Comparison

Physics Labs vs EyeSound Vocal

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Physics Labs

This app uses your device's sensors to measure various physical quantities like acceleration, magnetic fields, and sound levels. View data in coordinates or scalar magnitude, and export it to Excel for analysis. It's a digital lab for your phone.

Highlights
  • Measure acceleration, magnetic fields, and sound levels
  • View data in X, Y, Z coordinates or scalar magnitude
  • Export sensor data to Excel for analysis
  • Eliminate gravity from acceleration measurements
  • Measure atmospheric pressure
Features
Read full description

Physics Lab is all-in-one Sensor app which let you know physical entities around you like acceleration, magnetic fields, light intensity, sound decibel and much more... Physics Lab measures physical parameters by using your device sensors which typical device contain bunch of those sensors! Application give output in high precision with short intervals based on your sensor's capabilities. In Physics Lab, you can observe physical data in coordinates (X-axis, Y-axis, Z-axis) or in scalar magnitude. If you want, you can export sensor data into Excel by one click! Using export to excel feature you can obtain statistical information about your measurement. Physical quantities that can be measured Physics Lab: * Accelerometer: Measuring acceleration around your device. Output in m/s2 for x, y and z axes. Also, you can eliminate gravity from your measurements by one click and see real acceleration. * Magnetometer: Measuring magnetic field around your device. Output in ยตT for x, y and z axes. * Gyroscope: Measure angular inclination in x, y and z axes. Output in degree (ยฐ) * Luxmeter: COMING SOON * Barometer: Measure atmospheric pressure. Output in bar. * Noisemeter: Measure loudness around you. Output in dB. If you like our application, you can give us 5 stars. You can forward any suggestions, requests or concerns to info@grandmount.org

About

EyeSound Vocal

Features
Read full description

EyeSound Vocal converts spoken words and other sounds into data rich images. These are seen in an active spectrogram displayed on the screen of your device. Latency of sound-to-image is less than 100 milliseconds. The spectrogram can be tuned by the user so that images of most spoken words are recognizable and are unique. If one has memorized a good sized vocabulary of word images, there can be some visual comprehension of spoken conversations just from viewing the app's spectrogram. Details in the spectrograms indicate inflection and volume. Applications/uses: - entertainment - watch as sounds and conversations morph into image streams - art - create and download spectrogram images that correspond to spoken phrases or other sounds ------------------------------------------------ NOTE: EyeSound Vocal does not capture medical data and does not provide health related measurements, diagnoses or treatment advice. It is not intended for use as a tool for treatment of medical conditions. It is not intended for use as a tool for scientific measurements. ------------------------------------------------ User adjustable parameters in the app include the rate at which sonogram images progress across the screen, resolution, colors, color switching and color mapping to sound intensity, high frequency boost. Features include auto gain, display of saved images next to active or paused spectrogram, pause/resume for capture of images, save/recall of images, save/recall of setup parameters, default parameter setup that is well suited to the visualization of human speech. full screen mode for a view of nothing but the active, or paused, spectrogram. How the app works: Sound is captured by your device's microphone. The app processes the sound data in small sized packets. For each packet the app computes frequencies and intensities. A spectrogram is created by color mapping intensities across frequency bins and then plotting these versus time. With ongoing plotting of packet data as it arrives the spectrogram becomes 'active' - it appears as a movie. EyeSound - Past, Present, Future: 45 years ago, in 1979, a young chemical engineer fresh out of MIT had just begun working for GE in Niskayuna, NY. In his spare time he built and experimented with breadboarded circuits that incorporated resistors and capacitors, transistors and ICs and lights, microphones and speakers. One day he assembled a device consisting of a row of LEDs tied into a circuit that would sequentially light the LEDs in accordance with an input voltage signal. When he manually swept this device in an arc he saw - very much to his surprise and to his fascination - images of complex waveforms painted across empty air. This simple device was giving a glimpse of all of the information that was normally only heard! The engineer had found a mission: improve upon the device to open to the world a whole new dimension of visual perception. A team of 2 of us - the engineer and the coder - have over the past several months turned the concept into an app. The initial release is happening now. The 45 year old mission is on the verge of realization. We anticipate releasing new versions of the EyeSound Vocal app on a regular basis. Users - please send us your suggestions and we'll use them as direction for improvements and use them to expand on our user tips. We will be taking a look into interfacing EyeSound with two types of peripheral devices (1) AR glasses which could put the active spectrogram front and center in your field of view - so that while viewing the spectrogram you will be more in the same world with the people around you; (2) wearable, directional and better quality microphones to avoid the pick up of background sounds that at times obscure the visualizations.

Screenshots

Physics Labs4 screens
EyeSound Vocal4 screens

Verdict

The call

The clearest difference is ads: EyeSound Vocal at none against Physics Labs's shown. Physics Labs's advantage is iOS requirement (15.6 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Physics Labs ships an update every 2 weeks, EyeSound Vocal every 3 weeks. Both last shipped on November 4, 2026.

Scorecard2 real differences ยท 6 level
Physics Labs versus EyeSound Vocal: the parameters behind the verdict, then further details
ParameterPhysics LabsEyeSound Vocal
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 2 weeks โ€” betterEvery 3 weeks
AdsYesNo โ€” better
In-app purchasesNoNo
MonetizationAd-supportedโ€”
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.6 โ€” better17.0
Further details โ€” not scored
Size32 MB3 MB
Age rating4+4+
DeveloperHuseyin Aykut Uludagkeith house

In-app purchases

None

Physics Labs

No in-app purchases

None

EyeSound Vocal

No in-app purchases

Questions

Is Physics Labs free?
Physics Labs is free to download, with no in-app purchases.
Is EyeSound Vocal free?
EyeSound Vocal is free to download, with no in-app purchases.
Do Physics Labs or EyeSound Vocal have ads?
Physics Labs shows ads; EyeSound Vocal does not.
Which is updated more often, Physics Labs or EyeSound Vocal?
Physics Labs ships an update every 2 weeks, and EyeSound Vocal every 3 weeks. Most recently, Physics Labs was updated on November 4, 2026 and EyeSound Vocal on November 4, 2026.

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