glrkgl vs FrequencyCat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
glrkgl
This application allows users to create robot noises using their phone. It aims to disrupt conversations with unique sound effects. Simply touch and dance to generate robot sounds.
- Robot noise generation
- Interactive sound creation
- Conversation disruption tool
- Touch-based controls
- Dance integration
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Make Robot Noises With Your Phone Most startups disrupt industries. glrkgl disrupts conversations. "TOUCH! DANCE! glrkgl."
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 ratings volume: glrkgl at 8 against FrequencyCat's 1. glrkgl also leads on device support (4 vs 1) and iOS requirement (12.0 vs 16.0). On price, rating, review sentiment and update cadence 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.
On the App Store both sit at effectively the same score — 5.0 for glrkgl against 5.0 for FrequencyCat. That said, the two scores are not equally well evidenced: glrkgl has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
glrkgl ships an update every 55 months, FrequencyCat every 40 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | glrkgl | FrequencyCat |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 8 — better | 1 |
| Update frequency | Every 55 months | Every 40 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 9 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Greg Kufera | Xuesong Zhang |
Customer experience
glrkgl
FrequencyCat
In-app purchases
glrkgl
No in-app purchases
FrequencyCat
No in-app purchases
