# TB Flowtones

> Virtual analog synthesizer

Canonical page: [https://chrome-stats.com/d/id1576472437](https://chrome-stats.com/d/id1576472437)

## Overview

- **ID:** `id1576472437`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** ToneBoosters
- **Category:** Music
- **Rating:** 4.70 / 5 (39 ratings)
- **Version:** 1.6.8
- **Last updated:** 2026-05-28
- **First published:** 2021-08-10
- **Size:** 17 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/tb-flowtones/id1576472437)
- **Website:** [https://www.toneboosters.com/tb\_flowtones\_v1.html](https://www.toneboosters.com/tb_flowtones_v1.html)
- **Privacy policy:** [http://www.toneboosters.com/terms.html](http://www.toneboosters.com/terms.html)

## Description

TB Flowtones Virtual Analog Synthesizer app and AUv3 plug-in

Thanks to it's true VA synthesis engine, the use of analog-modelled non-linear filters and extensive modulation options, Flowtones sounds warmer and more analog than digital romplers and wavetable-based synths.

TB Flowtones comes as stand-alone app as well as AUv3 plugin.

True virtual analog synthesis features:
- 4 VCO architecture (two voice layers with two VCOs each)
- 4 synthesis engine types, in part modelled after famous analog synthesisers
- 36 analog VCO waveforms featuring all classic waveforms and more
- All VCO waveforms support pulse width modulation
- Full stereo and mono unison modes for each VCO independently
- Noise and subharmonic oscillators for each VCO 
- Unique ring and self-modulation matrix
- High-quality, warm, non-linear filters (VCF) with over 30 filter types, including unique multi-resonance filters

Modulation features:
- Four LFOs with 30 waveforms each
- LFOs can modulate other LFOs, including themselves!
- Three additional envelope generators, with key velocity modulation
- Quick access to modulation strengths through context menus
- Hundreds of modulation signal paths available
- LFOs can produce noise as waveform to randomly modulate other parameters; for example to simulate slight variations in analog filter parameters as they happen in analog circuits.

Pro-grade effects
- Studio-quality reverb, delay, and chorus effects
- Unique formant filter to add vocal character
- Analog and digital distortion / bit crushing effects
- Master equaliser and peak limiter for final touch
- Non-linear power supply simulation for authentic interaction between notes

Step sequencer
- Fully integrated, intuitive step sequencer
- Can trigger chords and note series / phrases
- Can run asynchronously or synchronously to the host
- Smart copy/paste of note series to improve workflow
- Smart zoom: edit fine details while keeping an overview over the full sequence

Presets and intelligent randomizer
- Flowtones comes with hundreds of presets to spark your creativity
- Intelligent randomizer to explore endless sound synthesis possibilities

What you should know:
- Licenses acquired for this platform are not compatible with other platforms.
- Audio Unit (AUv3) extensions require an iPad mini 2, iPad 4 or later models.

## Rankings

- #191,039 — Overall

## Review summary

TB Flowtones is praised for its authentic analog-like sound, deep versatility, and approachable workflow. Reviewers highlight its rich modulation options and distinctive formant filter as standout features, making it a strong choice for sound designers and learners on iOS. The primary recurring drawback is the absence of preset management (no favorites or patch rating), with users requesting an easier way to organize patches. Overall, TB Flowtones is a capable, flexible synth with high-quality tones, though some quality-of-life improvements would be welcome.

### Pros

- Excellent true-analog-sounding tone with great versatility.
- Rich feature set with extensive modulation options (waveforms, oscillator features, ring modulation, filters, and effects) that appeal to sound designers and learners.
- Formant filter plus expressive tools (unison knob) provide distinctive sound-shaping capabilities.
- User-friendly UI and intuitive workflow.

### Cons

- Missing preset management features (no built-in favorites or patch rating) – a commonly requested improvement.

## Similar extensions and apps

- [TB Lowtone](https://chrome-stats.com/d/id6448315127) — 4.40 / 5
- [Tonic Synth — AUv3](https://chrome-stats.com/d/id6783345229) — 5.00 / 5
- [TB DualVCF](https://chrome-stats.com/d/id1505169270) — 4.90 / 5
- [VIRAL Synth 2: T2x | AUv3](https://chrome-stats.com/d/id6749867472) — 4.90 / 5
- [TB VoicePitcher](https://chrome-stats.com/d/id1619076934) — 4.40 / 5
- [FM20](https://chrome-stats.com/d/id1615311558) — 5.00 / 5
- [VAPolyTS](https://chrome-stats.com/d/id6746113136) — 5.00 / 5
- [BASSalicious](https://chrome-stats.com/d/id1089502073) — 3.20 / 5
- [VAMonoMkII](https://chrome-stats.com/d/id6502985768) — 5.00 / 5
- [4Waves Synth AUv3](https://chrome-stats.com/d/id1545450649) — 4.70 / 5
- [Tonic Synths](https://chrome-stats.com/d/id6781071843) — 5.00 / 5
- [Relic Flow](https://chrome-stats.com/d/id6499490810) — 4.90 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id1576472437)