# E6B Aviation Calculator vs iFly EFB

The clearest difference is price: iFly EFB at Free against E6B Aviation Calculator's $8.99. iFly EFB also leads on update cadence (monthly vs every 4 months). E6B Aviation Calculator's advantage is in-app purchases (none vs 8) and chart position (#127 vs unranked). On rating, review sentiment, ratings volume and ads there is nothing between them.

iFly EFB is free to download; E6B Aviation Calculator costs $8.99 up front. iFly EFB sells 8 one-off in-app purchases. E6B Aviation Calculator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for E6B Aviation Calculator against 4.7 for iFly EFB. Both are backed by a comparable volume of ratings — 148 and 365 respectively. Written reviews are what separate them: 86% of E6B Aviation Calculator's written reviews are positive against 90% of iFly EFB's.

E6B Aviation Calculator ships an update every 4 months, iFly EFB monthly. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | E6B Aviation Calculator | iFly EFB |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[4.8 (148 ratings)](https://appshunter.io/ios/app/e6b-aviation-calculator/id286046305/reviews)** | [4.7 (365 ratings)](https://appshunter.io/ios/app/ifly-efb/id655202847/reviews) |
| Number of ratings | 148 | **365** |
| Positive reviews | 86.2% of reviews | **89.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#127** | — |
| Size | 6 MB | 107 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aviation Mobile Apps, LLC.](https://appshunter.io/developer/286046308) | [Adventure Pilot, LLC](https://appshunter.io/developer/655202870) |

## What reviewers say

### E6B Aviation Calculator

[App page](https://appshunter.io/ios/app/e6b-aviation-calculator/id286046305)

**Currently charting:** #127 Top Paid · Navigation (US App Store)

This app provides over 75 aviation calculations and unit conversions for flight planning and navigation. It also offers in-app access to global aviation weather reports like METARs and TAFs, along with a handy search for weather station codes.

**Highlights:** Over 75 aviation calculations, Advanced fuel calculations, Wind and altitude calculations, Global METAR, TAF, AIRMET, SIGMET, PIREP access, ICAO weather station code search, 65+ unit conversions

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 🚀 Comprehensive calculations
- 🚀 Useful for pilots of all levels
- 🚀 Saves time compared to physical E6B
- 🚀 Reliable and consistent updates

**What reviewers complain about**

- 🐛 Occasional inaccuracies in calculations
- 🐛 Compatibility issues with newer iOS versions
- 🐛 Lack of weight and balance functionality
- 🐛 Limited support for non-US units and measurements

**Reported bugs**

- Wind calculation errors when using true course
- Decimal values displayed incorrectly in some calculations
- Aviation weather data not loading properly on some devices

**Requested features**

- Add weight and balance calculations
- Improve Mach to TAS conversion accuracy
- Include runway condition assessment matrix
- Provide more customization options
- Add support for more non-US units


### iFly EFB

[App page](https://appshunter.io/ios/app/ifly-efb/id655202847)

This app provides pilots with essential flight information in an easy-to-use format for both VFR and IFR flying. It offers advanced navigation features, real-time weather, and safety alerts to enhance situational awareness and simplify flight planning.

**Highlights:** Geo-Reference Approach Plates & Airport Diagrams, 3D Synthetic Vision / EFIS Mode, Terrain, Obstructions, Traffic, Airspace Alerts, ADS-B Support, AutoTaxi+ for Safe Taxing, RealView Airport Imagery, Complete VFR & IFR Databases and Charts

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iPad Add-On Subscription (1 Year) | $24.99 | one-time |
| IFR iPad Subscription Upgrade (1 Year) | $49.99 | one-time |
| VFR iPad Subscription (1 Year) | $79.99 | one-time |
| Base VFR Subscription | $94.99 | one-time |
| VFR/MP Subscription | $124.99 | one-time |
| VFR+IFR iPad Subscription (1 Year) | $129.99 | one-time |
| VFR/IFR Subscription | $149.99 | one-time |
| VFR/IFR/MP Subscription | $179.99 | one-time |

**What reviewers like**

- 👍 Extremely intuitive and easy to use interface
- 💰 Very affordable pricing compared to competitors
- 🎨 Highly customizable instrument layouts and display
- 📊 Excellent flight planning capabilities
- 🗺️ Clear, sharp, high-resolution maps and charts

**What reviewers complain about**

- 🐛 App occasionally locks up and requires restart
- 📍 Inaccurate and outdated FBO information
- 🗺️ Limited international/Canadian map coverage
- 🎨 Dated user interface design (1990s aesthetic)
- 📡 GPS connectivity issues on iPad iOS 18+

**Reported bugs**

- App freezes when navigating between menus
- Settings not saved after app lock
- GPS weak signal and satellite lock issues on iOS 18+
- Terrain loading delays during scrolling
- Compatibility issues with some external GPS devices (Dual 150)

**Requested features**

- Logbook functionality
- Sunset/sunrise times display
- One-button night mode
- Annotation tools for approach plates
- Scratch pad for ATC notes


## Frequently asked questions

### Is E6B Aviation Calculator free?

E6B Aviation Calculator costs $8.99, with no in-app purchases.

### Is iFly EFB free?

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

### Which has better reviews, E6B Aviation Calculator or iFly EFB?

E6B Aviation Calculator is rated higher. E6B Aviation Calculator averages 4.8 out of 5 from 148 ratings, while iFly EFB averages 4.7 from 365 ratings.

### Do E6B Aviation Calculator or iFly EFB have ads?

Neither E6B Aviation Calculator nor iFly EFB shows ads.

### Which is updated more often, E6B Aviation Calculator or iFly EFB?

E6B Aviation Calculator ships an update every 4 months, and iFly EFB monthly. Most recently, E6B Aviation Calculator was updated on November 6, 2026 and iFly EFB on November 1, 2026.

---

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