Synchrony LEDs vs FrequencyCat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Synchrony LEDs
Control your LED lightshow remotely via Bluetooth. Customize colors, patterns, and display modes for your lighting effects. Settings are saved to the controller even after power off.
- Remote Bluetooth control
- Color and pattern selection
- Customizable color sets
- Music-free display modes
- Settings saved to controller
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The Synchrony™ LEDs App lets you operate the Synchrony™ LEDs controller remotely via Bluetooth using your iPhone, iPod Touch, or iPad. You can choose colors and patterns for your LED lightshow as you do with the buttons on the control box. Additionally, you can use the app to customize color sets, and activate display modes that don't require music. The control box remembers the settings made using the app after it is powered off.
FrequencyCat
Transform your photos into unique sound art using advanced image-to-sound technology. Explore, enjoy, and share your creative audio-visual pieces. Embrace your inner artist and discover the unexpected.
- Morph images into sound art
- Create spectrogram oddities
- Share sound art creations
- Unique audio-visual experience
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Hide an image inside sound. FrequencyCat is a playful tool for exploring the connection between images, sound, and spectrograms. Choose an image, and FrequencyCat transforms it into a unique audio signal. Play the sound and view its spectrogram, and you’ll see the original image emerge again from the frequencies. With FrequencyCat, you can: - Turn images into sound - View audio spectrograms in real time - Play sounds and reveal the images hidden inside them - Explore how different images create different sounds - Discover the relationship between sound, frequency, and Fourier transforms in an intuitive way There’s no magic behind it. Just frequencies, phases, an inverse Fourier transform, and a little curiosity about sound. Whether you’re interested in acoustics, music, signal processing, or simply wondering what an image might sound like, FrequencyCat gives you a new way to explore. Pick an image. Hear what it sounds like.
Screenshots
Verdict
The clearest difference is review sentiment: FrequencyCat at 100% against Synchrony LEDs's 0%. FrequencyCat also leads on rating (5.0 vs 2.7). Synchrony LEDs's advantage is update cadence (every 7 months vs every 40 months) and ratings volume (6 vs 1). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
FrequencyCat holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: Synchrony LEDs has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Synchrony LEDs's written reviews are positive against 100% of FrequencyCat's.
Synchrony LEDs ships an update every 7 months, FrequencyCat every 40 months. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.
| Parameter | Synchrony LEDs | FrequencyCat |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (6 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 6 — better | 1 |
| Update frequency | Every 7 months — better | Every 40 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 8.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 55 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Oscilloscape, LLC | Xuesong Zhang |
Customer experience
Synchrony LEDs
FrequencyCat
In-app purchases
Synchrony LEDs
No in-app purchases
FrequencyCat
No in-app purchases
