# 787 ECL vs Physics Zen

The clearest difference is rating: Physics Zen at 5.0 against 787 ECL's 1.0. Physics Zen also leads on update cadence (every 2 days vs monthly). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. 787 ECL sells 3 in-app purchases, starting at $1.99 per month and Physics Zen sells 6 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Physics Zen holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

787 ECL ships an update monthly, Physics Zen every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 787 ECL | Physics Zen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/787-ecl/id1526036910/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/physics-zen-learn-and-practice/id6808595963/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 5 MB | 84 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mohamed Farhadi](https://appshunter.io/developer/1191731876) | [Ivan Terekhin](https://appshunter.io/developer/888645337) |

## What reviewers say

### 787 ECL

[App page](https://appshunter.io/ios/app/787-ecl/id1526036910)

This app provides offline electronic checklists for B787 and B777 aircraft, designed for pilots and aviation enthusiasts. It offers an interactive way to study procedures and aircraft systems for training and self-study purposes.

**Highlights:** Offline Electronic Checklists, Normal and Non-Normal Checklists, Interactive QRH/ECL Logic Study, Simulator Preparation, Self-Study Tool, Long-Haul Downtime Review

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| B787 ECL | $1.99 | per month |
| B787 ECL | $12.99 | per year |
| B787 ECL - Life Time | $59.99 | one-time |


### Physics Zen

[App page](https://appshunter.io/ios/app/physics-zen-learn-and-practice/id6808595963)

This app provides focused, repeatable physics practice with generated problems and instant feedback. Access theory and worked solutions as needed to master concepts across various topics and exam boards.

**Highlights:** Generated physics problems, Instant answer checking, On-demand theory and solutions, Mistake journal for review, Visual aids for concepts, Offline functionality, Multiple exam paths

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Physics Zen Weekly | $3.99 | per 7 days |
| Physics Zen Monthly | $6.99 | per month |
| Physics Zen Annual | $29.99 | per year |
| Physics Zen Lifetime | $24.99 | one-time |
| Physics Zen Lifetime | $29.99 | one-time |
| Physics Zen Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is 787 ECL free?

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

### Is Physics Zen free?

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

### Which has better reviews, 787 ECL or Physics Zen?

Physics Zen is rated higher. 787 ECL averages 1.0 out of 5 from 1 ratings, while Physics Zen averages 5.0 from 1 ratings.

### Do 787 ECL or Physics Zen have ads?

Neither 787 ECL nor Physics Zen shows ads.

### Which is updated more often, 787 ECL or Physics Zen?

787 ECL ships an update monthly, and Physics Zen every 2 days. Most recently, 787 ECL was updated on November 3, 2026 and Physics Zen on October 31, 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.*