Comparison

QuadroSphere vs Robtronik.FM

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

QuadroSphere

This audio plugin allows musicians to sculpt immersive soundscapes by controlling stereo placement and effects across four distinct frequency bands. Create dynamic, atmospheric audio with automated movement and morphing between saved settings.

Highlights
  • 4 configurable frequency bands
  • Control stereo separation, level, and pan per band
  • Create and morph between 12 snapshots
  • Modulation control for automated sweeps
  • Per-band effects (Haas, Delay, Reverb, Chorus, Compressor)
  • Convert mono to pseudo-stereo
  • MIDI CC control
Features
Read full description

QuadroSphere is a great tool for bringing an instrument to life by creating a soundscape with a constantly moving sound source. QuadroSphere splits the incoming audio signal into 4 distinct coloured frequency bands using the frequency bar. Each band has an associated coloured sphere allowing you to control the pan, stereo separation and volume level. You can use this plugin as a way to impose subtle control over stereo placement with little or no movement, or go crazy with random automation. Adding effects such as reverb or delay on a specific frequency band can help create a lush atmospheric swirling which surrounds the listener. This is great for musicians trying to create minimalistic ambient or tranquil soundscapes. You can create up to 12 snapshots of the sphere parameters and effect settings, then morph between them at a designated speed (measured in beats). You can also enable continuous randomization mode, and have full control over which spheres and control which parts are automated. You can also use QuadroSphere as a stereo splitter, using the additional outputs to add your own effects to band outputs. Key Features: ○ 4 Configurable frequency bands. ○ Control stereo separation, level and pan for each band. ○ Create up to 12 Snapshots. ○ Morph between various panning, width and frequency band levels. ○ Modulation control for automated sweeps around pan center. ○ Convert MONO signals into a pseudo-stereo image. ○ Per band Haas, Delay, Reverb, Chorus and Compressor. ○ Allows combined and individual per-band audio outputs. ○ Continuous randomized morphing of the stereo field. ○ Built in Preset Manager with drag and drop support. ○ Power and Solo for each band. ○ Controlable morph speeds. ○ Various animated transition modes. ○ Access most options using AU parameters or MIDI CC control.

About

Robtronik.FM

Features
Read full description

Robtronik.FM is the 24/7 streaming heartbeat of Robtronik Presents: Las Vegas focused events, but available worldwide streaming straight to your ears. This app delivers the exact energy of our iconic club nights straight to your pocket, no interruptions, no switching streams. Every hour, the station rotates through dedicated blocks that mirror our real-world events in Vegas: COMPRESSION Hour — Pure house and techno heat, inspired by the melodies of Detroit, European minimalist drums, and pure form tech house: rolling bass lines, hypnotic synths, and relentless drive for underground late-night vibes. WILDSTYLE Hour — Heavy breaks, bass, and beats: gritty drum patterns, wobbly subs, and festival-ready drops that slam like a warehouse rave. Eighties boom boxes smashed into future state drum and bass and everything inbetween. FlashDance Hour — Classic house music dance floor anthems and modern remixes: timeless 90s/00s house, disco grooves, and nostalgic bangers recharged for today. Nudisco infused into classics! Factory Floor Hour — Dance-punk edge: angular post-punk rhythms fused with industrial grit, hypnotic repetition, and raw, dance floor aggression — think punk attitude meets relentless groove. Robtronik.FM provides one unified high-fidelity stream (up to 320 kbps AAC on premium connections) keeps the vibes shifting and connected — experience the full Robtronik Presents music universe without leaving the app. It's the virtual extension of our Las Vegas nights: past, present, and future dancefloor heat, building hype for upcoming club events and the Westworld festival on the horizon. Key Features: Live streaming 24/7 with automatic hourly block rotation High-quality audio for that club-level punch Easy play/pause, sleep timer, and background listening Push notifications for special previews or Vegas event alerts (coming soon) Seamless integration with your Robtronik.FM web player at robtronik.fm Whether you're pre-gaming Compression, craving WildStyle bass drops, reliving FlashDance classics on the Strip, or craving the raw dance-punk intensity of Factory Floor, Robtronik.FM keeps the party going non-stop. Launched March 3, 2026 — download now and lock into the sound of Las Vegas dance music. Vegas Dance Musique, Non Stop!

Screenshots

QuadroSphere4 screens
Robtronik.FM3 screens

Verdict

The call

The clearest difference is price: Robtronik.FM at Free against QuadroSphere's $14.99. QuadroSphere's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.0). On in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Robtronik.FM is free to download; QuadroSphere costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard3 real differences · 7 level
QuadroSphere versus Robtronik.FM: the parameters behind the verdict, then further details
ParameterQuadroSphereRobtronik.FM
Price$14.99Free — better
Rating5.0 (10 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 3 weeks—
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size18 MB58 MB
Age rating4+4+
Developer4Pockets.comAccelerateRPM LLC

In-app purchases

None

QuadroSphere

No in-app purchases

None

Robtronik.FM

No in-app purchases

Questions

Is QuadroSphere free?
QuadroSphere costs $14.99, with no in-app purchases.
Is Robtronik.FM free?
Robtronik.FM is free to download, with no in-app purchases.
Do QuadroSphere or Robtronik.FM have ads?
Robtronik.FM shows ads; QuadroSphere does not.

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