# FlightReady E6B vs Stratus Horizon Pro

The clearest difference is price: Stratus Horizon Pro at Free against FlightReady E6B's $7.99. Stratus Horizon Pro also leads on update cadence (every 2 months vs every 3 months) and iOS requirement (16.6 vs 18.6). FlightReady E6B's advantage is review sentiment (85% vs 42%) and rating (4.7 vs 3.8). On ads and device support there is nothing between them.

Stratus Horizon Pro is free to download; FlightReady E6B costs $7.99 up front. Stratus Horizon Pro sells 2 in-app purchases, starting at $4.99 per month. FlightReady E6B asks for nothing beyond the download.

FlightReady E6B holds the better App Store score, 4.7 against 3.8. That said, the two scores are not equally well evidenced: FlightReady E6B has 1.1K ratings behind it against 36, so its average is the more settled of the two. Written reviews point the same way: 85% of FlightReady E6B's written reviews are positive against 42% of Stratus Horizon Pro's.

FlightReady E6B ships an update every 3 months, Stratus Horizon Pro every 2 months. The most recent releases landed on September 22, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | FlightReady E6B | Stratus Horizon Pro |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[4.7 (1.1K ratings)](https://appshunter.io/ios/app/flightready-e6b/id999497481/reviews)** | [3.8 (36 ratings)](https://appshunter.io/ios/app/stratus-horizon-pro/id1001279833/reviews) |
| Number of ratings | **1.1K** | 36 |
| Positive reviews | **85.3% of reviews** | 41.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#56** | — |
| Size | 9 MB | 281 MB |
| Requires iOS | 18.6 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aeroapps Technology](https://appshunter.io/developer/923860276) | [Appareo Systems, LLC](https://appshunter.io/developer/440740330) |

## What reviewers say

### FlightReady E6B

[App page](https://appshunter.io/ios/app/flightready-e6b/id999497481)

**Currently charting:** #56 Top Paid · Navigation (US App Store)

This aviation utility provides over 100 functions, conversions, and utilities for pilots. It offers accurate calculations for flight planning, performance, navigation, and aerodynamics, surpassing other E6B apps with its comprehensive and precise scientific formulas.

**Highlights:** Over 100 aviation functions, Accurate scientific formulas, Flight planning calculations, Performance metrics, Navigation tools, Extensive unit conversions, Weight & Balance calculations

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient calculations
- 💡 Useful features for pilots
- 👍 Intuitive interface
- 👍 Saves time during flight planning

**What reviewers complain about**

- 🐛 Pressure conversion issues
- 🐛 App crashes
- 🐛 Calculation problems
- 🐛 Lack of seconds in time measurements

**Reported bugs**

- Fuel computation functions crashing
- New extra functions not working

**Requested features**

- Add wind correction angle calculation
- Include seconds in time measurements
- Provide user manual or instructions


### Stratus Horizon Pro

[App page](https://appshunter.io/ios/app/stratus-horizon-pro/id1001279833)

This app provides a backup Attitude Heading Reference System (AHRS) for pilots, displaying pitch and bank information on a tablet. It also offers radio transcription and playback of air traffic control communications, converting audio to text for easy reference. Firmware updates for compatible devices are also available.

**Highlights:** Backup Attitude Heading Reference System (AHRS), Responsive pitch and bank instrument display, Automatic AHRS alignment, Radio transcription and playback of ATC communications, Visual assist for referencing audio clips, Firmware updates for Stratus receivers, Day, night, and heads-up display modes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ATC Transcription - Monthly | $4.99 | per month |
| ATC Transcription - Yearly | $49.99 | per year |


## Frequently asked questions

### Is FlightReady E6B free?

FlightReady E6B costs $7.99, with no in-app purchases.

### Is Stratus Horizon Pro free?

Stratus Horizon Pro is free to download, with in-app purchases available.

### Which has better reviews, FlightReady E6B or Stratus Horizon Pro?

FlightReady E6B is rated higher. FlightReady E6B averages 4.7 out of 5 from 1.1K ratings, while Stratus Horizon Pro averages 3.8 from 36 ratings.

### Do FlightReady E6B or Stratus Horizon Pro have ads?

Neither FlightReady E6B nor Stratus Horizon Pro shows ads.

### Which is updated more often, FlightReady E6B or Stratus Horizon Pro?

FlightReady E6B ships an update every 3 months, and Stratus Horizon Pro every 2 months. Most recently, FlightReady E6B was updated on September 22, 2026 and Stratus Horizon Pro on September 13, 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.*