# iPreFlight3 vs TechPubs Embraer

The clearest difference is rating: iPreFlight3 at 3.1 against TechPubs Embraer's 1.6. On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iPreFlight3 holds the better App Store score, 3.1 against 1.6. Both are backed by a comparable volume of ratings — 55 and 19 respectively. Written reviews point the same way: 5% of iPreFlight3's written reviews are positive against 0% of TechPubs Embraer's.

iPreFlight3 ships an update every 6 weeks, TechPubs Embraer every 3 weeks. The most recent releases landed on August 19, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | iPreFlight3 | TechPubs Embraer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (55 ratings)](https://appshunter.io/ios/app/ipreflight3/id779654127/reviews)** | [1.6 (19 ratings)](https://appshunter.io/ios/app/techpubs-embraer/id1540800491/reviews) |
| Number of ratings | **55** | 19 |
| Positive reviews | **5.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 30 MB | 23 MB |
| Requires iOS | 16.0 | **15.5** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aircraft Performance Group, LLC](https://appshunter.io/developer/370256841) | [EMBRAER S.A.](https://appshunter.io/developer/507436833) |

## What reviewers say

### iPreFlight3

[App page](https://appshunter.io/ios/app/ipreflight3/id779654127)

This app helps pilots quickly calculate available payload and fuel for flights. It integrates runway analysis, weight and balance, and flight planning with weather data. Users can prepare flight books and releases, and share them with crew.

**Highlights:** Max Payload Estimator (MPE™), Runway Analysis (RWA), Weight and Balance (WB), Flight Planning with Fuel Calculation, Flight Book preparation, Flight Release generation and sharing

**In-app purchases:** none


### TechPubs Embraer

[App page](https://appshunter.io/ios/app/techpubs-embraer/id1540800491)

Access Embraer Technical Publications on your iPad and eliminate paper. Features include keyword search, bookmarking, favorites, history, and comment submission. Publications are updated over Wi-Fi.

**Highlights:** Download Embraer Technical Publications, Go paperless, Keyword search, Bookmarking pages, Marking favorite manuals, History log, Send comments to Embraer

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is iPreFlight3 free?

iPreFlight3 is free to download, with no in-app purchases.

### Is TechPubs Embraer free?

TechPubs Embraer is free to download, with no in-app purchases.

### Which has better reviews, iPreFlight3 or TechPubs Embraer?

iPreFlight3 is rated higher. iPreFlight3 averages 3.1 out of 5 from 55 ratings, while TechPubs Embraer averages 1.6 from 19 ratings.

### Do iPreFlight3 or TechPubs Embraer have ads?

Neither iPreFlight3 nor TechPubs Embraer shows ads.

### Which is updated more often, iPreFlight3 or TechPubs Embraer?

iPreFlight3 ships an update every 6 weeks, and TechPubs Embraer every 3 weeks. Most recently, iPreFlight3 was updated on August 19, 2026 and TechPubs Embraer on September 17, 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.*