Winter OPS vs ATIS Relay
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.
ATIS Relay
Access real-time ATIS and weather information for over 160 US airports. Get live audio, transcripts, and digital ATIS updates. Features include METARs and customizable home screen widgets.
- Live ATIS audio and transcripts
- Digital ATIS for 76 airports
- Free community access to ATIS
- METARs and interpreted METARs
- Customizable METAR widgets
- Text message ATIS updates (subscription)
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ATIS Relay: Accurate ATIS & Weather Information Access real-time, up-to-date ATIS information for more than 160 airports across the US with ATIS Relay. FEATURES • Live ATIS Audio & Transcripts: on-demand ATIS recordings and transcripts for 80+ US airports that do not have digital ATIS yet. • Digital ATIS: Up to date ATIS information for all 76 airports in the D-ATIS program. Get the latest information at a glance. • Free Community Access: Retrieve digital ATIS and previously recorded transcripts without a subscription. • METARs: Quickly determine current flight rules and view interpreted METARs • METAR Widgets: Customize your device with various-sized METAR widgets, providing quick weather updates right on your home screen (subscription required). • More Subscription Benefits: Gain full access to all features, including the option to request ATIS transcripts. Subscribers can also get ATIS updates via text message, helping you get ahead of the airplane when paired with a satellite connection. ATIS Relay is ideal for professional pilots, general aviation pilots, student pilots, flight sim enthusiasts, and aviation enthusiasts. DISCLAIMER: ATIS information is not guaranteed to be error free. Please verify with official sources. This is not an official FAA weather data source and is not intended for operational use. Any use for flight planning is at your own risk.
Screenshots
Verdict
The clearest difference is update cadence: Winter OPS at every 4 months against ATIS Relay's every 9 months. Winter OPS also leads on iOS requirement (15.0 vs 17.0). On price, review sentiment, ads and in-app purchases 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 and ATIS Relay sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
Winter OPS ships an update every 4 months, ATIS Relay every 9 months. The most recent releases landed on October 8, 2026 and September 25, 2026 respectively.
| Parameter | Winter OPS | ATIS Relay |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 months — better | Every 9 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 65 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Avimont GmbH | Ford Davis |
Customer experience
Winter OPS
ATIS Relay
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
ATIS Relay
- ATIS Relay Plus (Monthly)$5.991 Month
- ATIS Relay Plus (Annual)$24.991 Year
Questions
Is Winter OPS free?
Is ATIS Relay free?
Do Winter OPS or ATIS Relay have ads?
Which is updated more often, Winter OPS or ATIS Relay?
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