devices
- Enhance Docker/container management features
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- Add support for Telnet and other protocols
- Improve terminal experience (e.g., Tmux bindings, font customization)
Rrring
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ServerCat
- Premium Annual Subscription7 Days trial$5.991 Year
- Premium Upgrade Discount$5.99
- ServerCat Lifetime Premium$18.99
Rrring
No in-app purchases









