Comparison

TV3 vs QuadroSphere

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

Head to head
About

TV3

Create iconic acid basslines with this powerful yet user-friendly synthesizer. Inspired by the classic TB-303, it offers dual oscillators, a resonant low-pass filter, versatile distortion, and a pattern generator for endless musical possibilities.

Highlights
  • Dual Oscillators (Square/Sawtooth)
  • 24 dB/oct Low-Pass Filter
  • Envelope Controls
  • Versatile Distortion Modes
  • Quick Sound Randomization
  • Pattern Generator
  • MIDI Export
Read full description

Introducing TV3 - Acid Synth, the swiftest acid bassline synth. Inspired by the legendary TB-303, TV3 combines a user-friendly interface with handy features to fast-track your acid jams. Key Features: - Dual Oscillators: Main and Sub oscillators with selectable Square and Sawtooth waveforms. - 24 dB/oct Low-Pass Filter: Resonant, non-self oscillating filter with adjustable cutoff and resonance controls. - Envelope Controls: Fine-tune your sound with parameters for accent, decay and envelope modulation. - Versatile Distortion: Add character to your basslines four distinct modes—Saturation, Saturated Wavefolding, Fuzz, and Nock. - Quick Randomization: Tap on Acid Boy for total sound randomization - Pattern Generator: Instant generation of endless patterns with adjustable complexity, length, scale, and key. - Pattern Editor: edit your generated sequences with pitch, accent, gate and slide controls. - MIDI Export: Export your patterns as MIDI files. TV3 offers a simple and fun workflow to help you produce iconic acid sounds on your iOS device. Download TV3 Acid Synth today and unleash the power of acid basslines at your fingertips.

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.

Screenshots

TV34 screens
QuadroSphere4 screens

Verdict

The call

The clearest difference is update cadence: QuadroSphere at every 3 weeks against TV3's every 10 months. QuadroSphere also leads on review sentiment (100% vs 82%) and iOS requirement (13.0 vs 17.0). TV3's advantage is price ($6.99 vs $7.99). On rating, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

TV3 costs $6.99 and QuadroSphere $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for TV3 against 5.0 for QuadroSphere. Both are backed by a comparable volume of ratings — 12 and 10 respectively. Written reviews are what separate them: 82% of TV3's written reviews are positive against 100% of QuadroSphere's.

UpkeepUpdate frequency

TV3 ships an update every 10 months, QuadroSphere every 3 weeks. The most recent releases landed on September 15, 2026 and September 30, 2026 respectively.

Scorecard4 real differences · 6 level
TV3 versus QuadroSphere: the parameters behind the verdict, then further details
ParameterTV3QuadroSphere
Price$6.99 — better$7.99
Rating4.9 (12 ratings)5.0 (10 ratings) — better
Positive reviews81.8% of reviews100.0% of reviews — better
Number of ratings12 — better10
Update frequencyEvery 10 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size220 MB18 MB
Age rating4+4+
DeveloperImaginando Lda4Pockets.com

Customer experience

TV3

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive81.8%
Neutral0.0%
Negative18.2%

QuadroSphere

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

TV3

No in-app purchases

None

QuadroSphere

No in-app purchases

Questions

Is TV3 free?
TV3 costs $6.99, with no in-app purchases.
Is QuadroSphere free?
QuadroSphere costs $7.99, with no in-app purchases.
Which has better reviews, TV3 or QuadroSphere?
QuadroSphere is rated higher. TV3 averages 4.9 out of 5 from 12 ratings, while QuadroSphere averages 5.0 from 10 ratings.
Do TV3 or QuadroSphere have ads?
Neither TV3 nor QuadroSphere shows ads.
Which is updated more often, TV3 or QuadroSphere?
TV3 ships an update every 10 months, and QuadroSphere every 3 weeks. Most recently, TV3 was updated on September 15, 2026 and QuadroSphere on September 30, 2026.

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