Winter OPS vs E
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Winter OPS
This application assists with de-icing and anti-icing procedures by providing holdover time calculations based on official guidelines. It also decodes SNOWTAMs and offers customizable alerts for approaching expiry times, aiding aviation operations in winter conditions.
- Holdover Time (HOT) calculations
- SNOWTAM decoding
- Customizable expiry time alerts
- Qualified fluid information
- Weather definitions
- Dark mode support
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Winter OPS supports aviation professionals during winter operations with fast access to Holdover Time information, De-/Anti-Icing guidance and SNOWTAM decoding — all in one purpose-built application. Configure the relevant operational conditions, select the applied fluid and quickly determine the corresponding Holdover Time (HOT). Compare available fluids at a glance and monitor the remaining HOT with configurable warnings and notifications. HOLDOVER TIMES: - Access Holdover Time (HOT) information based on supported FAA and Transport Canada guidance - Configure weather condition and precipitation intensity - Select outside air temperature in °C or °F - Configure fluid type and fluid/water mixture - Compare HOT values for available fluids at a glance - Consider operational parameters including wing surface, flap setting, precipitation speed and rotation speed - Display HOT start and end times using UTC, device time or countdown - Degree-Specific Holdover Times (DSHOT) available where permitted by your operator procedures HOT MONITORING: Keep track of your remaining Holdover Time during winter operations. Configure individual warning levels for: - Initial Warning - Last Warning - HOT Expiry DE-/ANTI-ICING REFERENCE: Quickly access useful operational reference information including: - One-step and two-step application guidelines - Application guidance by fluid and temperature - Qualified fluid information - Weather definitions - De-Icing and Anti-Icing terminology and definitions SNOWTAM & WINTER WEATHER: - Decode SNOWTAM information using the Global Reporting Format (GRF) - Snow intensity and visibility decoder - Present complex winter operations information in a clear and structured format DESIGNED FOR AVIATION OPERATIONS: Winter OPS is designed for pilots, flight operations, dispatch, ground operations and De-/Anti-Icing personnel who need relevant winter operations information without navigating through multiple documents and tables. The interface is optimized for quick access to operational information and can be configured according to individual requirements. Additional features include: - Light and Dark Mode - Configurable notification settings - UTC and local device time support - De-/Anti-Icing information sharing with Operations - Portrait support on iPhone - Portrait and landscape support on iPad DATA & GUIDANCE: Winter OPS uses Holdover Time data and guidance published for aircraft ground De-/Anti-Icing operations, including FAA and Transport Canada information and relevant EASA guidance. Applicable data is provided through annual subscriptions. Operators must always verify that the applicable data, procedures and winter season are approved for their operation. IMPORTANT: A subscription is needed for either all Fluids or Generic Fluids, available through in App Purchase or the respective individual Applications available in the AppStore. Winter OPS is an operational reference and support tool. It does not replace operator procedures, aircraft manufacturer documentation, applicable regulations or the professional judgement and responsibility of flight and ground personnel. Local authority requirements, operator documentation and aircraft-specific procedures must always be followed.
E
This app enhances official aviation weather reports by adding operational intelligence. It provides live active runway information, filtered critical NOTAMs, and D-ATIS integration to give pilots a clearer pre-flight operational picture.
- Live active runway identification
- Filtered critical NOTAMs
- D-ATIS integration
- Aerodrome structure display
- Smart pre-flight planning tools
- Source code for data points
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E-Metar is the aviation weather report aviators actually need. It combines the official METAR with a layer of operational intelligence that aligns with real conditions, helping you understand not just the weather, but how the airport is operating. WHAT E-METAR BRINGS METAR reports are universal and reliable, but they only describe the weather. They don’t tell you which runway is active or which NOTAMs actually matter operationally. Until now, that kind of information required expensive professional systems such as D-ATIS. E-Metar fills that gap. On top of the official METAR, we add: • Live active runways for takeoff and landing, identified automatically. • Critical NOTAMs filtered for real operational relevance. • D-ATIS integration when available. • Aerodrome structure (runway configurations and orientations). • Smart tools to quickly build a clear pre-flight operational picture. • A source code for every data point: T (observed traffic), W (inferred from wind), O (previous configuration), L (known operational logic). TRANSPARENCY AND TRACEABILITY E-Metar is not a black box. Every data point comes with its source, so you can verify, compare, and decide with confidence. Especially useful for flight preparation, operational briefings, and training. WHO IT’S FOR • Commercial, corporate, and general aviation pilots. • Flight dispatch and operational personnel. • Flight schools and aviation training centers. • Professionals and enthusiasts who want a deeper understanding of how an airport is really operating. COVERAGE 500+ airports currently covered, with continuous expansion. IMPORTANT E-Metar is a pre-flight planning support tool. It does not replace official sources of aeronautical information (AIS, AIP, official NOTAMs, and METAR/TAF from certified providers). The pilot in command remains responsible for verifying all operational information through the appropriate official channels. SUPPORT Questions, feedback, or issues? Reach out from within the app or visit e-metar.com. Keywords taf,aviation,pilot,airport,runway,notam,flight,weather,traffic,adsb,dispatcher,efb,ifr,planning
Screenshots
Verdict
The clearest difference is in-app purchases: E at none against Winter OPS's 7. E also leads on update cadence (weekly vs every 4 months). Winter OPS's advantage is iOS requirement (15.0 vs 17.0). 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. Winter OPS sells 7 in-app purchases, starting at $8.99 per year. E asks for nothing beyond the download.
Winter OPS ships an update every 4 months, E weekly. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.
| Parameter | Winter OPS | E |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 65 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Avimont GmbH | Fremmenn Dynamics S.L. |
Customer experience
Winter OPS
E
In-app purchases
Winter OPS
- 1 year generic Fluids (FAA)14 Days trial$8.991 Year
- 1 year generic Fluids (EASA)14 Days trial$8.991 Year
- 1 year generic Fluids (TC)14 Days trial$8.991 Year
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- 1 year all Fluids (FAA)$14.991 Year
- 1 year all Fluids (EASA)$14.991 Year
- 1 year all Fluids (TC)$14.991 Year
- Decoder Enabling$1.99
E
No in-app purchases








