Solderbox vs TV3
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solderbox
This app is a compact, semi-modular synthesizer designed for generative music creation. It offers a comprehensive set of modular functions, aiming for analog-like sound and behavior with unique digital effects and an 'Instability Engine' for organic fluctuations.
- Generative synthesis tools
- Analog-like sound emulation
- Instability Engine for organic fluctuations
- Audio Unit (AUv3) compatibility
- Built-in Pulsequencer melody generator
- Multiple filter modes
- Stackable patch cables
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Solderbox is a compact semimodular synthesizer, made in collaboration with Jakob Haq. It is heavily based on Jakob's own modular rack design (which features a lot of modules made by hand). The app is designed to offer a set of modular functions that is both comprehensive and eclectic, including several tools for generative synthesis, random signals and the surgical mangling of audio waves and modulation signals. A lot of effort went into making everything sound and behave as analog as digitally possible (with the exception of the unashamedly digital Entropy lo-fi effect processor). Additionally, the built-in Instability Engine injects the subtle fluctuations simulating the effects of crosstalk, leaky signals and expired electrical components. This is a living instrument with a soul of its own. - Full Audio Unit compatibility (AUv3 instrument, audio effect) - Universal design (iPhone, iPad, MacOS AUv3) - Built-in Pulsequencer (LFO-based generative melody generator with custom scales) - 4 mode Low-pass filter (6, 12, 18, 24 dB) - 3 voice polyphony - Drone mode - Stackable patch cables - DIY Lo-Fi digital delay circuit emulation - All synth settings exposed a AU Parameters (for automation and MIDI learning in your host of choice) Find the user manual on ruismaker.com
TV3
Create iconic acid basslines with this powerful yet user-friendly synthesizer. Features 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 & Editor
- 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.
Screenshots
Verdict
The clearest difference is price: TV3 at $6.99 against Solderbox's $12.99. Solderbox's advantage is device support (4 vs 2) and iOS requirement (13 vs 17.0). On rating, review sentiment, ratings volume and update cadence 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
Solderbox costs $12.99 and TV3 $6.99 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 — 5.0 for Solderbox against 4.9 for TV3. Both are backed by a comparable volume of ratings — 27 and 13 respectively. Written reviews are what separate them: 90% of Solderbox's written reviews are positive against 83% of TV3's.
Solderbox ships an update every 6 weeks, TV3 every 2 months. Both last shipped on November 4, 2026.
| Parameter | Solderbox | TV3 |
|---|---|---|
| Price | $12.99 | $6.99 — better |
| Rating | 5.0 (27 ratings) — better | 4.9 (13 ratings) |
| Positive reviews | 90.0% of reviews — better | 83.3% of reviews |
| Number of ratings | 27 — better | 13 |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 13 — better | 17.0 |
| Further details — not scored | ||
| Size | 8 MB | 220 MB |
| Age rating | 4+ | 4+ |
| Developer | Bram Bos | Imaginando Lda |
Customer experience
Solderbox
TV3
In-app purchases
Solderbox
No in-app purchases
TV3
No in-app purchases









