# Profometer vs FJD Trion Model

The clearest difference is ads: FJD Trion Model at none against Profometer's shown. On price, update cadence, 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.

Profometer ships an update every 3 months, FJD Trion Model every 2 months. The most recent releases landed on September 14, 2026 and August 24, 2026 respectively.

## The numbers

| Metric | Profometer | FJD Trion Model |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 495 MB | 523 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Screening Eagle Technologies](https://appshunter.io/developer/1515215362) | [FJDynamics Europe Spzoo](https://appshunter.io/developer/1859583079) |

## What reviewers say

### Profometer

[App page](https://appshunter.io/ios/app/profometer/id1638693429)

**In-app purchases:** none


### FJD Trion Model

[App page](https://appshunter.io/ios/app/fjd-trion-model/id6478516371)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Profometer free?

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

### Is FJD Trion Model free?

FJD Trion Model is free to download, with no in-app purchases.

### Do Profometer or FJD Trion Model have ads?

Profometer shows ads; FJD Trion Model does not.

### Which is updated more often, Profometer or FJD Trion Model?

Profometer ships an update every 3 months, and FJD Trion Model every 2 months. Most recently, Profometer was updated on September 14, 2026 and FJD Trion Model on August 24, 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.*