Cello Tuner vs Physics Toolbox Sensor Suite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cello Tuner
This utility app provides accurate tuning notes for the cello, covering the standard C, G, D, and A strings. It's designed to help musicians quickly and easily achieve the correct pitch for their instrument.
- Plays tuning notes for cello
- Supports C string tuning
- Supports G string tuning
- Supports D string tuning
- Supports A string tuning
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Tune your cello quickly with clear, accurate reference notes for standard tuning (C G D A).
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)
Screenshots
Verdict
The clearest difference is rating: Physics Toolbox Sensor Suite at 4.7 against Cello Tuner's 3.9. Physics Toolbox Sensor Suite also leads on review sentiment (81% vs 44%) and ads (none vs shown). Cello Tuner's advantage is in-app purchases (none vs 1). On price, device support and iOS requirement 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. Cello Tuner asks for nothing beyond the download.
Physics Toolbox Sensor Suite holds the better App Store score, 4.7 against 3.9. That said, the two scores are not equally well evidenced: Physics Toolbox Sensor Suite has 1.8K ratings behind it against 252, so its average is the more settled of the two. Written reviews point the same way: 44% of Cello Tuner's written reviews are positive against 81% of Physics Toolbox Sensor Suite's.
Cello Tuner ships an update every 15 months, Physics Toolbox Sensor Suite weekly. The most recent releases landed on October 11, 2026 and October 16, 2026 respectively.
| Parameter | Cello Tuner | Physics Toolbox Sensor Suite |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (252 ratings) | 4.7 (1.8K ratings) — better |
| Positive reviews | 43.8% of reviews | 80.8% of reviews — better |
| Number of ratings | 252 | 1.8K — better |
| Update frequency | Every 15 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 36 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | Alvin Yu | Chrystian Vieyra |
Customer experience
Cello Tuner
Physics Toolbox Sensor Suite
Bugs and requests
Cello Tuner
Reported bugs
8 issues- Buttons unresponsive to taps
- Screen stays blank when app is opened
- Sound glitches triggered by advertisements
- App crashes or fails to load
- Notes only play for 2 seconds
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- Sound won't play at all
- Inaccurate pitch on certain notes (especially C string)
- Audio distortion and buzzing sounds
Requested features
8 requests- Longer note duration/sustain
- Better sound quality and more realistic cello tones
- Visual indicators showing if note is sharp or flat
- Ability to listen and analyze instrument input
- Increased volume output
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- Reduced or removed advertisements
- In-app instructions for new users
- Ability to hold notes continuously until user stops
Physics Toolbox Sensor Suite
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Cello Tuner
No in-app purchases
Physics Toolbox Sensor Suite
- Upgrade to Pro$5.99
Questions
Is Cello Tuner free?
Is Physics Toolbox Sensor Suite free?
Which has better reviews, Cello Tuner or Physics Toolbox Sensor Suite?
Do Cello Tuner or Physics Toolbox Sensor Suite have ads?
Which is updated more often, Cello Tuner or Physics Toolbox Sensor Suite?
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