ServerGuard24 vs SmartPLL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ServerGuard24
Monitor servers, websites, databases, and online services directly from your iPhone. Get real-time status updates, availability, and performance insights for your critical online assets. Ensure your business processes are always running smoothly.
- Availability Monitoring
- Performance Monitoring
- Business Process Monitoring
- 24/7 Downtime Alerts
- Real-time Status Updates
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ServerGuard24 is the perfect way to monitor your servers, websites, databases, online services, e-mail and more directly from your iPhone. By using this app you have the status of your monitoring scenario available at your fingertips – at any time! Features: - Availability Monitoring Get an overview of your servers and all online services at once and receive detailed information on downtimes and errors 24/7. - Performance Monitoring Monitor the performance of websites and web-based applications and avoid frustration of customers, prospects, and employees because of slow sites and services. - Business Process Monitoring Make sure that you do not lose any revenues by always knowing if your online business processes (e.g. login, registration, check-out…) work. Requirements: To use ServerGuard24 you need a ServerGuard24 account. Please register at www.serverguard24.com
SmartPLL
This application allows users to program and control Z-COMM SSG series Smart Phase Locked Loop (PLL) modules. Adjust frequency, sweep mode, step time, and power output via Bluetooth or USB. Features LED status indicators and a rugged design for field or benchtop use.
- Bluetooth programming
- USB connectivity
- Frequency adjustment
- Sweep mode control
- Step time and size configuration
- Power output adjustment
- LED status indicators
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The Z-COMM SSG series of Smart Phase Locked Loop (PLL) modules provide high performance in a compact package suitable for any number of applications. Fully programmable through a unique Bluetooth interface, or USB cable, the user may adjust functions such as frequency, sweep mode, step time, step size, and power output, among others. LED indicators provide a visual cue of the status of the various functions. Its rugged enclosure lends itself to in-field use as well as bench top testing. The highly reliable output signal, excellent phase noise, and flexibility of an internal reference or input for an external reference, provides RF engineers with an adaptable RF tool.
Screenshots
Verdict
The clearest difference is rating: SmartPLL at 5.0 against ServerGuard24's 2.5. SmartPLL also leads on iOS requirement (13.1 vs 16.0). On price, ratings volume, update cadence and ads 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.
SmartPLL holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
ServerGuard24 ships an update every 7 months, SmartPLL every 11 months. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.
| Parameter | ServerGuard24 | SmartPLL |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 7 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 13.1 — better |
| Further details — not scored | ||
| Size | 13 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | ServerGuard24 GmbH | Z-Communications |
Customer experience
ServerGuard24
SmartPLL
In-app purchases
ServerGuard24
No in-app purchases
SmartPLL
No in-app purchases









