# Motion Log Plus vs Trajectory

The clearest difference is price: Trajectory at Free against Motion Log Plus's $2.99. Trajectory also leads on update cadence (fortnightly vs every 22 months). Motion Log Plus's advantage is ads (none vs shown) and device support (3 vs 1). On in-app purchases there is nothing between them.

Trajectory is free to download; Motion Log Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Motion Log Plus ships an update every 22 months, Trajectory fortnightly. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Motion Log Plus | Trajectory |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/motion-log-plus/id1487352498/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 22 months | **Fortnightly** |
| Monetization | Paid | — |
| Size | 2 MB | 36 MB |
| Requires iOS | **13.1** | 17.7.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Motion Log Plus

[App page](https://appshunter.io/ios/app/motion-log-plus/id1487352498)

This tool captures and visualizes motion data from your iOS device, including orientation, attitude, and acceleration. You can preview recordings in 3D and export log files for further analysis.

**Highlights:** Capture device orientation, attitude, and acceleration, Preview motion data in 3D, Rename and delete log files, Export motion log files, Turn off screen while recording

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

**In-app purchases:** none


### Trajectory

[App page](https://appshunter.io/ios/app/trajectory-detection/id6511212764)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Motion Log Plus free?

Motion Log Plus costs $2.99, with no in-app purchases.

### Is Trajectory free?

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

### Do Motion Log Plus or Trajectory have ads?

Trajectory shows ads; Motion Log Plus does not.

### Which is updated more often, Motion Log Plus or Trajectory?

Motion Log Plus ships an update every 22 months, and Trajectory fortnightly. Most recently, Motion Log Plus was updated on October 22, 2026 and Trajectory on October 11, 2026.

---

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