# Winter OPS vs E

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.

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.

## The numbers

| Metric | Winter OPS | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/e-metar-enhanced-metar/id6762455454/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 65 MB | 17 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Avimont GmbH](https://appshunter.io/developer/488879220) | [Fremmenn Dynamics S.L.](https://appshunter.io/developer/1713290314) |

## What reviewers say

### Winter OPS

[App page](https://appshunter.io/ios/app/winter-ops/id488881673)

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.

**Highlights:** Holdover Time (HOT) calculations, SNOWTAM decoding, Customizable expiry time alerts, Qualified fluid information, Weather definitions, Dark mode support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 year generic Fluids (FAA) | $8.99 | per year |
| 1 year generic Fluids (EASA) | $8.99 | per year |
| 1 year generic Fluids (TC) | $8.99 | per year |
| 1 year all Fluids (FAA) | $14.99 | per year |
| 1 year all Fluids (EASA) | $14.99 | per year |
| 1 year all Fluids (TC) | $14.99 | per year |
| Decoder Enabling | $1.99 | one-time |


### E

[App page](https://appshunter.io/ios/app/e-metar-enhanced-metar/id6762455454)

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.

**Highlights:** Live active runway identification, Filtered critical NOTAMs, D-ATIS integration, Aerodrome structure display, Smart pre-flight planning tools, Source code for data points

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Winter OPS free?

Winter OPS is free to download, with in-app purchases available.

### Is E free?

E is free to download, with no in-app purchases.

### Do Winter OPS or E have ads?

Neither Winter OPS nor E shows ads.

### Which is updated more often, Winter OPS or E?

Winter OPS ships an update every 4 months, and E weekly. Most recently, Winter OPS was updated on October 23, 2026 and E on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*