Physics Toolbox Sensor Suite vs Video Stopwatch SC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Physics Toolbox Sensor Suite
This app turns your smartphone into a scientific instrument suite, enabling measurement, recording, analysis, and export of real-time sensor data. It offers tools for kinematics, acoustics, light, magnetism, and more, suitable for students, educators, researchers, and hobbyists.
- Real-time sensor data measurement
- Data recording and analysis
- Data export functionality
- Kinematics tools (accelerometer, gyroscope)
- Acoustics tools (sound meter, oscilloscope)
- Magnetism tools (compass, magnetometer)
- AR visualization for magnetic fields and measurements
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Whether you’re a student, educator, researcher, or hobbyist, Physics Toolbox transforms your smartphone’s built-in sensors into a powerful suite of scientific instruments. Easily measure, record, analyze, and export real-time data for a variety of uses—from classroom experiments to cutting-edge research. KINEMATICS G-Force Meter Linear Accelerometer Gyroscope Inclinometer Motion Visualizer (LiDAR-tracked position and velocity) ACOUSTICS Sound Meter Tone Detector Tone Generator Oscilloscope Spectrum Analyzer Spectrogram LIGHT Light Meter Color Detector Proximeter Stroboscope MAGNETISM Compass Magnetometer Magna-AR (AR visualization of magnetic field vectors) OTHER Barometer GPS - latitude, longitude, altitude, speed, direction, number of satellites Ruler-AR (AR-estimated measurements) COMBINATION Multi Record Roller Coaster GAME Play (data-verified challenges)
Video Stopwatch SC
Record, track, and analyze timing data from videos or manual input. Compare performances side-by-side and organize results in detailed datasheets. Enhance training with advanced video analysis tools.
- Record and analyze video timing
- Manual logging stopwatch
- Side-by-side video comparison
- Organized data sheets
- Frame-by-frame review
- Solo training mode
- Advanced video controls
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Video Stopwatch The world’s most versatile and comprehensive mobile timing and training application. Feature rich and simple to use. Patent Pending technology allows you to record, track, save, compare and analyze all of your critical time and performance data. Record your event and set timing markers after to gain greater precision. Save your timing data in data sheets to stay organized. The compare videos tool allows you to compare 2 videos side by side. Videos always begin at the start marker which makes synchronizing videos a breeze. Patent pending video stopwatch allows you to record an event or training session and then review frame by frame to precisely mark the start, lap and/or multiple finish times. If you are recording a race, Seconds Count can mark the finish points of all competitors and display each finish time and the time distance between each competitor. Data Sheets Store lap and finish times from manual and video timing in datasheets. Add text, dates and comments to cells to keep information organized. With thousands of columns and rows on each data sheet, there is plenty of room to store all of your records Manual Logging Stopwatch A manual stopwatch function can be deployed when video is not needed or used that will automatically log the results in a data sheet. Additional Labels and dates can be added to give these times organization as well. Solo Training Tool: Pro Subscription Required (1 Month Free Trial Available) A solo training function allows user to set app to automatically record multiple videos with a user selectable rest period in between each video allowing the user to repeatedly record themselves and later analyze their performance. Developing consistency is one of the keys to success. Compare Videos Tool: Pro Subscription Required (1 Month Free Trial Available) Improve your form and technique analysis with the compare videos tool. Videos are locked to move synchronously or can be unlocked to move independently. Videos always begin at the start marker which makes synchronizing them a breeze. Pro Subscription - Annual Pro Subscription ($5.99 per year) Subscription includes: - Introductory 1 Month Free Trial - Solo Training Tool - Compare Videos Tool - 60fps and 120fps Video Frame Rate Capability - Time Scroller Opacity Setting - Video Stabilization Setting - Video Brightness Control - Video Trimming Tool - Video Uploading to Web Application - Video Imports - Data Sheet Templates - Data Sheet Split Times - Freezing Data Sheet Headers An introductory 1 Month Free Trial will be given to new subscribers. Pending free trial eligibility, payment will be charged to iTunes Account at the end of the free trial unless cancelled 24 hours prior to the end of the current trial period. If not eligible for free trial, payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Privacy Policy and Terms of Use: https://secondscount.com/support Take your timing and technique analysis to the next level with Seconds Count. Check us out at www.secondscount.com.
Screenshots
Verdict
The clearest difference is rating: Physics Toolbox Sensor Suite at 4.7 against Video Stopwatch SC's 4.5. Physics Toolbox Sensor Suite also leads on update cadence (weekly vs fortnightly) and ratings volume (1.8K vs 356). Video Stopwatch SC's advantage is iOS requirement (10.0 vs 16.0). On price, review sentiment, ads and in-app purchases 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
Both are free to download. Physics Toolbox Sensor Suite sells 1 one-off in-app purchase and Video Stopwatch SC sells 1 in-app purchase, starting at $5.99 per year. Whichever you choose, the download price is not the number that matters.
Physics Toolbox Sensor Suite holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Physics Toolbox Sensor Suite has 1.8K ratings behind it against 356, so its average is the more settled of the two. Written reviews complicate that: 81% of Physics Toolbox Sensor Suite's written reviews are positive against 83% of Video Stopwatch SC's, so the app with the better star average is not the one people write more warmly about.
Physics Toolbox Sensor Suite ships an update weekly, Video Stopwatch SC fortnightly. Both last shipped on October 16, 2026.
| Parameter | Physics Toolbox Sensor Suite | Video Stopwatch SC |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.8K ratings) — better | 4.5 (356 ratings) |
| Positive reviews | 80.8% of reviews | 83.3% of reviews — better |
| Number of ratings | 1.8K — better | 356 |
| Update frequency | Weekly — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 78 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Chrystian Vieyra | Seconds Count Timing Systems LLC |
Customer experience
Physics Toolbox Sensor Suite
Video Stopwatch SC
Bugs and requests
Physics Toolbox Sensor Suite
Not enough reviews yet to summarise bugs or requests.
Video Stopwatch SC
Reported bugs
4 issues- App crashes when exporting files
- App freezes when importing videos
- Videos not saved after import attempt
- App not working after subscription
Requested features
4 requests- Ability to flip screen for recording
- Local saving of videos
- File export functionality
- Higher resolution options
In-app purchases
Physics Toolbox Sensor Suite
- Upgrade to Pro$5.99
Video Stopwatch SC
- Annual Pro Subscription1 Month trial$5.991 Year
Questions
Is Physics Toolbox Sensor Suite free?
Is Video Stopwatch SC free?
Which has better reviews, Physics Toolbox Sensor Suite or Video Stopwatch SC?
Do Physics Toolbox Sensor Suite or Video Stopwatch SC have ads?
Which is updated more often, Physics Toolbox Sensor Suite or Video Stopwatch SC?
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