# PRODEFIS TPMS vs E

The clearest difference is update cadence: E at every 2 months against PRODEFIS TPMS's every 4 months. E also leads on iOS requirement (14.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

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

PRODEFIS TPMS ships an update every 4 months, E every 2 months. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | PRODEFIS TPMS | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/e-jet-load-25-fms-trainer-pro/id1611902086/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 1 MB | 449 MB |
| Requires iOS | 18.6 | **14.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [prodefis gmbh](https://appshunter.io/developer/1450178012) | [Heading 365](https://appshunter.io/developer/1609857583) |

## What reviewers say

### PRODEFIS TPMS

[App page](https://appshunter.io/ios/app/prodefis-tpms/id1450178013)

**Features:** macOS Compatibility

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-jet-load-25-fms-trainer-pro/id1611902086)

This professional training application simulates a commercial aircraft's Flight Management System (FMS) for pilots and training organizations. It offers realistic functions, guided tours, error analysis, and failure simulations to enhance FMS skills.

**Highlights:** Realistic FMS simulation, Free Play Mode with worldwide navigation, Guided tour and tutorial function, Static analyzer with feedback, Error control and explanation, Failure case simulation, Integrated CPDLC functions

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

**In-app purchases:** none


## Frequently asked questions

### Is PRODEFIS TPMS free?

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

### Is E free?

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

### Do PRODEFIS TPMS or E have ads?

Neither PRODEFIS TPMS nor E shows ads.

### Which is updated more often, PRODEFIS TPMS or E?

PRODEFIS TPMS ships an update every 4 months, and E every 2 months. Most recently, PRODEFIS TPMS was updated on October 25, 2026 and E on October 7, 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.*