# E6B+ E6B Flight Calculator vs ZenDriver Coach

The clearest difference is in-app purchases: E6B+ E6B Flight Calculator at none against ZenDriver Coach's 3. E6B+ E6B Flight Calculator also leads on update cadence (weekly vs every 6 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. ZenDriver Coach sells 3 in-app purchases, starting at $4.99 per month. E6B+ E6B Flight Calculator asks for nothing beyond the download.

E6B+ E6B Flight Calculator ships an update weekly, ZenDriver Coach every 6 weeks. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | E6B+ E6B Flight Calculator | ZenDriver Coach |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (37 ratings)](https://appshunter.io/ios/app/e6b-plus-e6b-flight-calculator/id6742122583/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | Free | — |
| Size | 60 MB | 50 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Tung Huynh](https://appshunter.io/developer/1592795398) | [Evgenii Zhulkov](https://appshunter.io/developer/886982302) |

## What reviewers say

### E6B+ E6B Flight Calculator

[App page](https://appshunter.io/ios/app/e6b-plus-e6b-flight-calculator/id6742122583)

This aviation app provides essential tools for pilots, offering over 25 functions for complex calculations like airspeed, fuel, and navigation. It features a user-friendly interface, offline functionality, and multi-device compatibility for seamless use in the cockpit.

**Highlights:** Over 25 aviation functions, Lightning-fast unit conversions, Multi-timezone clock and timer, Precise fuel calculations, Navigation assistance, MAC & Center of Gravity calculation, Descent planning calculator, Offline functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### ZenDriver Coach

[App page](https://appshunter.io/ios/app/zendriver-coach/id6772934874)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $4.99 | per month |
| Annual subscription | $39.99 | per year |
| Lifetime payment | $79.99 | one-time |


## Frequently asked questions

### Is E6B+ E6B Flight Calculator free?

E6B+ E6B Flight Calculator is free to download, with no in-app purchases.

### Is ZenDriver Coach free?

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

### Do E6B+ E6B Flight Calculator or ZenDriver Coach have ads?

Neither E6B+ E6B Flight Calculator nor ZenDriver Coach shows ads.

### Which is updated more often, E6B+ E6B Flight Calculator or ZenDriver Coach?

E6B+ E6B Flight Calculator ships an update weekly, and ZenDriver Coach every 6 weeks. Most recently, E6B+ E6B Flight Calculator was updated on October 15, 2026 and ZenDriver Coach on October 11, 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.*