Comparison

TB Flowtones vs CentiGrade Visual Tuner

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

Head to head
About

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.

Highlights
  • 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 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.

About

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.

Highlights
  • Instant tuning on launch
  • Rolling trace for pitch history
  • Dynamic zoom interface
  • Fluid wave visualizer
  • Chromatic, Guitar, Bass presets
Features
Read 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

TB Flowtones4 screens
CentiGrade Visual Tuner4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
TB Flowtones versus CentiGrade Visual Tuner: the parameters behind the verdict, then further details
ParameterTB FlowtonesCentiGrade Visual Tuner
Price$9.99$0.99 — better
Rating4.7 (39 ratings)5.0 (1 ratings) — better
Positive reviews82.9% of reviews—
Number of ratings39 — better1
Update frequencyEvery 3 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size17 MB18 MB
Age rating4+4+
DeveloperToneBoostersPHILIP BRADLEY KING

Customer experience

TB Flowtones

All ratings39 ratings
Positive89.7%
Neutral7.7%
Negative2.6%
Written reviews35 reviews
Positive82.9%
Neutral11.4%
Negative5.7%

CentiGrade Visual Tuner

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

TB Flowtones

No in-app purchases

None

CentiGrade Visual Tuner

No in-app purchases

Questions

Is TB Flowtones free?
TB Flowtones costs $9.99, with no in-app purchases.
Is CentiGrade Visual Tuner free?
CentiGrade Visual Tuner costs $0.99, with no in-app purchases.
Which has better reviews, TB Flowtones or CentiGrade Visual Tuner?
CentiGrade Visual Tuner is rated higher. TB Flowtones averages 4.7 out of 5 from 39 ratings, while CentiGrade Visual Tuner averages 5.0 from 1 ratings.
Do TB Flowtones or CentiGrade Visual Tuner have ads?
Neither TB Flowtones nor CentiGrade Visual Tuner shows ads.
Which is updated more often, TB Flowtones or CentiGrade Visual Tuner?
TB Flowtones ships an update every 3 months, and CentiGrade Visual Tuner every 4 days. Most recently, TB Flowtones was updated on October 8, 2026 and CentiGrade Visual Tuner on September 26, 2026.

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