TV3 vs QuadroSphere
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Dual Oscillators (Square/Sawtooth)
- 24 dB/oct Low-Pass Filter
- Envelope Controls
- Versatile Distortion Modes
- Quick Sound Randomization
- Pattern Generator
- MIDI Export
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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.
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.
- 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
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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
Verdict
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
TV3 costs $6.99 and QuadroSphere $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
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.
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.
| Parameter | TV3 | QuadroSphere |
|---|---|---|
| Price | $6.99 — better | $7.99 |
| Rating | 4.9 (12 ratings) | 5.0 (10 ratings) — better |
| Positive reviews | 81.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 12 — better | 10 |
| Update frequency | Every 10 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 220 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Imaginando Lda | 4Pockets.com |
Customer experience
TV3
QuadroSphere
In-app purchases
TV3
No in-app purchases
QuadroSphere
No in-app purchases







