Uptime Koala vs Shellter
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Uptime Koala
Read full descriptionHide full description
WHAT IS THIS? Mobile companion app for the open-source Uptime Monitor platform. Monitor your websites and services with real-time push notifications when they go down. KEY FEATURES - Real-time push notifications for downtime events - View all monitors and their status at a glance - Interactive response time charts - Uptime analytics (24h, 7d, 30d periods) - Detailed incident logs - Secure passwordless OTP authentication GETTING STARTED 1. Download this app and sign in 2. Set up monitors from the web dashboard or app 3. Get instant alerts on your phone TWO WAYS TO USE - Cloud: Use our hosted version at uptimemonitor.screenapp.io โ no setup required, get started instantly. - Self-hosted: Deploy your own backend for full control over your data and infrastructure. GitHub: https://github.com/screenappai/uptime-monitor PERFECT FOR DevOps engineers, system administrators, web developers, and IT teams who need mobile access to their uptime monitoring. OPEN SOURCE Fully open-source project. Self-host or use the cloud. MIT licensed. GitHub: https://github.com/screenappai/uptime-monitor Privacy Policy: https://screenapp.io/help/privacy-policy Terms of Service: https://screenapp.io/help/terms-and-conditions
Shellter
A local-only client for SSH, SFTP, and FTP connections. It offers a real terminal experience, secure file management, and robust host key verification, all without requiring accounts or sending user data.
- Real interactive terminal with xterm rendering
- SFTP/FTP file browsing, upload, and download
- Host key pinning for secure SSH connections
- Secure storage of passwords and private keys
- Local-only operation with no account needed
Read full descriptionHide full description
Shellter is an SSH, SFTP and FTP client that keeps everything on your phone. There is no account to create, nothing syncs, and the app sends no telemetry. It opens connections to the servers you type in, and makes no other network request. That is the whole product. A REAL TERMINAL โ An interactive shell rendered with xterm, not a toy console. It follows the keyboard, resizes the remote PTY when you rotate the phone, and keeps 10,000 lines of scrollback FILES WITHOUT A SECOND LOGIN โ Browse, upload, download, rename, delete and create folders over SFTP or FTP. Open the file browser from inside a live SSH session and it reuses that connection instead of opening another one. A download never silently overwrites a file you already have. HOST KEYS, PINNED AND CHECKED โ The server's host key is pinned the first time you connect and compared on every reconnect. If it does not match, the connection stops BEFORE authentication โ your password is never sent to a server that failed the check. WHERE YOUR SECRETS LIVE โ Passwords and private keys go into the iOS Keychain, hardware-backed where supported, stored "this device only" so they cannot be restored onto another phone. HONEST ABOUT PROTOCOLS โ SSH and SFTP are verified by host-key pinning. FTPS is encrypted but does not verify the certificate. FTP is cleartext. Prefer SFTP.
Screenshots
Verdict
The clearest difference is iOS requirement: Uptime Koala at 13.0 against Shellter's 15.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Uptime Koala | Shellter |
|---|---|---|
| Price | Free | Free |
| Positive reviews | โ | 100.0% of reviews |
| Update frequency | Every 2 weeks | โ |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | โ | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 20 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | ScreenApp | Blocify LLC |
In-app purchases
Uptime Koala
No in-app purchases
Shellter
No in-app purchases









