SignalSim vs Cal.com
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SignalSim
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SignalSim – The Official Simulator for the NAST Automation 5 LED Smart Signal Tower Planning to integrate a PATLITE signal light into your Universal Robots cobot cell? SignalSim lets you fully test the signal tower's functionality – before purchasing the hardware. ——— HOW DOES IT WORK? ——— The app connects via TCP/IP to your UR robot controller (with the NAST Automation URCap installed incl. test key). All control commands that the URCap would send to a real PATLITE signal tower are received by SignalSim and displayed as a visual simulation in real time. ——— WHAT IS SIMULATED? ——— → 5 LED segments with configurable signal colors (Red · Yellow · Yellow-Green · Green · Blue · White · Magenta) → Flash function per segment → Buzzer indicator → Status feedback to the robot controller → Clear command (reset all LEDs) ——— REQUIREMENTS ——— → Universal Robots cobot with PolyScope 5 or PolyScope X (UR Series: UR8L · UR15 · UR18 · UR20 · UR30 | e-Series: UR3e · UR7e · UR12e · UR16e) → NAST Automation URCap incl. test key (available free of charge at nast-automation.de) → Wi-Fi connection on the same network as the robot → iOS 15 or later ——— WHO IS THIS APP FOR? ——— → System integrators looking to demonstrate the signal solution to customers → Production planners who want to validate the UR integration upfront → End customers and prospects evaluating before purchasing → URCap developers who want to test without physical hardware ——— ABOUT NAST AUTOMATION ——— NAST Automation is a UR+ developer of Universal Robots. The 5 LED Smart Signal Tower is available in the official UR Marketplace and is delivered including the URCap. The URCap incl. test key is available free of charge at nast-automation.de.
Cal.com
This mobile app simplifies meeting scheduling on the go. It allows users to book, reschedule, and cancel appointments with ease, syncing with their existing calendars and providing real-time availability. Smart notifications help users stay organized with upcoming events.
- Instant scheduling on mobile
- Real-time calendar sync
- Smart event notifications
- Seamless integration with tools
- Reschedule and cancel meetings
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Cal.com Companion App: Schedule Meetings Effortlessly on the Go! Tired of juggling calendars and emails to book meetings? The Cal.com Companion App brings the power of Cal.com right to your fingertips, making scheduling seamless, fast, and mobile-friendly. Whether you're in a rush between calls or planning your week from anywhere, this app ensures you never miss a beat. Key Features: - Instant Scheduling: Book, reschedule, or cancel meetings with just a few taps—no desktop required. - Real-Time Availability: Syncs with your Cal.com calendar to show open slots and avoid double-booking. - Smart Notifications: Get push alerts for upcoming events, reminders, and confirmations to stay organized. (coming soon) - Easy Integration: Connects seamlessly with your email, video tools, and team calendars for hassle-free collaboration. Perfect for busy professionals, freelancers, and teams who value time. Download now and transform how you manage your schedule—anytime, anywhere! Available on iOS. Free for individuals to download without a subscription.
Screenshots
Verdict
SignalSim and Cal.com are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | SignalSim | Cal.com |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (214 ratings) — better |
| Positive reviews | — | 54.5% of reviews |
| Number of ratings | — | 214 — better |
| Update frequency | — | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 6 MB | 41 MB |
| Age rating | 17+ | 4+ |
| Developer | Koordinauten | Cal.com, Inc. |
In-app purchases
SignalSim
No in-app purchases
Cal.com
No in-app purchases









