# TB Flowtones vs CentiGrade Visual Tuner

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.

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.

## The numbers

| Metric | TB Flowtones | CentiGrade Visual Tuner |
| --- | --- | --- |
| Price | $9.99 | **$0.99** |
| Rating | [4.7 (39 ratings)](https://appshunter.io/ios/app/tb-flowtones/id1576472437/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/centigrade-visual-tuner/id6758646319/reviews)** |
| Number of ratings | **39** | 1 |
| Positive reviews | 82.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Paid | Paid |
| Size | 17 MB | 18 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ToneBoosters](https://appshunter.io/developer/1472446500) | [PHILIP BRADLEY KING](https://appshunter.io/developer/1874172215) |

## What reviewers say

### TB Flowtones

[App page](https://appshunter.io/ios/app/tb-flowtones/id1576472437)

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

**In-app purchases:** none


### CentiGrade Visual Tuner

[App page](https://appshunter.io/ios/app/centigrade-visual-tuner/id6758646319)

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:** macOS Compatibility

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*