Polyrhythm vs D Code App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Polyrhythm
Create a personalized soundscape for relaxation, sleep, or meditation. Explore a variety of organic and synthesized instruments, ambient background sounds, and AI-generated presets. Customize and save your favorite sound combinations for a tranquil experience.
- Variety of sound presets
- Organic and synthesized instruments
- Background ambient sounds
- AI preset generator
- Advanced preset customization
- Create and save custom presets
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When it's time for rest and relaxation, our app will become your faithful companion. Perfect for use before sleep or during meditation, it can also help soothe your child or yourself. Based on polyrhythmic sound playback, our app promises a deep immersion into the world of sounds and visualizations. Features of our app: - A variety of presets with unique moods; - Various organic and synthesized musical instruments to create the perfect atmosphere; - Background sounds including white noise, bird songs, and ocean waves; - AI preset generator for a continuous flow of inspiration; - Advanced preset customization for precise sound tuning; - Ability to create custom presets and save them to favorites. Discover the world of harmony and tranquility with our unique app - your personal oasis of calm. Also worth reading Privacy Policy: https://sites.google.com/view/castles-trip-privacy-policy. And Terms of use: https://sites.google.com/view/polyrhythm-tos
D Code App
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Dive into the future with "D Code," the innovative app transforming everyday encounters through dynamic QR codes and augmented reality (AR). With "D Code," objects around you become gateways to a myriad of interactive, informative, and immersive experiences. Perfect for both creators and explorers, this app bridges the digital with the physical, offering endless possibilities at your fingertips. Why Choose D Code? Instant AR Experiences: Discover a world where your camera unlocks hidden content. From educational journeys that captivate your mind to shopping experiences that bring products to life, "D Code" makes it happen instantly. Create and Share: Tailor-made for innovators, marketers, educators, and dreamers, our platform empowers you to craft your own QR codes. Embed videos, 3D models, or web links, and share your creations with the world. Seamless Integration: Say goodbye to bulky downloads. "D Code" leverages App Clips for frictionless access to AR content, ensuring a smooth, engaging experience without the wait. For Everyone, Everywhere: Whether enhancing customer engagement, making learning fun, or sending personalized messages, "D Code" delivers. Our intuitive design means anyone can create, scan, and enjoy. Features: Custom QR codes triggering diverse actions AR overlays for real-world interactions User-friendly content creation tools Detailed analytics for content creators A secure, privacy-conscious platform Empower Your Reality: Retailers can revolutionize the shopping experience, educators can turn lessons into adventures, and artists can add a new dimension to their work. With "D Code," your imagination is the only limit. Get Started: Join the "D Code" community today. Transform your world by downloading the app. Engage with content that educates, entertains, and enlightens. Experience the magic of augmented reality and interactive QR codes with "D Code" – where every scan is the beginning of something extraordinary. Contact us at contact@travancoreanalytics.com to get access to the D-Code portal.
Screenshots
Verdict
The clearest difference is in-app purchases: D Code App at none against Polyrhythm's 3. D Code App also leads on update cadence (weekly vs every 5 weeks). Polyrhythm's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price and ads 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. Polyrhythm sells 3 in-app purchases, starting at $1.99 per 7 days. D Code App asks for nothing beyond the download.
Polyrhythm ships an update every 5 weeks, D Code App weekly. Both last shipped on September 30, 2026.
| Parameter | Polyrhythm | D Code App |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (7 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 5 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 131 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Stanislav Duplinskiy | Travancore Analytics Pvt. Ltd |
In-app purchases
Polyrhythm
- Full access to app functions$1.997 Days
- Full access to app functions$5.991 Month
- Full access to app functions3 Days trial$12.993 Months
D Code App
No in-app purchases









