Harman Kardon Controller vs GroovyDragon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Harman Kardon Controller
Stream high-definition audio throughout your home with this app. It allows you to set up and customize compatible wireless speakers, create surround sound systems, and control audio playback from local or cloud sources.
- Stream HD audio wirelessly
- Set up and customize speakers
- Create 5.1 surround sound
- Control multi-room audio
- Stream local and cloud content
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The Harman Kardon Controller app works seamlessly with the Harman Kardon Omni 10+, Omni 20+, Omni 50+, Omni Bar+, Omni Adapt+, and Omni Adapt+Amp speakers to let you stream HD audio around your home. Use the Controller app to set up and customize your speakers, setup a true wireless 5.1 surround system, control audio in your house and stream local or cloud content in glorious HD audio.
GroovyDragon
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GroovyDragon is a Breathing Exerciser App which uses GroovTube Bluetooth hardware to allow Users to play a Game using their Breath. Features: * Uses exhales/inhales to play a fun game * Threshold slider to adjust the amount of breath needed to play the game * 5 challenging levels * Integrates with Bluetooth hardware with simple discover/connect mechanism * Advanced settings includes “Gravity” on/off. With Gravity enabled the game will be more challenging for the experienced user * Gravity Off makes this game suitable for young children * Breathing direction can be set to Inhale or Exhale, so you can practise breathing in or out * The Game also responds to screen taps, so everybody can play: brothers, sisters, grandpa, grandma, daddy, mamma, therapist, caregiver etc.
Screenshots
Verdict
The clearest difference is device support: Harman Kardon Controller at 4 against GroovyDragon's 1. On price, update cadence, ads and in-app purchases 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.
Harman Kardon Controller ships an update every 2 months, GroovyDragon every 3 months. The most recent releases landed on November 6, 2026 and October 26, 2026 respectively.
| Parameter | Harman Kardon Controller | GroovyDragon |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (100 ratings) — better | — |
| Positive reviews | 9.2% of reviews | — |
| Number of ratings | 100 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPad |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 64 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Harman International Industries | Ruud van der Wel |
Bugs and requests
Harman Kardon Controller
Reported bugs
4 issues- Speakers frequently disconnect from WiFi
- App fails to detect or connect to speakers
- Music playback issues like skipping, popping, and abrupt stops
- Compatibility problems with newer iOS versions
Requested features
4 requests- Add support for popular music streaming services
- Improve app stability and user experience
- Implement advanced features like EQ, gapless playback, and custom playlists
- Provide better integration with local music libraries
GroovyDragon
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Harman Kardon Controller
No in-app purchases
GroovyDragon
No in-app purchases
Questions
Is Harman Kardon Controller free?
Is GroovyDragon free?
Do Harman Kardon Controller or GroovyDragon have ads?
Which is updated more often, Harman Kardon Controller or GroovyDragon?
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