MotionTracker vs SP Investigator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MotionTracker
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.
- Real-time motion detection
- Original and motion video views
- Adjustable motion sensitivity
- Highlights motion in green
- Works with standard iPhone camera
Read full descriptionHide full description
MotionTracker v1.0 by Simon Wilson ================================== Small app that can be used to identify motion using the standard camera in iphone devices! The application contains two capture views, above is the original video, below is the motion video with motion highlighted in green. The amount of motion required to trigger green areas (Sensitivity) can be adjusted using the slider. Perfect for adapting to different lighting conditions.
SP Investigator
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.
- EVP recording and analysis
- EMF detection
- Temperature readings
- Document videos, audio, photos
- Compile evidence into PDF
- Share findings
Read full descriptionHide full description
Whether you're a seasoned investigator or a curious enthusiast, our app is your gateway to uncovering the mysteries that lie beyond the realm of the ordinary. With SP Investigator, you'll have access to a powerful toolkit designed to enhance your paranormal research experience. From EVP (Electronic Voice Phenomenon) recording and analysis to EMF (Electromagnetic Field) detection, our app equips you with the tools needed to detect and document paranormal activity with ease. Don't let the unknown remain a mystery – download SP Investigator today and unlock the secrets of the supernatural! Document: - Videos - Audio (EVP) - Photos - EMF readings - Temperature readings ... and pull everything together in one handy PDF, or share your evidence for further analysis and storage. Note: SP Investigator does not guarantee captures, or that anything captured through the device is paranormal. Anything you believe you have captured should be analysed through an open but sceptical mindset. The app is a tool to aid with genuine, research-led investigations.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | MotionTracker | SP Investigator |
|---|---|---|
| Price | $0.99 — better | $7.99 |
| Rating | 1.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 38 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Nicholas Wilson | DANIEL CHRISTOPHER TUCK |
Customer experience
MotionTracker
SP Investigator
In-app purchases
MotionTracker
No in-app purchases
SP Investigator
No in-app purchases
Questions
Is MotionTracker free?
Is SP Investigator free?
Which has better reviews, MotionTracker or SP Investigator?
Do MotionTracker or SP Investigator have ads?
Which is updated more often, MotionTracker or SP Investigator?
Other comparisons
