Comparison

Keyless Tech 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

Keyless Tech

Features
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Welcome to the IoTen Technician App, the ultimate solution for organization technicians to configure and control IoTen products with ease and efficiency. With our powerful and intuitive app, technicians can seamlessly manage a wide range of IoTen products, ensuring smooth operations and optimal performance. Key Features: Device Configuration: The Technician App empowers technicians to effortlessly configure a diverse array of IoTen products, including smart home appliances, and more. With our user-friendly interface, technicians can quickly set up device parameters, customize settings, and establish connectivity. Diagnostic Tools: Our app includes diagnostic tools to assist technicians in identifying and resolving issues with IoTen products. Real-time data analytics and comprehensive device health reports enable technicians to proactively address potential problems, ensuring optimal performance and minimizing downtime. Firmware Management: With the Technician App, technicians can effortlessly manage firmware updates for all connected IoTen devices. Timely updates ensure devices are equipped with the latest features, security patches, and performance enhancements, maximizing their longevity and functionality. Collaboration and Communication: Our app facilitates seamless collaboration and communication among technicians and stakeholders. Technicians can share insights, troubleshoot together, and provide real-time status updates to supervisors, ensuring a coordinated and efficient workflow. Security and Privacy: We prioritize the security and privacy of your organization's IoT infrastructure. The Technician App incorporates robust encryption protocols, secure authentication mechanisms, and data privacy controls, safeguarding sensitive information and mitigating potential security risks. Customization and Scalability: The Technician App is designed to accommodate the unique needs of your organization. It offers flexible customization options, allowing you to tailor the app's features and workflows to align with your specific requirements. Additionally, our app supports scalability, enabling seamless integration with a growing number of IoTen products as your organization expands. Comprehensive Support: We are committed to providing exceptional support to our users. Our app includes comprehensive documentation, tutorials, and a dedicated support team to assist technicians in navigating the app's features, addressing queries, and resolving any technical issues that may arise. Experience the power and convenience of the Technician App, revolutionizing the way organization technicians configure and control IoTen products. Streamline your operations, enhance productivity, and ensure the optimal performance of your IoTen ecosystem. Download the Technician App today and unlock a new level of efficiency for your organization's IoTen infrastructure.

About

EyeSound Vocal

Features
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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

Keyless Tech4 screens
EyeSound Vocal4 screens

Verdict

The call

The clearest difference is iOS requirement: Keyless Tech at 15.0 against EyeSound Vocal's 17.0. On price, update cadence, ads and in-app purchases 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

Keyless Tech ships an update fortnightly, EyeSound Vocal every 3 weeks. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

Scorecard1 real difference ยท 5 level
Keyless Tech versus EyeSound Vocal: the parameters behind the verdict, then further details
ParameterKeyless TechEyeSound Vocal
PriceFreeFree
Update frequencyFortnightly โ€” betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 โ€” better17.0
Further details โ€” not scored
Size23 MB3 MB
Age rating17+4+
DeveloperSecurePushkeith house

In-app purchases

None

Keyless Tech

No in-app purchases

None

EyeSound Vocal

No in-app purchases

Questions

Is Keyless Tech free?
Keyless Tech 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 Keyless Tech or EyeSound Vocal have ads?
Neither Keyless Tech nor EyeSound Vocal shows ads.
Which is updated more often, Keyless Tech or EyeSound Vocal?
Keyless Tech ships an update fortnightly, and EyeSound Vocal every 3 weeks. Most recently, Keyless Tech was updated on October 18, 2026 and EyeSound Vocal on October 15, 2026.

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