VATRadar vs SimAlert
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VATRadar
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VATRadar brings the VATSIM network to your iPhone and iPad. Follow your own flight, see which controllers are online, browse the traffic connected right now, and keep track of the events you do not want to miss. MY FLIGHT Sign in with your VATSIM account and VATRadar picks up your flight automatically whenever you are connected. • Altitude, heading, ground speed and vertical speed • Your transponder code and the code ATC assigned you • Departure, arrival and alternate airports • Filed route, filed altitude and remaining distance • Aircraft type and current phase of flight CONTROLLERS AND AIRPORTS Browse the airports with ATC online, or work through FIRs and UIRs to see who is covering a region. Open any airport for: • The controllers and ATIS stations currently online • Live ATIS information • The current METAR for the field • Runways with headings, lengths, widths, surfaces and elevations • Published frequencies PILOTS Every pilot connected to the network, searchable by callsign, VATSIM CID or name. Open any flight to see the same detail you get for your own. EVENTS Browse upcoming VATSIM events, read the full briefing, and mark the ones you plan to fly as favorites. PUSH NOTIFICATIONS • Reminders for your favorited events, at the lead times you choose • VATSIM private messages, including a controller's contact me • SELCAL alerts Private message and SELCAL notifications need the free vPilot Push Notification Plugin, installed on the Windows PC you fly from. You can download it from inside the app, or at vatradar.io/vpilot-plugin. NETWORK STATS Connected clients and unique users, pilots online, controllers broken down by position, ATIS stations and prefiled flight plans. ACCESSIBLE BY DESIGN VATRadar is built by a blind developer and sim pilot, so VoiceOver is not an afterthought here - it is how the app gets used every day. Every screen, list and control is designed to be navigated comfortably without sight. The same care extends to the rest of Apple's accessibility features. VATRadar uses standard iOS controls throughout, so it works with Larger Text, Bold Text, increased contrast and Voice Control, and follows your Dark Mode setting. If something does not work with the accessibility features you rely on, that is a bug to be fixed, not a limitation to live with. FREE VATRadar is free. There are no ads, no in-app purchases and no subscriptions. Signing in requires a VATSIM account, which is also free. VATRadar is intended for flight simulation on the VATSIM network. The airport, runway, frequency, weather and ATIS information it shows must not be used for real-world flight planning or navigation. VATRadar is an independent project, and is not affiliated with or endorsed by VATSIM.
SimAlert
This app provides real-time notifications for virtual pilots and air traffic controllers on VATSIM and IVAO networks. It alerts users when entering controlled airspace or when favorite controllers go online. Features include a live coverage map and flight path visualization.
- Real-time ATC coverage map
- Controlled airspace entry notifications
- Favorite controller tracking
- Flight path visualization
- Multi-network support (VATSIM/IVAO)
- Multiple callsign tracking
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SimAlert is the essential companion app for virtual pilots and air traffic controllers on VATSIM and IVAO networks. Never miss controlled airspace or your favorite controllers with real-time notifications and an interactive coverage map. For Virtual Pilots Our detection system monitors your flight and instantly notifies you when entering controlled airspace. Whether it's Center, Approach, Tower, or Ground - SimAlert ensures you're always aware of ATC presence. For ATC Enthusiasts Follow your favorite controllers and receive notifications when they come online or go offline. Perfect for pilots who want to fly with specific controllers or track activity at favorite airports. Live Coverage Map Visualize ATC coverage in real-time with our interactive map. See which FIRs and airports have active controllers at a glance. Your tracked flight appears with a complete route from origin to destination. Key Features: • Live Coverage Map - Real-time ATC coverage across VATSIM and IVAO • Flight Path Visualization - See your tracked flight on the map • Dual Mode - Track flights for coverage OR follow specific controllers • Multi-Network Support - Works with both VATSIM and IVAO • Multiple Callsign Tracking - Monitor multiple aircraft simultaneously • Controller Tracking - Know when specific controllers start or end sessions • Real-Time Monitoring - Updates every 15 seconds • Dark Mode - Easy on the eyes during long sessions • Battery Efficient - Optimized background processing How It Works: For Pilots: 1. Register your callsign in the Pilot tab 2. View live coverage on the Map tab 3. Receive notifications when entering ATC coverage For ATC Tracking: 1. Add controller callsigns in the ATC tab 2. Get notified when they come online or go offline Coverage Types Detected: • Flight Information Regions (FIR/UIR) • Approach, Tower, and Ground zones • Oceanic and special event areas • All positions from DEL to CTR Privacy First: SimAlert only tracks callsigns you explicitly register. Your privacy is our priority. Background Operation: SimAlert works silently in the background - we'll alert you when it matters. Perfect for long oceanic crossings or when away from your simulator. Note: Requires active flights/controllers on VATSIM or IVAO. Internet connection required. Not affiliated with VATSIM or IVAO. Transform your virtual aviation experience with SimAlert!
Screenshots
Verdict
The clearest difference is price: VATRadar at Free against SimAlert's $2.99. SimAlert's advantage is update cadence (every 9 days vs every 5 weeks) and iOS requirement (15.1 vs 26.0). On ads, in-app purchases 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
VATRadar is free to download; SimAlert costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
VATRadar ships an update every 5 weeks, SimAlert every 9 days. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.
| Parameter | VATRadar | SimAlert |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | — | 3.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 5 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 6 MB | 23 MB |
| Age rating | 17+ | 9+ |
| Developer | Robin Kipp | ELEFTHERIOS KOROROS |
In-app purchases
VATRadar
No in-app purchases
SimAlert
No in-app purchases








