# MotionTracker vs SP Investigator

The clearest difference is review sentiment: SP Investigator at 100% against MotionTracker's 0%. SP Investigator also leads on rating (5.0 vs 1.0) and update cadence (every 5 days vs every 38 months). MotionTracker's advantage is price ($0.99 vs $7.99) and iOS requirement (15.6 vs 17.0). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

MotionTracker costs $0.99 and SP Investigator $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SP Investigator holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 0% of MotionTracker's written reviews are positive against 100% of SP Investigator's.

MotionTracker ships an update every 38 months, SP Investigator every 5 days. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | MotionTracker | SP Investigator |
| --- | --- | --- |
| Price | **$0.99** | $7.99 |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/motiontracker/id541432510/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sp-investigator/id6478143289/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 5 days** |
| Monetization | Paid | Paid |
| Size | 2 MB | 9 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nicholas Wilson](https://appshunter.io/developer/440497890) | [DANIEL CHRISTOPHER TUCK](https://appshunter.io/developer/1731959021) |

## What reviewers say

### MotionTracker

[App page](https://appshunter.io/ios/app/motiontracker/id541432510)

This application uses your device's camera to detect and highlight motion in real-time. It features two viewing panes: one for the original video feed and another for the motion-highlighted feed in green. Adjust the sensitivity to adapt to various lighting conditions.

**Highlights:** Real-time motion detection, Original and motion video views, Adjustable motion sensitivity, Highlights motion in green, Works with standard iPhone camera

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

**In-app purchases:** none


### SP Investigator

[App page](https://appshunter.io/ios/app/sp-investigator/id6478143289)

This app provides tools for paranormal research, including EVP recording, EMF detection, and temperature readings. Document your findings with videos, audio, photos, and readings, then compile them into a PDF or share for further analysis.

**Highlights:** EVP recording and analysis, EMF detection, Temperature readings, Document videos, audio, photos, Compile evidence into PDF, Share findings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MotionTracker free?

MotionTracker costs $0.99, with no in-app purchases.

### Is SP Investigator free?

SP Investigator costs $7.99, with no in-app purchases.

### Which has better reviews, MotionTracker or SP Investigator?

SP Investigator is rated higher. MotionTracker averages 1.0 out of 5 from 1 ratings, while SP Investigator averages 5.0 from 1 ratings.

### Do MotionTracker or SP Investigator have ads?

Neither MotionTracker nor SP Investigator shows ads.

### Which is updated more often, MotionTracker or SP Investigator?

MotionTracker ships an update every 38 months, and SP Investigator every 5 days. Most recently, MotionTracker was updated on October 19, 2026 and SP Investigator on October 16, 2026.

---

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