TB Flowtones vs CentiGrade Visual Tuner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TB Flowtones
This virtual analog synthesizer app offers a true VA synthesis engine with analog-modeled filters and extensive modulation options. Create warm, analog-sounding music with a powerful architecture, diverse waveforms, and pro-grade effects. It also includes an integrated step sequencer and hundreds of presets.
- True virtual analog synthesis engine
- Analog-modelled non-linear filters
- Extensive modulation options
- Pro-grade studio effects
- Integrated step sequencer
- Hundreds of presets and intelligent randomizer
Read full descriptionHide full 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.
CentiGrade Visual Tuner
This app provides instant, ad-free tuning with a unique rolling trace feature for pitch practice. Its interface dynamically zooms as you approach the target note, offering multiple visual modes and presets for various instruments.
- Instant tuning on launch
- Rolling trace for pitch history
- Dynamic zoom interface
- Fluid wave visualizer
- Chromatic, Guitar, Bass presets
Read full descriptionHide full description
No Ads: Instant tuning as soon as you open the app. Rolling Trace: See a historical line of your pitch for perfect intonation practice. Dynamic Zoom: The interface adapts as you get closer to your target note. Multiple Modes: Toggle between a fluid wave visualizer and the rolling history roll. Presets: Support for Chromatic, Guitar, and Bass tuning.
Screenshots
Verdict
The clearest difference is price: CentiGrade Visual Tuner at $0.99 against TB Flowtones's $9.99. CentiGrade Visual Tuner also leads on update cadence (every 4 days vs every 3 months) and rating (5.0 vs 4.7). TB Flowtones's advantage is ratings volume (39 vs 1). On ads, in-app purchases, monetization model 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
TB Flowtones costs $9.99 and CentiGrade Visual Tuner $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
CentiGrade Visual Tuner holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: TB Flowtones has 39 ratings behind it against 1, so its average is the more settled of the two.
TB Flowtones ships an update every 3 months, CentiGrade Visual Tuner every 4 days. The most recent releases landed on October 8, 2026 and September 26, 2026 respectively.
| Parameter | TB Flowtones | CentiGrade Visual Tuner |
|---|---|---|
| Price | $9.99 | $0.99 — better |
| Rating | 4.7 (39 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 82.9% of reviews | — |
| Number of ratings | 39 — better | 1 |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 17 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | ToneBoosters | PHILIP BRADLEY KING |
Customer experience
TB Flowtones
CentiGrade Visual Tuner
In-app purchases
TB Flowtones
No in-app purchases
CentiGrade Visual Tuner
No in-app purchases
Questions
Is TB Flowtones free?
Is CentiGrade Visual Tuner free?
Which has better reviews, TB Flowtones or CentiGrade Visual Tuner?
Do TB Flowtones or CentiGrade Visual Tuner have ads?
Which is updated more often, TB Flowtones or CentiGrade Visual Tuner?
Other comparisons















