# x vs Engine Programme

The clearest difference is rating: Engine Programme at 5.0 against x's 4.3. Engine Programme also leads on in-app purchases (none vs 1). x's advantage is ratings volume (3 vs 1) and iOS requirement (13.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. x sells 1 one-off in-app purchase. Engine Programme asks for nothing beyond the download.

Engine Programme holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

x ships an update every 3 months, Engine Programme every 4 months. The most recent releases landed on September 19, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | x | Engine Programme |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (3 ratings)](https://appshunter.io/ios/app/x-calendar/id365737132/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/engine-programme/id606123806/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 67.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 24 MB | 6 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [x-root Software GmbH](https://appshunter.io/developer/333992039) | [Everllence SE](https://appshunter.io/developer/588307672) |

## What reviewers say

### x

[App page](https://appshunter.io/ios/app/x-calendar/id365737132)

This app provides a comprehensive overview of public holidays, regional holidays, and school vacations for various countries. It synchronizes with your personal calendar and offers a home screen widget for quick access to upcoming events and holidays.

**Highlights:** Public and regional holiday tracking, School vacation information, Personal calendar synchronization, Home screen widget, Quick calendar entry creation, Multi-country support

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All holiday and school holidays access for 365 days | $0.99 | one-time |


### Engine Programme

[App page](https://appshunter.io/ios/app/engine-programme/id606123806)

This professional planning tool assists marine professionals in selecting ship engines by providing detailed technical specifications and fuel consumption data. It supports comparisons for a wide range of engine types, including advanced technologies for current and future emissions standards.

**Highlights:** Engine selection support, Detailed fuel consumption data, Engine layout diagrams, Technical specifications, Comparison of engine configurations, Support for modern engine technologies

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is x free?

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

### Is Engine Programme free?

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

### Which has better reviews, x or Engine Programme?

Engine Programme is rated higher. x averages 4.3 out of 5 from 3 ratings, while Engine Programme averages 5.0 from 1 ratings.

### Do x or Engine Programme have ads?

Neither x nor Engine Programme shows ads.

### Which is updated more often, x or Engine Programme?

x ships an update every 3 months, and Engine Programme every 4 months. Most recently, x was updated on September 19, 2026 and Engine Programme on September 21, 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.*